Prorussians say that 1) the CIA was behind the disaster and 2) the Fukushima nuclear disaster is far worse but they rule out that the tsunami was the catalizer and not stupidity like Chernobyl
BOUTH are cities. Chernobyl is old city, when power plant was build it was nearest city to it, so power plant was named after it. Later, they build city Pripyat much closer to power plant, for people working in it. And it quickly become much bigger (16k in Chernobyl, 50k in Pripyat). Today Pripyat is completely abandoned, called "ghost city", while in Chernobyl live around 2k people. But moust buildings are abadoned.
@@wardasz Chernobyl was the name of the power plant and that part was also considerd Pripyat when it was build Pripyat still has around 600 people and around 200 of them were the ones who lived close to the power plant
The Chernobyl situation was such a depressing and sad moment in history. Not just the deaths and the fact that it left the city in ruins but the fact that Chernobyl was an evolving and forward looking city with high potential. But it caused me to meet one of my best friends. She’s a Ukrainian girl she was born in Chernobyl but this incident caused her to move with her family a small city in Sweden called Gävle. There we meet in school. I helped her with her Swedish and she taught me how to play football/soccer. Her parents died in cancer when she was just fourteen years old and my aunt adopted and took care of her. She moved away to a special university to get better at Football and I hope that one day my friend will become a professional.
The biggest blame for this disaster lies with the senior management of Chernobyl for a few reasons. (1)- Plant director Viktor Bryukhanov was under constant pressure to ensure that Reactor #4 would be finished on schedule so that substantial communist party bonuses could be won. To do so he was forced to use tar [highly flammable] to coat the roof of the reactor. (2)- The Soviet Union’s Atomic Energy Commission did not make aware the fact that the reactors themselves were fatally flawed: they were dangerous to run at lower power levels. (KGB documents showed that from 1979 to 1986 authorities ignored repeated warnings of the danger at Chernobyl.) But the biggest problem is this: (3)- Although Leonid Toptunov is 2nd-in-command for the control room of Chernobyl’s Reactor #4 neither he nor control room foreman Aleksandr Akimov was in charge. Safety test preparations were instead overseen by the plant’s Deputy Chief Engineer Anatoly Dyatlov who gave the order for the test to be only carried out at a power level of 200 megawatts (USSR AEC test regulations STRICTLY set a minimum power level of 700 megawatts for the test) but Dyatlov assumes his position [Chief Engineer Nikolai Fomin was asleep in Pripyat during this critical test.] allows for him to set any parameters as he wishes, even for safety tests. Needless to say; when problems were first spotted, the men did take steps to prevent the disaster. When Akimov noticed the power surge he immediatly did what his training told him to do: hit the emergency shutdown button. (Soviet nuclear reactor emergency shutdown buttons are given the name AZ-5) but again, the USSR AEC hid one tiny fact from the knowledge of plant workers. (4)- The AZ-5 button automatically lowers the boron control rods into the reactor to try and stop the nuclear reaction ASAP, but the power levels shot up hundred-folds after that. This is because the boron control rods themselves are tipped with graphite (same stuff they use for the block that houses the fuel rods) which increases power, NOT reducing it.
Soo.... Why the emergency shutdown did not stop the reaction but instead increasing it? I did read your last sentence but still don't know why the power go up instead of go down?
@@pierreuntel1970 As already mentioned, the control rods were tipped with graphite. Graphite in a nuclear reactor is used as moderators. This is a perfect example why little knowledge is a dangerous thing. We already know control of fission rate is what differentiates nuclear reaction in an atomic bomb and in a nuclear reactor. By the name of it, moderators can be thought of materials that can moderate a reaction. But the thing in reaction process only slow neutrons bombard with atomic nuclei to cause fission. Fast moving neutrons are incapable of causing fission. A moderator slows down neutrons thereby increasing fission reactions in a geometric progression/exponentially. This is the reason why it contributed to a temperature increase of the concrete core wall to a million degrees, blasting the core and setting surrounding areas on fire.
@@JjJj-pc8cv I agree. They could have explained the reason for the explosion much better than they did and you don’t need to be nuclear scientist to understand it.
My both Uncle were firerighter witch were in the firefighter Helicopter above the reactor...well they both are alive and almost healthy excapt a bold head and some lost of theeth
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.?
Krister F yea, then they moved out because authorities said Pripyat was radiated and it would br clear in a few weeks, so they had to move out. But unfortunately the radiation didnt end and no one has lived there
Id absolutely go on a Chernobyl tour. Its very post apocalyptic, nice knowing you can go back to your comfy hotel room after the tour thinking this could be a global event if worse comes to worse.
Aurora Jones you outta thank all of those fire fighters who died trying to put out that fire. If hey hadn’t risked there lives then another explosion would have happened 10x worse then the primary explosion sending debris as far as the Americas
Aurora Jones Anyway, there is also a place to train for survival, and also for me and everyone to know what the world will be like if there is a nuclear war disaster.
This video is just about some layman knowledge. They didnt explain why flooding is a major problem and dumping sand and borax wont stop the melting of the fuel. So yeah, if one is smart is enough to understand the concept of nuclear power, this video is garbage tho
Actually there was a smaller city called Chernobyl (sometimes spelled Chornobyl) within the Chernobyl exclusion zone. It was further away from the actual power plant than Pripyat, hence the approx 690 people who stayed and still actually live there, even though there was an evacuation order. Pripyat is the city that gets the most attention in the story of the Chernobyl disaster because it was closer (like, crazy close) and was evacuated completely, and is extremely unsafe for human habitation.
The safety systems did not fail, in fact they had actually worked very well in preventing an explosion up until they were switched off by the Chief Engineer. The pumps did not fail either, they also were switched off due to them causing the reactor to go into a shutdown state after being left on for too long. The problems began when they switched the reactor back on as they removed "all" of the control rods which is a bit like accelerating your car whilst switching off the brakes. The reactor was heated up too quickly which led to reactor poisoning, this means the reactor was very hot at low output and was out of it's safe operating parameters making it very unstable. The final action that led to the explosion was the attempted emergency shutdown which entails all control rods to be inserted at once to kill the reaction. What the operators were never told is that the rods actually react and flash boil water before they can kill the reaction so the little water left in the reactor was instantly boiled, this meant more steam, more pressure and finally boom which happened in a matter of seconds. Bad design, bad containment, lack of procedures and massive cover ups of defects known by the designers is what caused Chernobyl, it was only a matter of time and it's very important that we are accurate when understanding what actually happened.
its because he has no idea what happened... a lot of his facts arent true. for example that 31 people died to the explosion. in fact it was only 1 guy who was in/near the reactor hall atm and a second guy, who died because of the exposure to high level of ionizing radiation. Noone else died directly in the facility, but rather days/weeks after the incident and not because of the explosion but to the high dose of radiation
@@hdjfhebsn yes and he said kids played at the amusement park. I was never opened to the public. It was supposed to open 4 days after the explosion. Obviously it never opened.
I can’t believe it took me watching the HBO series of Chernobyl to find out there were three people who sacrificed themselves knowing they would die a horrible death to save other people yet most of the world don’t even know of their existence yet we have murders, rapists and other horrible people immortalized in history books and even celebrated
exactly. There live even some old people, old grandmas offered to us their food, even it's forbidden to touch earth, grass, they have their own plants. Offcourse we refused. If u put your atomic/ratio reader near to the ground (concrete, it goes rapidly above 8) but if u put it near the soil...the earth it jumps over 22% which is deadly...but tourist still come. I was once, and never again.
The public (i.e. international media) didn’t find out until Environmental Chemists at Nuclear power plants in Scandinavia started getting odd readings, in which those people contacted a bunch of nearby Nuclear power plant and found out that it was Chernobyl.
Helicopter pilots that made hundreds of trips and hovered directly over the reactor fire. They knew they'd die and voluntered. As few pilots as possible did all the work to cover the reactor in sand and concrete as fast as possible. They are heros.
there's some dark humor about that, when the swedish plant first got the readings they thought they were the cause so they evacuated and ended up outside unprotected from the Chernobyl fallout instead
The most unsafe commercial reactor design. Such water cooled, graphite moderated reactors have a high positive void coefficient (the RBMK, the highest). The (SCRAM) control rods were graphite tipped, therefore when they were placed into the core, to reduce power, they displaced water (with the high neutron absorption cross-section of Hydrogen) and increased moderation. This is what caused the power spike. When the water started to boil the same thing happened, the fission neutrons were still being moderated but the water number density decreased (thereby reducing the absorption of the freshly thermalised neutrons), hence an increase in neutron flux, hence a positive feedback loop and further power spiking. Stupid design. Wasn't even in a secondary containment vessel.
NZAnimeManga pretty much nailed it. Add in some operator error from disabling the automatic control functions and then having an irregular flux distribution due to Xenon equilibrium and subsequent rod pattern adjustments.
The guy even knowingly ignored the limits of the test. What do you think of NaK cooled designs? The reactivity is an issue obviously, but can also self seal in a leak.
The emergency shutdown not only failed, but it caused the explosion. The boron control rods had graphite tips. When the EPS-5 (az-5) was pressed, the graphite tips on the rods were inserted back into the core. The shutdown inserted all the rods (which all had graphite tips) into the core, which caused a MASSIVE and UNSTOPPABLE power surge. It is unknown how high it went but the RBMK designed to operate at 3,200 megawatts, skyrocketed and the final reading was 33,000 megawatts. And that is how an RBMK reactor core explodes.
This video really isn't perfect. It lacks a lot of information (outdated nuclear reactor design, workers were essentially all half asleep because of adjusting to new shift time, etc...) and has a couple of small errors (the back up didn't fail, it was turned off as part of the experiment, etc...). So please do not watch just this video if you are trying to learn more about Chernobyl.
erjamesl I also noticed he spoke of "children playing on the ferris wheel". Never happened. The amusement park was to open for the first time when mild weather arrived.
Exactly. Basically he says nothing about how it happened. The video title should be "what did the accident cause", not "what caused the accident", and I would have never clicked on this video if it was correct.
also wasn’t it because the cooling system failed then all the water became hot steam, bursting the pipes and causing a nuclear meltdown and steam explosion? that’s all I know.
@@Amiaaaaaaaaa Not necessarily. What happened exactly is that when they turned off the Turbine Generator (Which supplies Power to the Main pumps for the coolant) this caused the flow of water coolant to the reactor to decrease. As the Water Coolant flow rate decreased, this had adverse affects on the reactor. The RBMK reactors have a positive void coefficient. What this means, is that when the water coolant flow decreased, steam pockets called "voids" started to form, replacing what should be regular liquid water. As more of these steam pocket "voids" formed, this lead to the reactor becoming less cool, as the coolant is turning into steam. The RBMK reactors had very positive void coefficients, meaning that the more the coolant created voids, the more power the reactor exerted. This created an exponential effect where more and more coolant was being flashed into steam, as the reactor became hotter and hotter. Soon after the technicians noticed this, they "Scrammed" the reactor (this is up to debate - some say it was due to the automatic safety mechanism functioning properly). This forces all control rods (which slow down nuclear fission reactions by absorbing neutrons) into the reactor to slow the rate of reaction. However, due to the design of the reactor, this forced the majority of the remaining excited atoms into the bottom of the reactor by displacing the neutron-absorbing water downward, creating a power spike. Because the control rods were so hot, some of them broke and jammed at only 1/3 of their total length in the reactor, not absorbing enough neutrons thus not slowing down the increasing uncontrollable rate of fission occurring. All of these factors led to a runaway reaction where the core of the reactor heated astronomically high and flashed all of the water eventually creating a steam pressure explosion that blew the 1000-ton biological shield off the top of the reactor, leading to a fire shortly after when the graphite moderators made contact with oxygen and instantly erupted in flames, leading to a INES Scale 7 (the highest) nuclear accident event and the evacuation of Pripyat.
Even the illustrations of the reactor he used are completely wrong. The RBMK at Chernobyl was a graphite moderated reactor that turned the same water used to cool itself into steam for the turbines, and it had no containment structure. What he showed was more like a Babcock & Wilson pressurized water reactor with primary and secondary water loops and a containment structure. That kind of reactor was the one that melted down at Three Mile Island.
Because Ukraine has only existed as a sovereign state for about a century. Before the October Revolution and the Russian/Ukrainian Civil War in 1917, Ukraine existed merely as a region within Russia, thus it was referred to as "The Ukraine". Due to the historical context, calling Ukraine "the Ukraine" tends to piss off Ukrainians, it implies that they still belong to Russia.
i like how the workers at Chernobyl 1986 had state of the art wide screen LCD flat panel monitors that can pivot to vertical orientation. And their OS software supported it.
@@geo3106 So do the rare earth metals used to make wind turbines, solar panels and the batteries required to store that energy for when its not windy or sunny. As usual, the answer is Thorium.
@@odobenus159 For nuclear power plants, uranium, thorium, plutonium, etcetera, is fuel, means it is constantly added for one source of energy to run. Wind turbines and solar panels only require them to build it, not as fuel which is consistently required. Unless they need to build more.
@@geo3106 true it is not renewable but thorium is a waste product that is so plentiful that just 1 average rare earth mine could supply enough thorium in a year to power the world for a year and still have heaps of thorium that would be thrown away due to over supply.. reactors can easily supply the world with power where wind and solar panels can't supply enough power or consistent power for that matter unless we cover the whole planet in them which would cost to much and leave no land for anything else and then theres the massive co2 emittions to make all those wind generators and solar panels and lets not forget the astronomical amount of extra high tention power cables that would have to be built to transport the power to where it's needed.. a solar panel produces so little power it takes around 7 years to recover the amount of power needed to manufacture it in the first place.. all of a sudden nuclear looks millions of time more practical a solution
The elephants foot was a result of the nuclear fuel Uranium-235 (235-U(L)) fuel mixing with concrete, corium and metal. This was a result of the explosion and isn't that important apart from it is a radioactive lava releasing 8,000 roentgen an hour, (lethal dose within 4 minutes), and because of radioactive decay, currently 900 roentgen per hour, (lethal dose within 33 minutes) BTW safe radiation is equivalent to 0.3 roentgen per week.
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.
"Chernobyl" was the name of a village that was on the current grounds of the power plant, which borrowed the name. Pripyat is the name of the river the plant is located on and used for cooling; that was borrowed for the worker town constructed about 4 miles north of the plant.
Awi and that would be great since You wouldnt need to listen to Brain dead teens screaming "cyka blyat xd im so funny right guys" I understand a joke few times, but million times?
In my Chernobyl research, I found a log of events for April 26. These logs suggest that this was no accident, as technicians were instructed, by Soviet officers, to continue testing the reactor even after several safety check faults occurred. The goal of the test was to see if the reactor could output at greater efficiencies. Several warnings were given that something was amiss, and the whole event took place over a 2-4 hour window where the crisis could have been prevented. This was all in an attempt to gain more power at the risk of meltdown. The Soviet scientist knew what was going on but being what Soviet USSR was in the 80's they risked their lives disobeying orders, and also by obeying orders as almost everyone in the plant is dead now due to complications due to radiation exposure. The fallout from the accident was far greater than you portrayed as most atmospheric data i could find suggested that the fallout hit the jet stream and was spread across most of the northern hemisphere within a week. The water runoff was probably the worst as it contaminated the river and ground soil. The river was the primary source of water for the region and had massive impact on everything that was living. The soil contamination effected all plants making them radioactive, this in turn contaminated herbivores, then carnivores. This greatly damaged the ecosystem as radiation is much like Mercury poisoning in fish, where the larger organisms have high concentrations of contamination due to their food source being contaminated builds up in their bodies. This has resulted in very high levels of mutation and cancer for most life in the immediate area, which has come down due to the fact that the mutant and cancerous organisms don't live as long and die then trap the radiation in their bodies and are buried beneath the soil locking the radiation away from other organisms consuming it. Countless livestock lost their lives as farmers could not sell contaminated meat. This level of ecological disaster would not occur again until the Fukushima reactor disaster. Fukushima however was caused by a natural disaster not a man-made one like in Chernobyl.
Patrick Mahoney Yeah the fall out definitely hit parts of the UK. There were areas where livestock couldn't be used for food for years. Also the Soviets kept it quiet initially, only admitting there had been a meltdown when other countries started detecting radiation. I still think it takes the piss that the EU is currently paying a shitload of money to continue to make the area safe. It should be Russia / Ukraine sorting it out, seeing as it was the Soviets that caused the mess in the first place.
"These logs suggest that this was no accident, as technicians were instructed, by Soviet officers, to continue testing the reactor even after several safety check faults occurred. The goal of the test was to see if the reactor could output at greater efficiencies. Several warnings were given that something was amiss, and the whole event took place over a 2-4 hour window where the crisis could have been prevented. This was all in an attempt to gain more power at the risk of meltdown. The Soviet scientist knew what was going on but being what Soviet USSR was in the 80's they risked their lives disobeying orders, and also by obeying orders as almost everyone in the plant is dead now due to complications due to radiation exposure. " Jesus Christ, no it was not and no they aren't. This was a test that should have been preformed before the reactor was brought on line, but because the chiefs of staff would get bonuses they pushed the reactor to be start up without the tests. Emergency systems were shut off, the test was to start during the day but an outage forced the reactor to stay online. When the night crew came on they took over the test, let the reactor fall too low, and against regulations Dyatlov demanded they climb out of the "iodine well" by maxing the systems out (removing all but a couple control rods, also against regulations). This built up heat which all the circulation pumps were turned on to deal with which drained power too fast for the system to handle when the turbines were shut off so less and less water circulated through the reactor. This meant the water was allowed to boil and the fuel to overheat. Gauges read the pressure building at incredible speed till it blew followed by a hydrogen explosion soon after. There was no secret Russian thing going on, it was a test which violated multiple safety procedures There are also scores of previous employees alive, they're still fighting the current Russian and Ukraine governments for compensation to pay for their hospital bills. There's even videos on youtube about this.
"This level of ecological disaster would not occur again until the Fukushima reactor disaster." Wrong, Fukushima absolutely pales in comparison to Chernobyl, don't swallow the conspiracy juice.
Could you guys do a after the explosion part? Talking about the lead that was poured on top and the miners that dug tunnels underneath the reactors to extract the water?
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.?
From what I know, there was a bigger city nearby named Chernobyl and it was named after that because Pripyat was established for the power plant itself? It's just further away from the plant than Pripyat is. I might be mistaken but that's what I think I remember from a documentary
It’s a shame horrible engineering feats of failures like this lead people to despise nuclear power. Opposed to coal, oil, and natural gases, it’s by far the safest reliable power source. Of course solar and other renewables are better but nuclear has far better environmental affects than fossil fuels. (Keep in kind nuclear power plant failures are very rare and only happen in very old, poorly designed facilities)
You’d be surprised to hear that Nuclear is even better than other renewables. The creation of wind turbines and solar panels is very harmful to the environment, and the deaths per TWh is lowest for nuclear at 0.04 deaths (includes the Chernobyl incident).
howard baxter I definitely get that. But also I’m thinking along the terms of future advancements in renewables as well as we increase their efficiency and safety as such. I’m not very knowledgeable of the subject though, so I could be wrong.
I'd like to see some Generation IV ADSRs running on Thorium, but that may never happen because the public has been brainwashed into thinking nuclear power is bad. I wouldn't be surprised if the oil companies were the ones pushing that agenda and spreading misinformation. They do it to this day.
Unfortunately, waste is hard to store and a lot of power plants are reaching the end of their lifespan. We need to figure out how to rework nuclear energy, to make it safer and take up less areas to store. If we can reprocess the waste in a safe way, we may be able to continue its usage sustainably. The only problem is reprocessed Uranium becomes plutonium, which is used in nuclear weapons and is far less stable. But if we can make it safer, the energy output would be astonishing.
There are only 2 people living in Chernobyl, not 19. One is a 80something-year-old woman and the other is a man of about the same age. Nobody is actually allowed to legally live in Chernobyl or Pripjat (the city next to Chernobyl).
Actually, that's where you're wrong. Chernobyl has a population of approximately 690 people, not 2. Now, you are actually kinda right, but people can live in both places, although people aren't supposed to live in Pripyat, as the highly affected areas (and trust me, there are A LOT) really won't be inhabitable for another 20,000 years. Pripyat actually currently has a population of zero, but there are many, many pictures of places there, most of which were taken after the blast.
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.
Here’s a little more in depth of what went down at Chernobyl, hopefully this explains what went on better than what the people at Infographics could make in a video. The morning prior to the explosion, a test was to be conducted to see if the turbines could maintain enough kinetic energy to drive the feed water pumps while the emergency generators kicked in (which typically took around a minute). Reactor 4 was chosen and preparations were being made to conduct the test. The reactor was put at 10 percent power before an order came from Kiev to keep the reactor on for the evening power surge. Though, instead of increasing reactor power back to normal operation, the shift workers kept it at 10 percent, hoping that the next shift would be able to perform the test. They waited and waited until finally, around 10 hours later, the order was received to continue the test. At this point, the reactor had begun to build up Xenon-131* in its core, which builds up if reactivity is kept low for long periods. Xenon absorbs neutrons and prevents the reaction from continuing. This phenomenon is known as “reactor poisoning” and it can drastically reduce the power of a reactor, to a point of possibly being dangerous. In Chernobyl’s case, reactivity decreased 90 percent, meaning Chernobyl was operating at 1 percent power (30 MWs Thermal). In order to increase reactivity to safe levels to perform the test, the Control rods were raised. The fuel rods, now unchecked, began to heat up, which turned the water into the reactor into steam. Steam is bad at moderating neutrons and reactivity stays relatively low. The operators at this point become worried of nuclear meltdown by keeping the rods up for so long, and emergency procedure AZ-5 is initiated. This lowers all control rods into the reactor. These rods are made of boron, however, their tips are not (this is discussed as the design quirk in the control rods in the video). Their tips are made of graphite which increases reactivity. The instant the rods are lowered all remaining water turns to steam which ruptures fuel rod channels. The control rods are now fixed in position and accelerate the reaction even further. Eventually, the pressure in the core bursts the upper biological shield of the reactor, sending it flying. Oxygen rushes in the now exposed core, causing a second explosion that results in a graphite fire. This fire is responsible for the majority of the radiation leak, as the smoke carries radioactive isotopes of Uranium, Plutonium, Iodine and Xenon into the atmosphere. That’s Chernobyl, hope I summed it up okay. E1: Xenon-135*
@ 3:42 the explanation finally begins. You should redo this video using the information from Chernobyl episode 5. The courtroom explanation in the HBO show did a great job of showing why the power levels dropped and why the power surged back up and so fast and exactly why putting the control rods back in accelerated the nuclear reaction.
BradiKal61 yes I did this explanation off of memory of the court room explanation by legasov: The emergency shutdown not only failed, but it caused the explosion. The boron control rods had graphite tips. When the EPS-5 (az-5) was pressed, the graphite tips on the rods were inserted back into the core. The shutdown inserted all the rods (which all had graphite tips) into the core, which caused a MASSIVE and UNSTOPPABLE power surge. It is unknown how high it went but the RBMK designed to operate at 3,200 megawatts, skyrocketed and the final reading was 33,000 megawatts. And that is how an RBMK reactor core explodes.
Being of Ukrainian heritage, it is on my bucket list for sure. However, I will be sure to get medical clearance from my doctor before I go as I do not want to put my health at risk unnecessarily.
That's right, three reactor cores were lost at Fukushima Daiichi in march 2011. As far as I know they haven't officially located any of them, but at least they got reactor 4 and some of the fuel pools under control. Everything in reactor 3 was a complete loss tho, including the spent fuel pool.
Too late, anti-nuclear fear-mongering propaganda has already been drilled into everyone's heads in order to make us continually reliant on fossil fuels
Chernobyl used RBMK nuclear reactors. The control rods are graphite tipped, why? Because its it's cheaper. When the operators pressed AZ-5 to shut down the reactor it inserted all the control rods at once. The graphite caused a significant increase in reactivity and a reactor that was meant to handle 3200 megawatts, increased to 33000 megawatts. This caused the water to superheated and instantly turn to steam. The a.ount of pressure caused the 350 kilo steel rods to jump. Eventually the top blew off and when oxygen was exposed to superheated graphite, it exploded. They had handheld dosimeters that maxed out at 3.6 roentgen. It maxed out. They got a 200 roentgen dosimeter and it completely dried. They eventually got a very powerful one and it also maxed out...at 15000 roentgen. The core at my own guess had to be around 300,000 roentgen. HBO got me hooked on nuclear physics and I haven't slept in six days. Of course I still just have a basic understanding. A very basic understanding. I decided to leave out the parts a out the xenon and how none of the crew was not informed and half didn't even know the test was happening. The computer even recommended to shut down the reactor but the man in charge said it didn't know they were running a test. They still kept the other three reactors going while this happened.
I Remember that the Europe was scared and Specialy here I Sweden and we was first to discover it! And the emergency stop didn’t fail. They turned it off! Under the experiment.
There was 50,000 people lived there the disaster happens on April 26th around 1:34 am . They were doing a safety testing on reactor four you can vist there in the npp unit 4 but you can’t go inside of reactor four
Many of you would like to visit Pripyat and do some sightseeing... Is there any other disaster site on your bucket list?
"50,000 people used to live here, now its a ghost town"
hi a am russian i know about chernobyl (чернобыль) so many i can tell you many interesting things
Yo if I had days to live I'd wanna see the #4 reactor and elephants foot.
@@thebeaniestbeanboys5735 ....
if i had 1 day to live and i was there, i would want to hug the elephants foot
“We all know what happened next.”
No I don’t that’s why I’m here
He said it before
Look up the Zero Hour Chernobyl, this one actually explained all of the problems
Check out the book Midnight in Chernobyl it's a really interesting dive into the USSR and the events leading up to the accident.
Just watch the show
Fallout. The clouds go out far, and the radiation falls down as toxic rain.
“4:18”
Every disaster movie starts with the government ignoring the scientist
And more or less every irl disaster too...
Ugh exactly and in real life too. Even now that's exactly what's happening.
Not even a government party member
In real life too btw
They ignored the scientists and so they paid the price
I can literally count how many times i have been to chernobyl on my hands, 13 times
Nice mutation
Nice! 13 hands can get very useful when needing to hold a lot of stuff :D
@@Mickelraven wait...
It took me a second
Um you might want to get that check 😂😂
Chernobyl: **explodes**
Tourism Company:
*_S T O N K S_*
Fukushima : Nani?
*S T O N K S*
Or
Tourism Companies:
*MONEY MONEY MONEY!*
BakedPotatoYT 😭🤣🤣😭😭🤣😭😭
No no *S* *T* *I* *N* *K*
Who came here after watching the HBO's Chernobyl Trailer.
Abubakar kamara me lol
Normies!
It was in the suggested tab of the teaser
me
Me tovarish
4.6K Dislikes
Not Great, Not Terrible
dyatlov and friends about the dosimeter readings hehehe
no pun intended
7K
6.9k dislike- *Nice*
Dyatlov is still in the toilet
This isn't an informative summary of the actual disaster, but is informative if you're interested in being a tourist.
How so? It exposes how it technically happened.
@@Ultimaweapon971 it only only informs us of the aftermath, not what caused the reactor to explode.
@@yourm8042 it does say how it happened but very poorly
@@yourm8042 did you even watch all of it?
@@Ultimaweapon971 okay i watched that part now, it is still explained poorly tho.
Skip to 3:34 where the actual "What Caused the..." begins
cultclassic999 thanks
Your a life saver
Thank you
4
Start at 00:00 to learn more
"50,000 people used to live here,
Now it's a ghost town"
Yeah?
How many ghosts live there?
yeah it’s full of these comments bro you’re late
I got you
its a game right...........right?
call of duty 4
Cookie captain price!!!
*What Caused The Catastrophic Nuclear Accident In Chernobyl?*
Me, a nuclear physicist for at least a week now: *LIES*
Actually a cherry caused it
The more you know folks ;)
No, it’s *PIES*
Not great, not terrible
We need a new phone.
I understood that reference.
_"There was no nuclear accident at Chernobyl."_ - *Anatoly Dyatlov, 27 April 1986*
The elephant in the room
It was and a horrifying story
Yep it was on 29
No war in ba sing se
Prorussians say that 1) the CIA was behind the disaster and 2) the Fukushima nuclear disaster is far worse but they rule out that the tsunami was the catalizer and not stupidity like Chernobyl
It's 1:23 am 26th April 2021
35 years on.... Remembering those who lost their lives,and those who's lives were changed forever.
Precisely 1:23:45
Chernobyl is not a city... it's Pripyat ...
Captain Marvel both are cities however the reactor was located in Chernobyl, most of the plant workers and their families lived in Pripyat.
@@gooserpooper Chernobyl was the name of the power plant
BOUTH are cities. Chernobyl is old city, when power plant was build it was nearest city to it, so power plant was named after it. Later, they build city Pripyat much closer to power plant, for people working in it. And it quickly become much bigger (16k in Chernobyl, 50k in Pripyat). Today Pripyat is completely abandoned, called "ghost city", while in Chernobyl live around 2k people. But moust buildings are abadoned.
@@wardasz Chernobyl was the name of the power plant and that part was also considerd Pripyat when it was build Pripyat still has around 600 people and around 200 of them were the ones who lived close to the power plant
@@ubisons6161 wrong. Chernobyl was the town and pripyat was the city nearby.
The Chernobyl situation was such a depressing and sad moment in history. Not just the deaths and the fact that it left the city in ruins but the fact that Chernobyl was an evolving and forward looking city with high potential.
But it caused me to meet one of my best friends. She’s a Ukrainian girl she was born in Chernobyl but this incident caused her to move with her family a small city in Sweden called Gävle. There we meet in school. I helped her with her Swedish and she taught me how to play football/soccer.
Her parents died in cancer when she was just fourteen years old and my aunt adopted and took care of her. She moved away to a special university to get better at Football and I hope that one day my friend will become a professional.
Fate is odd and twisted. It is the cause of many bad and good events. I'm happy for you and your friend.
Isn't she at least 37 years old?
The biggest blame for this disaster lies with the senior management of Chernobyl for a few reasons.
(1)- Plant director Viktor Bryukhanov was under constant pressure to ensure that Reactor #4 would be finished on schedule so that substantial communist party bonuses could be won. To do so he was forced to use tar [highly flammable] to coat the roof of the reactor.
(2)- The Soviet Union’s Atomic Energy Commission did not make aware the fact that the reactors themselves were fatally flawed: they were dangerous to run at lower power levels. (KGB documents showed that from 1979 to 1986 authorities ignored repeated warnings of the danger at Chernobyl.)
But the biggest problem is this:
(3)- Although Leonid Toptunov is 2nd-in-command for the control room of Chernobyl’s Reactor #4 neither he nor control room foreman Aleksandr Akimov was in charge. Safety test preparations were instead overseen by the plant’s Deputy Chief Engineer Anatoly Dyatlov who gave the order for the test to be only carried out at a power level of 200 megawatts (USSR AEC test regulations STRICTLY set a minimum power level of 700 megawatts for the test) but Dyatlov assumes his position [Chief Engineer Nikolai Fomin was asleep in Pripyat during this critical test.] allows for him to set any parameters as he wishes, even for safety tests.
Needless to say; when problems were first spotted, the men did take steps to prevent the disaster. When Akimov noticed the power surge he immediatly did what his training told him to do: hit the emergency shutdown button. (Soviet nuclear reactor emergency shutdown buttons are given the name AZ-5) but again, the USSR AEC hid one tiny fact from the knowledge of plant workers.
(4)- The AZ-5 button automatically lowers the boron control rods into the reactor to try and stop the nuclear reaction ASAP, but the power levels shot up hundred-folds after that. This is because the boron control rods themselves are tipped with graphite (same stuff they use for the block that houses the fuel rods) which increases power, NOT reducing it.
Grand Admiral Thrawn so why bother comment it if you didn’t read
agree
That was a very interesting read, appreciated.
Soo.... Why the emergency shutdown did not stop the reaction but instead increasing it? I did read your last sentence but still don't know why the power go up instead of go down?
@@pierreuntel1970 As already mentioned, the control rods were tipped with graphite. Graphite in a nuclear reactor is used as moderators. This is a perfect example why little knowledge is a dangerous thing. We already know control of fission rate is what differentiates nuclear reaction in an atomic bomb and in a nuclear reactor. By the name of it, moderators can be thought of materials that can moderate a reaction. But the thing in reaction process only slow neutrons bombard with atomic nuclei to cause fission. Fast moving neutrons are incapable of causing fission. A moderator slows down neutrons thereby increasing fission reactions in a geometric progression/exponentially. This is the reason why it contributed to a temperature increase of the concrete core wall to a million degrees, blasting the core and setting surrounding areas on fire.
“Look at this place...50 thousand people used to live in this city...now it’s a ghost town...never seen anything like it”
Cpt. MacMillan
That mission where u are Capt price and suited up in ghillie suit,one of the best missions of COD MW series
MW1 and MW2 will forever be legendary 🙌🏼
50 percent of the video is not about what the title says. But rather about boring trivia.
True
to be expected from a channel like this
@@myguyaarav5560 I cannot tell if this is sarcasm or extreme stupidity
Have to get past the 10 minute mark somehow.
Helden Dew the video is 7 minutes long
The rate that you guy's push these out is insane
BradDoesBanter why you here m8
Jack & alex Lester that's true why is he here XD
Going strong!
Too bad it’s poorly done
@@JjJj-pc8cv I agree. They could have explained the reason for the explosion much better than they did and you don’t need to be nuclear scientist to understand it.
"Comrades! He's delusional, take him to the infirmary" 😂😂
Ikr
I can't seem to create even one joke out of this TV Series.
HAHAHAHAAH DYATLOV
You mean gulag.
The HBO miniseries really does an excellent job at explaining everything i was moved at the end it brought me to tears all the suffering and pain...
My grandfather died to this
He got cancer :(
i never met him
My both Uncle were firerighter witch were in the firefighter Helicopter above the reactor...well they both are alive and almost healthy excapt a bold head and some lost of theeth
I went to chernobyl and i są thereactor
I saw reator
My grand grandfather met the same fate.
Lol loser *does take the L
Jk bro hope u ok
Chernobyl wasn't the city. Pripyat was the city for the workers that worked at the Chernobyl powerplant
Krister F *priblyat
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.?
Finally someone noticed. Already thought I am the only one.
It's VΞXZY lol can we get a longitude/lattitude with that
Krister F yea, then they moved out because authorities said Pripyat was radiated and it would br clear in a few weeks, so they had to move out. But unfortunately the radiation didnt end and no one has lived there
Id absolutely go on a Chernobyl tour. Its very post apocalyptic, nice knowing you can go back to your comfy hotel room after the tour thinking this could be a global event if worse comes to worse.
Aurora Jones you outta thank all of those fire fighters who died trying to put out that fire. If hey hadn’t risked there lives then another explosion would have happened 10x worse then the primary explosion sending debris as far as the Americas
Aurora Jones Just make sure you don’t turn into a Feral Ghoul or a Mutant.
Aurora Jones
Anyway, there is also a place to train for survival, and also for me and everyone to know what the world will be like if there is a nuclear war disaster.
A power station meltdown and a nuclear war are very different things.
I'd definatly stray from the tour and try find some of the enriched fuel from reactor, bionerd made a video on finding a peice
Me: *Presses random buttons at my new job
Everyone else working in Chernobyl:
You know people died there,and your making weird jokes
@@senseimadara3791 Just deal with it, theres already tons of jokes about WW1, WW2, 911, and every other conflicts.
@@senseimadara3791 shut
@@amzingdoge2116 I don't have to deal with it idc,it's just sad that memes exist
Dyatlov : "3.6 Roentgen
Not Great, Not Terrible. "
That is only taking like a röntgenphoto
this isnt informative. its a complete jumbled mess and spent half the time talking about tourism. here, have a thumbs down.
Dude watch the video with your eyes and ears open. Except if you are a nuclear scientist / engineer and know more than the narrator.
@@The_Beast_666 gullible fool you are. The video is garbage
It's a mess if you don't pay attention. The video was informative, otherwise it wouldn't explain how the accident happened.
This video is just about some layman knowledge. They didnt explain why flooding is a major problem and dumping sand and borax wont stop the melting of the fuel. So yeah, if one is smart is enough to understand the concept of nuclear power, this video is garbage tho
Actually this was the 3rd part there are 1st part and 2nd part of chernobyl go watch it.
50000 people used to live here.....
But now it's a Ghost town.
MrBaconGuyAYYYYYY
MrBaconGuy I don’t get it
nice
It's also a play on the fact it's a "ghost town," implying that the people that lived there has died and turned into ghosts
no that's not the point, it's an expression for something that is abandoned and it's a cod 4 reference
"That is how an RBMK reactor explodes. Lies" Valery Lagasov.
"The" Ukraine. You just pissed off every Ukrainian lol.
Artoria Pendragon 😃
Lol yes.
Ukrainian did you make thsi account to reply to thois comment
Greg Nolen I didn’t make this account to reply to this comment. I had the name wayyy before I replied to this comment.
Who cares about pissing off fascists
THE CITY ISNT CALLED CHERNOBYL IT IS CALLED PRIPYAT
And the official name of the power plant is Vladimir Ilyich Lenin Nuclear Power Plant
Actually there was a smaller city called Chernobyl (sometimes spelled Chornobyl) within the Chernobyl exclusion zone. It was further away from the actual power plant than Pripyat, hence the approx 690 people who stayed and still actually live there, even though there was an evacuation order. Pripyat is the city that gets the most attention in the story of the Chernobyl disaster because it was closer (like, crazy close) and was evacuated completely, and is extremely unsafe for human habitation.
Well it’s because some of the areas that were close to the city also got rhythm ration so then they called the city of Chernobyl so that’s why
Pripyat was next to chernobyl
50.000 people used to live here, now It's a ghost town.......
It's '50,000 people'
Mason Kelly Is it really lol
😂
Mason Kelly it's 50 000. Not 50,000. 50,000 means 50 people
vtt355 ok boss
whos here after the war started?
The safety systems did not fail, in fact they had actually worked very well in preventing an explosion up until they were switched off by the Chief Engineer. The pumps did not fail either, they also were switched off due to them causing the reactor to go into a shutdown state after being left on for too long. The problems began when they switched the reactor back on as they removed "all" of the control rods which is a bit like accelerating your car whilst switching off the brakes. The reactor was heated up too quickly which led to reactor poisoning, this means the reactor was very hot at low output and was out of it's safe operating parameters making it very unstable. The final action that led to the explosion was the attempted emergency shutdown which entails all control rods to be inserted at once to kill the reaction. What the operators were never told is that the rods actually react and flash boil water before they can kill the reaction so the little water left in the reactor was instantly boiled, this meant more steam, more pressure and finally boom which happened in a matter of seconds. Bad design, bad containment, lack of procedures and massive cover ups of defects known by the designers is what caused Chernobyl, it was only a matter of time and it's very important that we are accurate when understanding what actually happened.
Well i havent read the whole thing but youre about right but the safety systems failed further is almost everything right...
If only they had sufficient vodka stocks in the control room!
Too much talk out of topic. You want tell tf happend go to the point
its because he has no idea what happened... a lot of his facts arent true. for example that 31 people died to the explosion. in fact it was only 1 guy who was in/near the reactor hall atm and a second guy, who died because of the exposure to high level of ionizing radiation. Noone else died directly in the facility, but rather days/weeks after the incident and not because of the explosion but to the high dose of radiation
@@hdjfhebsn yes and he said kids played at the amusement park. I was never opened to the public. It was supposed to open 4 days after the explosion. Obviously it never opened.
Oxelot “dUdE” that’s not what they’re saying
The HBO drama series called Chernobyl is just jaw dropping!!
Ben smith literally...like with vomiting and cancer cells within seconds of exposure
....and depressing.
I wanna see it
You must watch it!!
I can’t believe it took me watching the HBO series of Chernobyl to find out there were three people who sacrificed themselves knowing they would die a horrible death to save other people yet most of the world don’t even know of their existence yet we have murders, rapists and other horrible people immortalized in history books and even celebrated
I heard one guy actually gave his life to open a closed valve in the cooling pool.
Actually, despite everyone's expectations, two of the three divers are still alive today. The other died of a heart attack in 2005.
Explain to me how an RBMK reactor explodes
"I don't have a answer at this moment"
@@Doffyko87 you see ? No answer as i predicted
Like this.........
Ahan Pinto I can’t
Twas unstable and they knew it
Badly researched. Nobody ever played on the ferris wheel. It was due to open on 1 May 1986.
this channel is rife with errors
exactly. There live even some old people, old grandmas offered to us their food, even it's forbidden to touch earth, grass, they have their own plants. Offcourse we refused. If u put your atomic/ratio reader near to the ground (concrete, it goes rapidly above 8) but if u put it near the soil...the earth it jumps over 22% which is deadly...but tourist still come. I was once, and never again.
People did play on it, it was opened early for morale purposes.
They didn't tell people about the danger until two days later and every pilot that flew over the plant died.
The public (i.e. international media) didn’t find out until Environmental Chemists at Nuclear power plants in Scandinavia started getting odd readings, in which those people contacted a bunch of nearby Nuclear power plant and found out that it was Chernobyl.
Helicopter pilots that made hundreds of trips and hovered directly over the reactor fire. They knew they'd die and voluntered. As few pilots as possible did all the work to cover the reactor in sand and concrete as fast as possible. They are heros.
WHOOOOO COMMUNISM
there's some dark humor about that, when the swedish plant first got the readings they thought they were the cause so they evacuated and ended up outside unprotected from the Chernobyl fallout instead
HCUhardcoreUnited, not every one died, many were poisoned with radiation sickness and few died.
Rip to everyone who died they will be remembered they are legends may their soul rest in peace 🙏🙏😭😭
yeah most of were normal people but some were like rlly bad you know, iw outdent call them legends...
@@Deeznuts-rv7by It's sad but I agree that just cause people die that doesn't make them legends
The sad thing is that the nuclear engineers was scared to say something before they died😢😢😢
The rest of Europe: "So, Gorbachev, you wanna tell us why all this radiation is coming at us from your direction?"
The most unsafe commercial reactor design. Such water cooled, graphite moderated reactors have a high positive void coefficient (the RBMK, the highest). The (SCRAM) control rods were graphite tipped, therefore when they were placed into the core, to reduce power, they displaced water (with the high neutron absorption cross-section of Hydrogen) and increased moderation. This is what caused the power spike. When the water started to boil the same thing happened, the fission neutrons were still being moderated but the water number density decreased (thereby reducing the absorption of the freshly thermalised neutrons), hence an increase in neutron flux, hence a positive feedback loop and further power spiking. Stupid design. Wasn't even in a secondary containment vessel.
NZAnimeManga pretty much nailed it. Add in some operator error from disabling the automatic control functions and then having an irregular flux distribution due to Xenon equilibrium and subsequent rod pattern adjustments.
The guy even knowingly ignored the limits of the test. What do you think of NaK cooled designs? The reactivity is an issue obviously, but can also self seal in a leak.
I Could totally understand what you just said
Umm, is that how you surpass the limit to become ascended Saiyan?
F. A. N 21 by the looks of it, he achieved this by staying in school
The emergency shutdown not only failed, but it caused the explosion. The boron control rods had graphite tips. When the EPS-5 (az-5) was pressed, the graphite tips on the rods were inserted back into the core. The shutdown inserted all the rods (which all had graphite tips) into the core, which caused a MASSIVE and UNSTOPPABLE power surge. It is unknown how high it went but the RBMK designed to operate at 3,200 megawatts, skyrocketed and the final reading was 33,000 megawatts.
And that is how an RBMK reactor core explodes.
“50,000 people used to live here, now it’s a ghost town”
32 years ago... Time flies!
Stupid capitalists has sabotaged our great nuclear power plant!
Polski Obywatel Stfu communist polack get a life and adopt an ideology that uses logic
Wow relax there Edge lord, not sure what have gotten into you but "Polacks aka poles" fucking hate communism. This guy speaks for himself
So does radiation
not really
We all know those gopniks inside were busy dancing to hardbass until one blyat dropped a bottle of vodka on one of the machine
ArviGaming "Ivan you idiot!"
Vadim blyat!!
Get outta ´ere, stalker! Cheeki breeki, blyat!
lmao
Theres always that one blyat who always does dumb stuff all the time
This video really isn't perfect. It lacks a lot of information (outdated nuclear reactor design, workers were essentially all half asleep because of adjusting to new shift time, etc...) and has a couple of small errors (the back up didn't fail, it was turned off as part of the experiment, etc...). So please do not watch just this video if you are trying to learn more about Chernobyl.
And that he sayd it was an a steam explosion, which is correct but, showed a nuclear *NUCLEAR* explosion
erjamesl
I also noticed he spoke of "children playing on the ferris wheel".
Never happened. The amusement park was to open for the first time when mild weather arrived.
Exactly. Basically he says nothing about how it happened. The video title should be "what did the accident cause", not "what caused the accident", and I would have never clicked on this video if it was correct.
also wasn’t it because the cooling system failed then all the water became hot steam, bursting the pipes and causing a nuclear meltdown and steam explosion? that’s all I know.
@@Amiaaaaaaaaa Not necessarily. What happened exactly is that when they turned off the Turbine Generator (Which supplies Power to the Main pumps for the coolant) this caused the flow of water coolant to the reactor to decrease. As the Water Coolant flow rate decreased, this had adverse affects on the reactor.
The RBMK reactors have a positive void coefficient. What this means, is that when the water coolant flow decreased, steam pockets called "voids" started to form, replacing what should be regular liquid water. As more of these steam pocket "voids" formed, this lead to the reactor becoming less cool, as the coolant is turning into steam. The RBMK reactors had very positive void coefficients, meaning that the more the coolant created voids, the more power the reactor exerted.
This created an exponential effect where more and more coolant was being flashed into steam, as the reactor became hotter and hotter. Soon after the technicians noticed this, they "Scrammed" the reactor (this is up to debate - some say it was due to the automatic safety mechanism functioning properly). This forces all control rods (which slow down nuclear fission reactions by absorbing neutrons) into the reactor to slow the rate of reaction. However, due to the design of the reactor, this forced the majority of the remaining excited atoms into the bottom of the reactor by displacing the neutron-absorbing water downward, creating a power spike. Because the control rods were so hot, some of them broke and jammed at only 1/3 of their total length in the reactor, not absorbing enough neutrons thus not slowing down the increasing uncontrollable rate of fission occurring.
All of these factors led to a runaway reaction where the core of the reactor heated astronomically high and flashed all of the water eventually creating a steam pressure explosion that blew the 1000-ton biological shield off the top of the reactor, leading to a fire shortly after when the graphite moderators made contact with oxygen and instantly erupted in flames, leading to a INES Scale 7 (the highest) nuclear accident event and the evacuation of Pripyat.
I just remembered why I unsubscribed...
you almost never check crucial information and you end up being completely wrong.
Yeah just boring trivia
imma stick with In a nutshell from now on..
Even the illustrations of the reactor he used are completely wrong. The RBMK at Chernobyl was a graphite moderated reactor that turned the same water used to cool itself into steam for the turbines, and it had no containment structure. What he showed was more like a Babcock & Wilson pressurized water reactor with primary and secondary water loops and a containment structure. That kind of reactor was the one that melted down at Three Mile Island.
@@chrismarek7864 I will never understand but okay
Why is Ukraine called 'The Ukraine'
The Russia
The Cuba
The Romania
When people say “The Ukraine” they’re probably referring to the region.
Because Ukraine has only existed as a sovereign state for about a century. Before the October Revolution and the Russian/Ukrainian Civil War in 1917, Ukraine existed merely as a region within Russia, thus it was referred to as "The Ukraine". Due to the historical context, calling Ukraine "the Ukraine" tends to piss off Ukrainians, it implies that they still belong to Russia.
no one days im going to UK they say the UK i guess its the same
@Bailey Pate - are you romanian?
If i say the philippines would the sentence sound correct
You tuber: “14,000 people used to live here.”
Captain MacMillan: “50,000 people used to live here.”
I’ll believe the captain over some pleb anytime
It was different town Pripyat
He was thinking about Chornobyl, it was someting between big village and small town located south of Pripyat which was a city with around 40.000
Believe confusion is over two different locations, Chernobyl and Pripyat. One was a city one was a town and power plant.
best i can do is 5
He’s delusional take him to the infirmary
Who's here after watching the HBO show on Chernobyl
Come up with original comment before commenting for likes
Meh
Nice to know that Indians watch this show too
Me
I saw
i like how the workers at Chernobyl 1986 had state of the art wide screen LCD flat panel monitors that can pivot to vertical orientation. And their OS software supported it.
S.T.A.L.K.E.R Intensifies
* Cheeki Breeki Intensifies *
CaptainRyanX but which one? shadow of Chernobyl? maybe clear sky, or perhaps call of Pripyat...
Finally found you
"Go Green"
Nuclear energy is one of the greenest energies on the planet.
It is. It’s like airplanes, incredibly safe and it’s renewable. Just... like with airplanes, when something goes wrong,
*IT GOES WRONG*
@@peter_piper3004 It may not have a carbon footprint, but who told you that it is renewable. Nuclear fuel comes from mines.
@@geo3106 So do the rare earth metals used to make wind turbines, solar panels and the batteries required to store that energy for when its not windy or sunny.
As usual, the answer is Thorium.
@@odobenus159 For nuclear power plants, uranium, thorium, plutonium, etcetera, is fuel, means it is constantly added for one source of energy to run. Wind turbines and solar panels only require them to build it, not as fuel which is consistently required. Unless they need to build more.
@@geo3106 true it is not renewable but thorium is a waste product that is so plentiful that just 1 average rare earth mine could supply enough thorium in a year to power the world for a year and still have heaps of thorium that would be thrown away due to over supply.. reactors can easily supply the world with power where wind and solar panels can't supply enough power or consistent power for that matter unless we cover the whole planet in them which would cost to much and leave no land for anything else and then theres the massive co2 emittions to make all those wind generators and solar panels and lets not forget the astronomical amount of extra high tention power cables that would have to be built to transport the power to where it's needed.. a solar panel produces so little power it takes around 7 years to recover the amount of power needed to manufacture it in the first place.. all of a sudden nuclear looks millions of time more practical a solution
Your diagram shows a containment building which was one of the flaws in the Chernobyl plant as it did not have one
God who cares
@@jasonclarke6981 What do you mean?
@@jasonclarke6981 I care.
@@kayeosguilt7707 exactly
@@jasonclarke6981 This Vid is FULL of misinformation! And yes i do care when lies are sold as truth!
He didnt mention about the "Elephants Foot" That has lived since then and most likely will live on forever!
The elephants foot was a result of the nuclear fuel Uranium-235 (235-U(L)) fuel mixing with concrete, corium and metal. This was a result of the explosion and isn't that important apart from it is a radioactive lava releasing 8,000 roentgen an hour, (lethal dose within 4 minutes), and because of radioactive decay, currently 900 roentgen per hour, (lethal dose within 33 minutes) BTW safe radiation is equivalent to 0.3 roentgen per week.
This video is absolutely littered with misinformation.
Indeed, a lot of uninformed and false information. Terrible video
The Infographics Show or Bullshittery In Every Video
Yeah it's pretty inaccurate
Prevent the spread of misinformation! (followed by a giant Soviet round of applause)
“Cut the phone lines.”
M A S S I V E S T A N D I N G O V A T I O N
Chernobyl was not the city, it was the name of the plant. The city was Prypyat
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.
GameSZ renamed to Chernobyl, though I am not sure when it was renamed. probably after completion of reactor no.2 or 4
GameSZ thank you somebody else knows that too! It's understandable since they don't mention it here though lol
Thanks
"Chernobyl" was the name of a village that was on the current grounds of the power plant, which borrowed the name. Pripyat is the name of the river the plant is located on and used for cooling; that was borrowed for the worker town constructed about 4 miles north of the plant.
Without Chernobyl there would be no CHeeki Breeki
Awi and that would be great since You wouldnt need to listen to Brain dead teens screaming "cyka blyat xd im so funny right guys" I understand a joke few times, but million times?
What has Cheeki Breeki to do with cyka Bluat? Its totally diferent things. Wow
I know but still, they kind of annoy me, even though Im half slavic.
It's VΞXZY and? Iam full slavic and i dont care its juat a curse like kurva, pice ...
It's VΞXZY you are so stupid and ignorant kurva is in slovak 😂😂 iam done
Anyone else worried about Russia against ukraine
No
I'm All Ghillied Up, anyone else?
And then you got shot and I've had to carry you 😑
“Oi Suzie!”
@@benh735”That’s how it’s done”
Do a video about Chernobyl after the meltdown. Side effects of both humans, animals and the land.
Chernobyl on HBO that mad a show about it
Anyone here from February 24,2022?
hey!
You sound waaaaayyyy too cheerful for this video
yeah, pretty disgusting
Unemphatic
But it's funny
The tone is okay for this video...you're just being way too much sensitive
SuperThischannel snowflakes
In my Chernobyl research, I found a log of events for April 26. These logs suggest that this was no accident, as technicians were instructed, by Soviet officers, to continue testing the reactor even after several safety check faults occurred. The goal of the test was to see if the reactor could output at greater efficiencies. Several warnings were given that something was amiss, and the whole event took place over a 2-4 hour window where the crisis could have been prevented. This was all in an attempt to gain more power at the risk of meltdown. The Soviet scientist knew what was going on but being what Soviet USSR was in the 80's they risked their lives disobeying orders, and also by obeying orders as almost everyone in the plant is dead now due to complications due to radiation exposure.
The fallout from the accident was far greater than you portrayed as most atmospheric data i could find suggested that the fallout hit the jet stream and was spread across most of the northern hemisphere within a week. The water runoff was probably the worst as it contaminated the river and ground soil. The river was the primary source of water for the region and had massive impact on everything that was living. The soil contamination effected all plants making them radioactive, this in turn contaminated herbivores, then carnivores. This greatly damaged the ecosystem as radiation is much like Mercury poisoning in fish, where the larger organisms have high concentrations of contamination due to their food source being contaminated builds up in their bodies. This has resulted in very high levels of mutation and cancer for most life in the immediate area, which has come down due to the fact that the mutant and cancerous organisms don't live as long and die then trap the radiation in their bodies and are buried beneath the soil locking the radiation away from other organisms consuming it. Countless livestock lost their lives as farmers could not sell contaminated meat. This level of ecological disaster would not occur again until the Fukushima reactor disaster. Fukushima however was caused by a natural disaster not a man-made one like in Chernobyl.
Patrick Mahoney Yeah the fall out definitely hit parts of the UK. There were areas where livestock couldn't be used for food for years. Also the Soviets kept it quiet initially, only admitting there had been a meltdown when other countries started detecting radiation. I still think it takes the piss that the EU is currently paying a shitload of money to continue to make the area safe. It should be Russia / Ukraine sorting it out, seeing as it was the Soviets that caused the mess in the first place.
"These logs suggest that this was no accident, as technicians were instructed, by Soviet officers, to continue testing the reactor even after several safety check faults occurred. The goal of the test was to see if the reactor could output at greater efficiencies. Several warnings were given that something was amiss, and the whole event took place over a 2-4 hour window where the crisis could have been prevented. This was all in an attempt to gain more power at the risk of meltdown. The Soviet scientist knew what was going on but being what Soviet USSR was in the 80's they risked their lives disobeying orders, and also by obeying orders as almost everyone in the plant is dead now due to complications due to radiation exposure. "
Jesus Christ, no it was not and no they aren't. This was a test that should have been preformed before the reactor was brought on line, but because the chiefs of staff would get bonuses they pushed the reactor to be start up without the tests. Emergency systems were shut off, the test was to start during the day but an outage forced the reactor to stay online. When the night crew came on they took over the test, let the reactor fall too low, and against regulations Dyatlov demanded they climb out of the "iodine well" by maxing the systems out (removing all but a couple control rods, also against regulations). This built up heat which all the circulation pumps were turned on to deal with which drained power too fast for the system to handle when the turbines were shut off so less and less water circulated through the reactor. This meant the water was allowed to boil and the fuel to overheat. Gauges read the pressure building at incredible speed till it blew followed by a hydrogen explosion soon after.
There was no secret Russian thing going on, it was a test which violated multiple safety procedures
There are also scores of previous employees alive, they're still fighting the current Russian and Ukraine governments for compensation to pay for their hospital bills. There's even videos on youtube about this.
"This level of ecological disaster would not occur again until the Fukushima reactor disaster." Wrong, Fukushima absolutely pales in comparison to Chernobyl, don't swallow the conspiracy juice.
well you didn't gave us any links where did you find info so i have no idea if i should trust you (but i know what really happened)
stellvia hoenheim nah Stalker is better
*S.T.A.L.K.E.R*
Shadow of Cherno is the best
Bro Body Join duty
I'm gonna play it sooner or later
kill strelok
Cheeki Breeki
If I am in Chernobyl now, I will be like "This is where Legasov and shcherbina were standing and watched the reactor burning 30 years ago"
What happens when you mix communism, and uranium?
Chernobyl
Death is a preferable alternative to communism.
that's true, it always happens when I try it
Not vibranium.
@@realamerican3282 СУКАААААА
Uranium + K = Ukranium
Hey try to watch HBO’s CHERNOBYL! They explained it clearly and factual. Must watch!
the bullet analogy is still one of the best explanations of radiation
@@seannotconnery8191 true that
It's a great show that explains nuclear radiation to dummies.
Gleison Bancolita i don’t usually like shows like that but even I got hooked on it. Factual and interesting without being over the top dramatic
@案でっそうぃっぃあ emmm. What?
The people working at Chernobyl would not be eating icecream
Could you guys do a after the explosion part? Talking about the lead that was poured on top and the miners that dug tunnels underneath the reactors to extract the water?
That is MUCH MORE complicated and i think that they need to do like and 30 minutes explanation for that so i think no they will not
The power didnt surge to 100%, it surged to 1000%. Sick overclock but it lasted like a second.
cHeCh. ReP
Can we get an “F” in the chat for Pripyat
U
F
F
F
U
Chernobyl is the name of the Nuclear Plant, not the actual town-The name of the town that surrounds the plant is Pripyat, Ukraine
TmanYT i know
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.?
From what I know, there was a bigger city nearby named Chernobyl and it was named after that because Pripyat was established for the power plant itself? It's just further away from the plant than Pripyat is. I might be mistaken but that's what I think I remember from a documentary
[ANONYMOUS] So i should read from misleading sources then?
then tell me what website is not misleading. tell me
RIP Paul Ritter, the actor of Anatoly Dyatlov. 27, 1986, a
April. “There is no graphite, the core is still here.”
“Get out of here Stalker!”
They made Fallout 4 into a real thing
lol
@Andrew 123 That's just what Vault-Tec wants you to think
More like 76 lol
its spelled STALKER.
69 likes congrats
It’s a shame horrible engineering feats of failures like this lead people to despise nuclear power. Opposed to coal, oil, and natural gases, it’s by far the safest reliable power source. Of course solar and other renewables are better but nuclear has far better environmental affects than fossil fuels. (Keep in kind nuclear power plant failures are very rare and only happen in very old, poorly designed facilities)
You’d be surprised to hear that Nuclear is even better than other renewables. The creation of wind turbines and solar panels is very harmful to the environment, and the deaths per TWh is lowest for nuclear at 0.04 deaths (includes the Chernobyl incident).
howard baxter I definitely get that. But also I’m thinking along the terms of future advancements in renewables as well as we increase their efficiency and safety as such. I’m not very knowledgeable of the subject though, so I could be wrong.
I'd like to see some Generation IV ADSRs running on Thorium, but that may never happen because the public has been brainwashed into thinking nuclear power is bad. I wouldn't be surprised if the oil companies were the ones pushing that agenda and spreading misinformation. They do it to this day.
FINALLY PEOPLE WITH BRAINS
Unfortunately, waste is hard to store and a lot of power plants are reaching the end of their lifespan. We need to figure out how to rework nuclear energy, to make it safer and take up less areas to store. If we can reprocess the waste in a safe way, we may be able to continue its usage sustainably. The only problem is reprocessed Uranium becomes plutonium, which is used in nuclear weapons and is far less stable. But if we can make it safer, the energy output would be astonishing.
Well this is gonna be interesting in the very near future… And the accuracy of “who would win between the EU and Russia” chilling ….
There are only 2 people living in Chernobyl, not 19. One is a 80something-year-old woman and the other is a man of about the same age. Nobody is actually allowed to legally live in Chernobyl or Pripjat (the city next to Chernobyl).
As it's unrecorded as its restricted there are probs more living in Pripyat
There are over 600 people in Chernobyl, it is Pripyat that is desolate because because adjacent to the NPP it took a lot more damage.
Actually, that's where you're wrong. Chernobyl has a population of approximately 690 people, not 2. Now, you are actually kinda right, but people can live in both places, although people aren't supposed to live in Pripyat, as the highly affected areas (and trust me, there are A LOT) really won't be inhabitable for another 20,000 years. Pripyat actually currently has a population of zero, but there are many, many pictures of places there, most of which were taken after the blast.
"50,000 people used to live here.. now it's a ghost town"
Chernobyl is the nuclear plant itself and the city that you are talking about in video is Prypyat.
Chernobyl, is a city in the restricted Chernobyl Exclusion Zone situated in the Ivankiv Raion of northern Kiev Oblast, near Ukraine's border with Belarus. Chernobyl is about 90 kilometres (56 mi) northeast of Kiev, and approximately 140 kilometres (87 mi) southwest of the Belarusian city of Gomel and 16 km from Ukraines border with Belarus. The city was the administrative center of Chernobyl Raion (district) from 1923 until it was disestablished in 1988. Before its evacuation, the city had about 14,000 residents.[1] As of 2017, the city has a population of 690. + the plants name is ''V.I. Lenin nuclear power station'''.
You stupid capitalist!
Me? Oh please...
well why would he (infographic show) speak about Chernobyl(city)
PRIBLYAT
Here’s a little more in depth of what went down at Chernobyl, hopefully this explains what went on better than what the people at Infographics could make in a video.
The morning prior to the explosion, a test was to be conducted to see if the turbines could maintain enough kinetic energy to drive the feed water pumps while the emergency generators kicked in (which typically took around a minute). Reactor 4 was chosen and preparations were being made to conduct the test. The reactor was put at 10 percent power before an order came from Kiev to keep the reactor on for the evening power surge. Though, instead of increasing reactor power back to normal operation, the shift workers kept it at 10 percent, hoping that the next shift would be able to perform the test. They waited and waited until finally, around 10 hours later, the order was received to continue the test.
At this point, the reactor had begun to build up Xenon-131* in its core, which builds up if reactivity is kept low for long periods. Xenon absorbs neutrons and prevents the reaction from continuing. This phenomenon is known as “reactor poisoning” and it can drastically reduce the power of a reactor, to a point of possibly being dangerous. In Chernobyl’s case, reactivity decreased 90 percent, meaning Chernobyl was operating at 1 percent power (30 MWs Thermal). In order to increase reactivity to safe levels to perform the test, the Control rods were raised. The fuel rods, now unchecked, began to heat up, which turned the water into the reactor into steam. Steam is bad at moderating neutrons and reactivity stays relatively low. The operators at this point become worried of nuclear meltdown by keeping the rods up for so long, and emergency procedure AZ-5 is initiated. This lowers all control rods into the reactor.
These rods are made of boron, however, their tips are not (this is discussed as the design quirk in the control rods in the video). Their tips are made of graphite which increases reactivity. The instant the rods are lowered all remaining water turns to steam which ruptures fuel rod channels. The control rods are now fixed in position and accelerate the reaction even further. Eventually, the pressure in the core bursts the upper biological shield of the reactor, sending it flying. Oxygen rushes in the now exposed core, causing a second explosion that results in a graphite fire. This fire is responsible for the majority of the radiation leak, as the smoke carries radioactive isotopes of Uranium, Plutonium, Iodine and Xenon into the atmosphere.
That’s Chernobyl, hope I summed it up okay.
E1: Xenon-135*
can I trust you, anti social moth? where is the source?
@ 3:42 the explanation finally begins. You should redo this video using the information from Chernobyl episode 5.
The courtroom explanation in the HBO show did a great job of showing why the power levels dropped and why the power surged back up and so fast and exactly why putting the control rods back in accelerated the nuclear reaction.
BradiKal61 yes I did this explanation off of memory of the court room explanation by legasov:
The emergency shutdown not only failed, but it caused the explosion. The boron control rods had graphite tips. When the EPS-5 (az-5) was pressed, the graphite tips on the rods were inserted back into the core. The shutdown inserted all the rods (which all had graphite tips) into the core, which caused a MASSIVE and UNSTOPPABLE power surge. It is unknown how high it went but the RBMK designed to operate at 3,200 megawatts, skyrocketed and the final reading was 33,000 megawatts.
And that is how an RBMK reactor core explodes.
Skip to 3:44 for the explanation
Being of Ukrainian heritage, it is on my bucket list for sure. However, I will be sure to get medical clearance from my doctor before I go as I do not want to put my health at risk unnecessarily.
Most American comment I’ve ever witnessed
What about him seemed American? I assumed he was European
Zsolt Most of the area is safe up to 5 consecutive days then after that its best if you leave after 5 days
Your talking about Pripyat, which is 1km from reactor number 4, the town of Chernobyl was approximately 13 km from reactor number 4
The new generation: Who’s here after watching the new movie trailer
The older generation: “50,000 people used to live here, now it’s a ghost town”
It happened three times in Japan just seven years ago.
Dannie Jensen 3?
That's right, three reactor cores were lost at Fukushima Daiichi in march 2011. As far as I know they haven't officially located any of them, but at least they got reactor 4 and some of the fuel pools under control. Everything in reactor 3 was a complete loss tho, including the spent fuel pool.
Dannie Jensen with lost you mean Lost in the Ocean or Lost as Made unfuctional?
Three reactors and at least one fuel pool are now part of the environment.
IRONIE INCOMMING did you not know about this?
Hopefully something like this never happens again.
Fukushima saids: "hold my beer"
"hold my chopsticks"
I'll watch basically anything involving the Chernobyl disaster. My new favorite is the HBO special.
Chernobyl was not the name of the city,It was the name of the nuclear power plant,the name of the city is Pripyat.
You are wrong.
@@MisterChernobyl no.
@@fubbypeets7058 yes
@@MisterChernobyl the way she spelt it was wrong but she's 100% correct
@@auggie1.0 Wait what
Nuclear is green FYI as in no carbon pollution and with proper research, we can use the waste material from older plants to fuel the newer plants.
Too late, anti-nuclear fear-mongering propaganda has already been drilled into everyone's heads in order to make us continually reliant on fossil fuels
Chernobyl used RBMK nuclear reactors. The control rods are graphite tipped, why? Because its it's cheaper. When the operators pressed AZ-5 to shut down the reactor it inserted all the control rods at once. The graphite caused a significant increase in reactivity and a reactor that was meant to handle 3200 megawatts, increased to 33000 megawatts. This caused the water to superheated and instantly turn to steam. The a.ount of pressure caused the 350 kilo steel rods to jump. Eventually the top blew off and when oxygen was exposed to superheated graphite, it exploded. They had handheld dosimeters that maxed out at 3.6 roentgen. It maxed out. They got a 200 roentgen dosimeter and it completely dried. They eventually got a very powerful one and it also maxed out...at 15000 roentgen. The core at my own guess had to be around 300,000 roentgen. HBO got me hooked on nuclear physics and I haven't slept in six days. Of course I still just have a basic understanding. A very basic understanding. I decided to leave out the parts a out the xenon and how none of the crew was not informed and half didn't even know the test was happening. The computer even recommended to shut down the reactor but the man in charge said it didn't know they were running a test. They still kept the other three reactors going while this happened.
I Remember that the Europe was scared and Specialy here I Sweden and we was first to discover it! And the emergency stop didn’t fail. They turned it off! Under the experiment.
all our bunnies and chickens died that year. im from slovakia btw. and we havent been warned either.
Yeah the automatic protection systems were turned off.
Explain to me how an RBMK reactor works
lol
I like that.
or I say to that soldiers that they will throw you from helicopter
You mean how the RBMK reactor explodes ?
Sagar Jangam You’d have to understand how it works first.
How did I find this?
First of all, the youtube algorithm
top gear
sup fellow nine year old
There was 50,000 people lived there the disaster happens on April 26th around 1:34 am . They were doing a safety testing on reactor four you can vist there in the npp unit 4 but you can’t go inside of reactor four
Who came here from Chernobyl HBO Series?
me
me... and this amount of misinformation gives me a headache
A subatomic atom particle sent me here