The number 3 one (Deepwater Horizon) affected my town here in Florida panhandle. I remember it. Oil-soaked birds, turtles, fish, etc. ALL along the beach. Oil balls still being recovered occasionally. The dispersant they used only got Oil off the surface (made it sink) so the full extent of Oil damage isn't truly known.
It's still leaking now isn't it? I heard it was capped but not sufficiently, but was sealed to "acceptable" levels of leakage by the company which is completely unacceptable in reality.
@@DStead2239 they claim it is no longer leaking but people here do not believe it. We are still finding areas of beaches with tarballs. Boaters are pulling up chunks of tarballs that clung to the coagulation and dispersants they used and sank in the ocean. It's still affecting us here that's for sure. ANY level is not acceptable.
I actually was just hearing the company did a crappy job cleaning up that oil spill and that there are still wildlife who are displaced from their habitat and that it isn’t rare to find wildlife with oil on itself.
2020 was all about survival with many achievements not met but you have to be ready for the future and it begins right now by making a move to achieve your goals…If you have been saving and it’s not really getting you to were you want to be, then invest that money today for a better life tomorrow. If you can’t fly, run, if you can’t run walk, if you can’t walk crawl but just try and move to achieving your goals..
I think this pandemic has taught people the importance of multiple streams of income unfortunately having a job doesn’t mean security rather having different investments is the real deal… So l really appreciate your transparency
@@williamsjohn5785 Age isn’t a barrier in making millions, when you utilize all necessary opportunities you’ll see yourself making huge profits after a successful business, I like where good investment are talked about.
How does this whole crypto thing work, I’m interested in it and I’m willing and ready to invest heavily in it but I’m going to need an assistant from any trusted and productive professional
People think Mars is going to be like Dune, but it won't be. We live on the most astonishing, beautiful, varied and incredible place in the universe, I can't imagine ever going anywhere else! I want to explore here!!!
@@sjamescharlton It's TRUE to me. This is my heaven. I don't care about anything else because I love it here so much. Of course there are better places somewhere, for someone else, but not for me. I sat on the beach on the isle of st. John, watching a thunderstorm blow in, rocking the boats in the bay, then it passed, the night was unbelievably beautiful, it was like a dream. I never wanted to be anywhere else. When you find your home, it's good to know it.
@@christineparis5607 Friend, Earth is a cage. We live on a world that is killing us, overpopulating and burning. Storms and vast oceans, unknown frontiers await us in space. Earth is only the first step, the whole galaxy awaits.
If you had lived your whole life in a cave, emerging into Death Valley would seem like Paradise. Earth is beautiful but deadly. Wonderful landscapes but deadly thunderstorms. Amazing animals, and birds, but deadly predators and fatal viruses. I'm sure there are far better, and far worse planetary environments out there.
Cool video but disappointed that the Tacoma Narrows Bridge collapse didn't make it onto this video. The Millennium Bridge swaying 3 inches side to side has nothing on "Galloping Gertie" which collapsed in 1940 after only being open for four months. Plenty of videos showing just how drastically the bridge was swaying not just side to side but also up and down at the same time. It was one of the longest suspension bridges at the time and the entire center section looked like waves in the ocean before completely collapsing into Puget Sound below.
I've seen at least 20 videos over the years, probably more, telling the story of Galloping Gertie. Most of these were new to me, which I appreciated very much. To my way of thinking, Gertie is old, old, old news and there is nothing new to tell about the incident.
The Lotus building *was* built on solid ground, but an underground parking garage was dug out later from beneath it, and with the pile-up of that dirt next to the building the entire support base was compromised.
I worked at the Mall of America a few years after it opened and they had similar problems with their Aquarium. It leaked into our warehouse at least once.
I had one of those pintos. Mine was a 77, and by then, they had fixed it. All they did, was put a piece of nylon or white plastic, between the rear end housing, and the gas tank. That's all it needed, and it worked. Car kind of got a bad rap for something stupid.it really wasn't that bad of a car.
The engineering mistake of the pinto was to avoid a few dollars per car in manufacturing costs by not improving safety voluntarily ,even when they were negotiating minimum safety standards for future models. The accusation is that they said they were doing the best they can eg eg when negotiating the test standards , but this talk was in public domain so its like a promise to the buyer. Other car models may be been doing the best they can .. or at least they didnt admit to knowingly avoiding a simple cheap no-side effects improvement....
The Challenger is a horrible event caused by a mistake. I knew .Sharon Christa McAuliffe. She was my friends aunt. My whole school knew her. It was such a horrible day, and unnecessary deaths. I will never forget that day. My whole school closed for 3 days after that.
I can't help but feel for Ms. McAuliffe's students, who no doubt watched the rocket launch, and in turn witnessed the demise of their beloved teacher. If I were a kid in that situation, I don't think I would ever get over something like that. It's beyond traumatic.
@@Hunter225 I still remember... Was starting 3rd period Biology when the news was released. The teacher was a jokester, and came in saying the shuttle had exploded. I said "thats not funny", but minutes later we were able to see it on a tv he brought in. Seeing it brought shock and a sudden queasiness in my stomach. A sad moment for everyone...
Millennium Bridge: so I was in London & visiting the Tate Modern the day the bridge opened. It was way too crowded, but we resolved to cross the next day. We were in line. People were crossing. Then, with no explanation, they closed it. We were hugely disappointed. There had been so much hype. Only once back in California did we learn the reason behind all this. But, today, if you visit St. Paul's, as you must, then cross this bridge and go to the Tate Modern.
One of the issues with the Chernobyl RBMK reactors, was that the RBMK designs, while generally very safe, have a positive void coefficient in their design. Basically, the more "voids", IE bubbles in the coolant, in this case water, the faster the reaction, the more heat, etc. This, combined with a cutoff of the water coolant, caused a massive feedback loop and overheating. US reactors, by and large, have a negative void coefficient, whereby the more voids, the less reactive the plant. There are other safeties in place for both, of course, and several RBMK reactors have been operating successfully for decades. I have, again, way oversimplified. i just wanted to share a little something I knew.
Its not true that positive void coefficients can be made safe. The problem is that if parts of the reactor core is ever melted, then the coolant pipe could quite easily be blocked,and rods stuck, or rods moved, to a bad arrangement. ..so it must be assumed that the coolant water will be boiled away. At fukishima, the boiling of the cooling water only resulted in minimal melting of rods.
@@isilder It is true. Generally they are safe. A lot has to go wrong but when it does, they are more likely to have a meltdown. Having said that, there are several RBMK reactors still in use, successfully, for decades.
@Robert Beck That's not surprising. It is the state where the governor recently tried to AUCTION OFF a seat in the US Senate. (I'm waiting to see of John Carney gets sent to prison. He'd be the first Democrat Governor in over 40 years to not go to prison when a Democrat from his state became President if he doesn't.)
Just prior to those panels collapsing, my family took a vacation to Boston. We drove through that very tunnel. When we saw that on the news we felt very lucky. Also power isn't volts, power is watts
But anyway, the cable was used ,in testing, for too high current , which was achieved via too high voltage and also resulted in too high power. Too high voltage causes sparks and explodes holes in the wire,snd that would have been noticed . . Too much current made the wire hot, which cooked the insulation and made it brittle ,and that wasn't noticed.
@@isilder Actually the causes of the Apollo 13 disaster were much more complex than indicated in the video or in these comments. The oxygen tank was designed with thermostatically controlled heaters to evaporate some of the liquid oxygen to increase tank pressure when necessary. The heaters and thermostats were specified by NASA to operate on 24 volts (which was the spacecraft operating voltage) and they were designed accordingly. At a later time the voltage used on the launch pad was increased from 24 volts to 65 volts but nobody thought to change the specification on the heaters or thermostats in the oxygen tanks. It really should not have been a problem as the cryogenic liquid oxygen would have kept the temperature low when the heater was powered and if it did warm up excessively the thermostat would turn off the heater before it overheated. Problem was that at one point the tank was dropped which dislodged some of the plumbing inside the tank meaning that the normal emptying procedure of flushing the liquid oxygen out with gaseous oxygen would not work. When they needed to empty the tank on the launch pad the engineers did a "work around", emptying the tank by turning on the heaters to boil off all of the liquid oxygen. This worked, but the excess heater current caused by the much higher voltage on the launch pad caused the thermostat contacts to weld closed. This caused the heater, running at about 7.5 times the power level it was designed for, to grossly overheat near the end of the process when there was no liquid oxygen keeping it cold. The extreme temperatures fried the Teflon insulated wiring inside the tank leaving it in a state ready to make a spark. Teflon is normally not that flammable, but in a high pressure 100% oxygen environment many things we don't think of as flammable will burn very aggressively. This was a lesson that should have been fully learned during the Apollo 1 disaster but it seems the lesson was not learned well enough. The spark ignited the wire insulation, the heat evaporated liquid oxygen causing tank pressure to rise resulting in an explosion. Oops...
@@evensgrey Thank you for that reference David. I just watched the video and it is very well done and covers all of the important points leading up to the disaster.
You missed the most 'interesting' bit about the Pinto, the executives at Ford knew of the problem but calculated that it would be cheaper to pay compensation to the survivors rather than fix it. Pinto has become the byword for corporate greed.
Yes, it's amazing how that myth has been perpetuated. The reality is, the Pinto was no more likely to explode than other similar vehicles of the time when read ended. There were a grand total of 67 deaths in such collisions, not the thousands the media pretended had occurred. The damning memo about the cost of law suits being lower than the cost of retooling production was actually a government memo, not a Ford memo.
Hyatt Regency. Matthys Levi's excellent "Why Buildings Fall Down" describes this tragedy very well. The design called for pairs of long threaded rods hung from the ceiling; a short cross-beam with a hole at either end was slid on to both rods and lifted to the fourth-floor level, and threaded collars spun onto each rod and up under the beam to secure it. Repeat with another beam and pair of collars at the second-floor level. Repeat this structure several times across the atrium; lay the walkways across the beams. The rods and ceiling connections were designed to carry the load of the entire structure with a reasonable margin of safety, including dead load (the simple weight of the structure itself) as well as static & dynamic loads of people using the walkways. The cross-beams were likewise designed to carry the various loads of a single walkway, again with a reasonable margin of safety. The long rods were expensive, heavy, and generally difficult to handle, and threading the collars from the end all the way to the fourth-floor level took a long time (and time is money). As actually built, they hung shorter rods from the ceiling down to the fourth-floor level; a short cross-beam with TWO sets of holes at each end was slid onto the rods, with the threaded collar attached underneath to secure the fourth-floor beam. Then a second pair of threaded rods was slid through the second set of holes on that beam, with a nut on top, to hang a second set of shorter rods from the fourth-floor beam down to the second-floor level; the second-floor beam was attached to these rods as per the original design. Again, repeat across the atrium, and lay the walkways on the beams. The second-floor walkway was thus suspended from the fourth-floor beams, instead of from a continuous rod all the way to the ceiling, which meant that the fourth-floor beams were carrying both walkways - twice the load they were originally designed to carry - and, those fourth-floor beams were weaker than the original design, due to the addition of a second set of holes. Some of these beams failed, which led to the cascading collapse of both walkways.
Architect "designs" structure. Hands it over to an engineer who stuffs steel into it until it won't fall down and hands it back. Architect makes changes and doesn't tell engineer. Structure falls down.
I got a brand new 1972 Ford Pinto (special edition) as my first car. Base model was $1,800; mine cost $2,700 and still had no power steering, power brakes or air conditioning. Had it for 15 years. The day the recall was announced I came within about 3" of being rear-ended because some idiot suddenly stopped in front of me for no reason, and the guy behind me laid down a lot of rubber as he skidded.
The one thing I'm curious about is what happens to the previous rovers that were sent to Mars.... ie. what do they do with them after their "useful life" as an exploration rover has ended?
The end of their "useful life" is basically when they no longer can communicate with mission control on Earth. The Spirit rover was declared unreachable in 2011 (after being stuck in place for 2 years by a bad wheel and soft sand and having fallen out of communication, and likely not being able to generate enough power to survive the Martian winter in hibernation mode due to the bad angle of its' solar panels as a result being trapped in place) having operated for 2208 Martian days and driven 7.73 km. The Opportunity rover lasted 5352 Martian days and drove 45.16 km, being lost in a planet-wide dust storm in 2018 which either damaged the vehicle or deposited too much dust on it for it to be able to produce enough power to activate. (Mission design parameters called for 90 Martian days survival and 0.6 km driving distance. This makes both of these rovers among the greatest overachievers in spaceflight history.)
If we ever build a Colony on Mars, the rovers will likely be recovered (assuming we can find them and/or they've physically survived the MANY Martian Dust/Sand Storms they'll have experienced by then) and either placed in a Museum or recycled for their materials... Until then, they'll simply be abandoned in place once they can't do their job anymore...It's not like we can bring them back to Earth...
The F.S.U. Bridge failure was a direct result from several different engineering and oversight mistakes that cost lives, all of which could have been prevented if ego wouldn't have gotten in the way.
On its fiftieth year, the Golden Gate Bridge closed for vehicular traffic and only had pedestrian traffic. The bridge bent more than had been expected, with lots of sway.
Talks about Apollo 13. Shows video of the shuttle, but doesn't talk about the two catastrophic preventable failures. Hmmm. Also in general, for a video about engineering mistakes, I'd have expected a little more depth about the actual mistakes. For example, what was the reason for that bridge disaster? Or for that matter, the other bridge problem? As for Deepwater Horizon, if I recall correctly, this was ultimately a case of regulatory failure, where regulators relied more than warranted on self-regulation in the industry, which, in the end, was more interested in cutting cost than enhancing safety, with entirely predictable results. Just like, oh, the 737max disaster? (And while we're at Boeing, when - if ever - will we see Starliner actually work as intended?)
Well it's not like this is the History Channel or a documentary it's an entertaining list video. You can put whatever you want on your channel and videos and then people can correct and criticize it I'm sure lol 😁👌
When talking about the Apollo program why show footage of the Space Shuttle? Also, granted the Ford Pinto had a serious issue, you shouldn't show a scene from the from the 1984 comedy Top Secret as an example of that design flaw.
Unfortunate events all, but as long as giant, faceless companies continue chintzing as much as possible just to put a few extra bucks in their own pockets, stuff like this will always happen.
They should have mentioned that, it was really pretty simple. The design had long steel rods running from the roof down through the lowest walkway. The contractor cut corners and used shorter rods. One set ran from the roof to the top walkway. Second set was joined to the first sent and when down to the next walkway. The joints failed.
The very fact that there are two measurement systems in use around the world today has caused immeasurable problems over the years! I see videos on US TH-cam channels in the metric system! I have never used the metric system as the US is using the Imperial system of measurement! When a narrator states some kind of measurement in the metric system I and most Americans have no idea what the measurement really is! This is something that should be policed by TH-cam!
The platform issue happened in Ireland also. Trains ordered for a suburban service from Dublin to Drogheda (30 miles north of the city) were too wide for stations on the route, which had platforms extending under road overbridges at stations. The shorter sections on the "wrong" side of the bridge were abandoned and new sections at the other end of the station added to maintain platform length.
Footage of the Ford Pinto explosion was later deemed engineered and is not indicative of actual fuel tank failure during accidents, not to say they didn't occur. The footage you use should have a disclaimer or remove ve it.
the apollo 13 oxygen tank didnt merely fail, it explosively vented; blowing out a side panel of the command module, and damaging the other oxygen tank so it was slowly venting into space.
The designers of the pinto wanted to put the fuel tank between the sides of the rear seat, in the truck. The sales department said no, because they were thinking of offering a fold down access to the trunk. Had the fuel tank been there, it would have shielded the tank from contact.
I had a 1979 Pinto back in the early 1980s. Never had a problem with it over 7 years, although a police car backed into my front bumper in 1982. Mine didn't have fold-down access to the trunk.
Who cares about the costs when lives are lost. I'd hate to lose my life like any of these poor ppl. If it does happen to me, let's hope it's quick & not slow & painful. RIP everyone that lost their lives, that weren't their fault
Apparently, the Chernobyl catastrophe was planned by a person who was responsible for a failed over-the-horizon radar station. There's a film on this topic, The Russian Woodpecker, by Chad Gracia. Though the film is admittedly odd, it's plausible.
Sad thing is it always takes people to die before anything is done even though they knew about the problems before hand, there needs to be murder attached to those charges, not manslaughter or death by accident but full on murder and punished accordingly.
IF the walkways had been built according to the original designs, yes, actually you could have safely danced on them... With the way they were actually built however, it's a Major Miracle they survived as long as they did...I'm surprised they didn't collapse within the first month or 2 after the building was finished but it actually survived 13 months before failure...
I dont know. Putting a bad seal in aquarium and trains that are s bit too wide in the samd list as a misculated mars orbiter or a lake sucked into a mine seems pretty random.
The SNCF (french railways) example was not an engineering mistake. Due to new EU regulations about train sizes they knew from the beginning the trains would be too wide for the existent gap between the tracks and the platforms. The scandal was the company aggressively tried to force the regions to pay for the platforms rebuilding. The regions leaders angrily refused to share the costs and complained to the journalists saying the company designed overwide trains. The journalists did not really investigate and spread this version of the story leading the transport minister to ask for the SNCF CEO to be fired (which did not happen)
Chernobyl was completely mismanagement, and had nothing to do with flawed design. At the time, ICBMs were designed and built to be among the safest reactors ever built.
#Top Five Forgot another fact about the Millineal bridge. It can't be used in wet weather as the floor gets MORE slippery then ICE and so fare all the "fixes" Have failed to correctly fix it to the point it aren't a hazard to cross for people with mobility issues.
The number 3 one (Deepwater Horizon) affected my town here in Florida panhandle. I remember it. Oil-soaked birds, turtles, fish, etc. ALL along the beach. Oil balls still being recovered occasionally.
The dispersant they used only got Oil off the surface (made it sink) so the full extent of Oil damage isn't truly known.
It's still leaking now isn't it? I heard it was capped but not sufficiently, but was sealed to "acceptable" levels of leakage by the company which is completely unacceptable in reality.
@@DStead2239 they claim it is no longer leaking but people here do not believe it. We are still finding areas of beaches with tarballs. Boaters are pulling up chunks of tarballs that clung to the coagulation and dispersants they used and sank in the ocean.
It's still affecting us here that's for sure.
ANY level is not acceptable.
I actually was just hearing the company did a crappy job cleaning up that oil spill and that there are still wildlife who are displaced from their habitat and that it isn’t rare to find wildlife with oil on itself.
2020 was all about survival with many achievements not met but you have to be ready for the future and it begins right now by making a move to achieve your goals…If you have been saving and it’s not really getting you to were you want to be, then invest that money today for a better life tomorrow. If you can’t fly, run, if you can’t run walk, if you can’t walk crawl but just try and move to achieving your goals..
I think this pandemic has taught people the importance of multiple streams of income unfortunately having a job doesn’t mean security rather having different investments is the real deal… So l really appreciate your transparency
Does investing require you be up to certain age?
@@williamsjohn5785 Age isn’t a barrier in making millions, when you utilize all necessary opportunities you’ll see yourself making huge profits after a successful business, I like where good investment are talked about.
Crypto is the future, Investing in it now will be the wisest thing to do especially with the current rise
How does this whole crypto thing work, I’m interested in it and I’m willing and ready to invest heavily in it but I’m going to need an assistant from any trusted and productive professional
People think Mars is going to be like Dune, but it won't be. We live on the most astonishing, beautiful, varied and incredible place in the universe, I can't imagine ever going anywhere else! I want to explore here!!!
In the universe? How can you be sure? Considering billions of planets, it’s unlikely that’s true
@@sjamescharlton
It's TRUE to me. This is my heaven. I don't care about anything else because I love it here so much. Of course there are better places somewhere, for someone else, but not for me. I sat on the beach on the isle of st. John, watching a thunderstorm blow in, rocking the boats in the bay, then it passed, the night was unbelievably beautiful, it was like a dream. I never wanted to be anywhere else. When you find your home, it's good to know it.
@@christineparis5607 Friend, Earth is a cage. We live on a world that is killing us, overpopulating and burning. Storms and vast oceans, unknown frontiers await us in space.
Earth is only the first step, the whole galaxy awaits.
If you had lived your whole life in a cave, emerging into Death Valley would seem like Paradise. Earth is beautiful but deadly. Wonderful landscapes but deadly thunderstorms. Amazing animals, and birds, but deadly predators and fatal viruses.
I'm sure there are far better, and far worse planetary environments out there.
We'd rather you didn't, Christine. Speaking for all humans.
Cool video but disappointed that the Tacoma Narrows Bridge collapse didn't make it onto this video. The Millennium Bridge swaying 3 inches side to side has nothing on "Galloping Gertie" which collapsed in 1940 after only being open for four months. Plenty of videos showing just how drastically the bridge was swaying not just side to side but also up and down at the same time. It was one of the longest suspension bridges at the time and the entire center section looked like waves in the ocean before completely collapsing into Puget Sound below.
I've seen at least 20 videos over the years, probably more, telling the story of Galloping Gertie. Most of these were new to me, which I appreciated very much. To my way of thinking, Gertie is old, old, old news and there is nothing new to tell about the incident.
The Lotus building *was* built on solid ground, but an underground parking garage was dug out later from beneath it, and with the pile-up of that dirt next to the building the entire support base was compromised.
I worked at the Mall of America a few years after it opened and they had similar problems with their Aquarium. It leaked into our warehouse at least once.
I remember when the Hyatt skywalks collapsed. I was living in KC then.
I was surprised the Willow Island disaster couldn't be included on here.
I had one of those pintos. Mine was a 77, and by then, they had fixed it. All they did, was put a piece of nylon or white plastic, between the rear end housing, and the gas tank. That's all it needed, and it worked. Car kind of got a bad rap for something stupid.it really wasn't that bad of a car.
The engineering mistake of the pinto was to avoid a few dollars per car in manufacturing costs by not improving safety voluntarily ,even when they were negotiating minimum safety standards for future models. The accusation is that they said they were doing the best they can eg eg when negotiating the test standards , but this talk was in public domain so its like a promise to the buyer. Other car models may be been doing the best they can .. or at least they didnt admit to knowingly avoiding a simple cheap no-side effects improvement....
Thank you for the update, Top Fives..!! 12:35 I have never seen that footage before. @.@
#Number15 should be on top of the list!!!!!!!!!!!!!!!!!!!
😁
The Challenger is a horrible event caused by a mistake. I knew .Sharon Christa McAuliffe. She was my friends aunt. My whole school knew her. It was such a horrible day, and unnecessary deaths. I will never forget that day. My whole school closed for 3 days after that.
Was she from Elmira NY?
@@joegilly1523 Concord New Hampshire.
I can't help but feel for Ms. McAuliffe's students, who no doubt watched the rocket launch, and in turn witnessed the demise of their beloved teacher. If I were a kid in that situation, I don't think I would ever get over something like that. It's beyond traumatic.
@@Mochrie99 I will never forget that day. It is was a horrible.
@@Hunter225 I still remember... Was starting 3rd period Biology when the news was released. The teacher was a jokester, and came in saying the shuttle had exploded. I said "thats not funny", but minutes later we were able to see it on a tv he brought in. Seeing it brought shock and a sudden queasiness in my stomach. A sad moment for everyone...
What - no Challenger "O" ring?
What about Apollo 1 were all three Astronauts burned to death during a test in the Apollo capsule?
The B2 has been a very productive airframe.
Millennium Bridge: so I was in London & visiting the Tate Modern the day the bridge opened. It was way too crowded, but we resolved to cross the next day. We were in line. People were crossing. Then, with no explanation, they closed it. We were hugely disappointed. There had been so much hype. Only once back in California did we learn the reason behind all this. But, today, if you visit St. Paul's, as you must, then cross this bridge and go to the Tate Modern.
One of the issues with the Chernobyl RBMK reactors, was that the RBMK designs, while generally very safe, have a positive void coefficient in their design. Basically, the more "voids", IE bubbles in the coolant, in this case water, the faster the reaction, the more heat, etc. This, combined with a cutoff of the water coolant, caused a massive feedback loop and overheating. US reactors, by and large, have a negative void coefficient, whereby the more voids, the less reactive the plant. There are other safeties in place for both, of course, and several RBMK reactors have been operating successfully for decades.
I have, again, way oversimplified. i just wanted to share a little something I knew.
Its not true that positive void coefficients can be made safe. The problem is that if parts of the reactor core is ever melted, then the coolant pipe could quite easily be blocked,and rods stuck, or rods moved, to a bad arrangement. ..so it must be assumed that the coolant water will be boiled away. At fukishima, the boiling of the cooling water only resulted in minimal melting of rods.
@@isilder It is true. Generally they are safe. A lot has to go wrong but when it does, they are more likely to have a meltdown. Having said that, there are several RBMK reactors still in use, successfully, for decades.
Rbmk=real bad make kaboom.
@@darrylhaynes9208 💯
The issue with The Big Dig was overwhelming ubiquitous corruption.
That whole state is corrupt.
@Robert Beck I'd guess Illinois.
@Robert Beck That's not surprising. It is the state where the governor recently tried to AUCTION OFF a seat in the US Senate. (I'm waiting to see of John Carney gets sent to prison. He'd be the first Democrat Governor in over 40 years to not go to prison when a Democrat from his state became President if he doesn't.)
Just prior to those panels collapsing, my family took a vacation to Boston. We drove through that very tunnel. When we saw that on the news we felt very lucky.
Also power isn't volts, power is watts
But anyway, the cable was used ,in testing, for too high current , which was achieved via too high voltage and also resulted in too high power. Too high voltage causes sparks and explodes holes in the wire,snd that would have been noticed . . Too much current made the wire hot, which cooked the insulation and made it brittle ,and that wasn't noticed.
@@isilder Actually the causes of the Apollo 13 disaster were much more complex than indicated in the video or in these comments. The oxygen tank was designed with thermostatically controlled heaters to evaporate some of the liquid oxygen to increase tank pressure when necessary. The heaters and thermostats were specified by NASA to operate on 24 volts (which was the spacecraft operating voltage) and they were designed accordingly. At a later time the voltage used on the launch pad was increased from 24 volts to 65 volts but nobody thought to change the specification on the heaters or thermostats in the oxygen tanks. It really should not have been a problem as the cryogenic liquid oxygen would have kept the temperature low when the heater was powered and if it did warm up excessively the thermostat would turn off the heater before it overheated. Problem was that at one point the tank was dropped which dislodged some of the plumbing inside the tank meaning that the normal emptying procedure of flushing the liquid oxygen out with gaseous oxygen would not work. When they needed to empty the tank on the launch pad the engineers did a "work around", emptying the tank by turning on the heaters to boil off all of the liquid oxygen. This worked, but the excess heater current caused by the much higher voltage on the launch pad caused the thermostat contacts to weld closed. This caused the heater, running at about 7.5 times the power level it was designed for, to grossly overheat near the end of the process when there was no liquid oxygen keeping it cold. The extreme temperatures fried the Teflon insulated wiring inside the tank leaving it in a state ready to make a spark. Teflon is normally not that flammable, but in a high pressure 100% oxygen environment many things we don't think of as flammable will burn very aggressively. This was a lesson that should have been fully learned during the Apollo 1 disaster but it seems the lesson was not learned well enough. The spark ignited the wire insulation, the heat evaporated liquid oxygen causing tank pressure to rise resulting in an explosion. Oops...
@@Vincent_Sullivan Thunderf00t just release part 3 of his analysis of the Apollo 13 explosion.
@@evensgrey Thank you for that reference David. I just watched the video and it is very well done and covers all of the important points leading up to the disaster.
How can I become a part of the top fives production team? That seems like an extremely cool job!
just follow the lead for a while you'll get there for sure!!
There can only be 5.... so you’d have to wait till one spot opens and hope you are the one they think of....
The rule of five, just like there can only be 2 Sith Lords
Should be easy imo. They are making top 15 vids. Must forget who they are, where they came from. Hahaha
Just use imperial units while rest of the world use metrics.
You missed the most 'interesting' bit about the Pinto, the executives at Ford knew of the problem but calculated that it would be cheaper to pay compensation to the survivors rather than fix it. Pinto has become the byword for corporate greed.
Yes, it's amazing how that myth has been perpetuated. The reality is, the Pinto was no more likely to explode than other similar vehicles of the time when read ended. There were a grand total of 67 deaths in such collisions, not the thousands the media pretended had occurred. The damning memo about the cost of law suits being lower than the cost of retooling production was actually a government memo, not a Ford memo.
I think fight club highlighted a lot of companies do that
Hyatt Regency. Matthys Levi's excellent "Why Buildings Fall Down" describes this tragedy very well.
The design called for pairs of long threaded rods hung from the ceiling; a short cross-beam with a hole at either end was slid on to both rods and lifted to the fourth-floor level, and threaded collars spun onto each rod and up under the beam to secure it. Repeat with another beam and pair of collars at the second-floor level. Repeat this structure several times across the atrium; lay the walkways across the beams.
The rods and ceiling connections were designed to carry the load of the entire structure with a reasonable margin of safety, including dead load (the simple weight of the structure itself) as well as static & dynamic loads of people using the walkways. The cross-beams were likewise designed to carry the various loads of a single walkway, again with a reasonable margin of safety.
The long rods were expensive, heavy, and generally difficult to handle, and threading the collars from the end all the way to the fourth-floor level took a long time (and time is money). As actually built, they hung shorter rods from the ceiling down to the fourth-floor level; a short cross-beam with TWO sets of holes at each end was slid onto the rods, with the threaded collar attached underneath to secure the fourth-floor beam. Then a second pair of threaded rods was slid through the second set of holes on that beam, with a nut on top, to hang a second set of shorter rods from the fourth-floor beam down to the second-floor level; the second-floor beam was attached to these rods as per the original design. Again, repeat across the atrium, and lay the walkways on the beams.
The second-floor walkway was thus suspended from the fourth-floor beams, instead of from a continuous rod all the way to the ceiling, which meant that the fourth-floor beams were carrying both walkways - twice the load they were originally designed to carry - and, those fourth-floor beams were weaker than the original design, due to the addition of a second set of holes. Some of these beams failed, which led to the cascading collapse of both walkways.
Who made this trash building?
Engineer: *sweats*
Architect: 👁👄👁
it was great
Architect "designs" structure.
Hands it over to an engineer who stuffs steel into it until it won't fall down and hands it back.
Architect makes changes and doesn't tell engineer.
Structure falls down.
An excellent video. 💙 T.E.N.
I got a brand new 1972 Ford Pinto (special edition) as my first car. Base model was $1,800; mine cost $2,700 and still had no power steering, power brakes or air conditioning. Had it for 15 years. The day the recall was announced I came within about 3" of being rear-ended because some idiot suddenly stopped in front of me for no reason, and the guy behind me laid down a lot of rubber as he skidded.
To see more about Chrnobyl put this in the search chernobyl documentary, there are some amazing videos here....
Graphic Pile..Winter Time ..More Heat a Needed...and Overload...
No Space Shuttle Challenger??
very nice video.
The one thing I'm curious about is what happens to the previous rovers that were sent to Mars.... ie. what do they do with them after their "useful life" as an exploration rover has ended?
The end of their "useful life" is basically when they no longer can communicate with mission control on Earth. The Spirit rover was declared unreachable in 2011 (after being stuck in place for 2 years by a bad wheel and soft sand and having fallen out of communication, and likely not being able to generate enough power to survive the Martian winter in hibernation mode due to the bad angle of its' solar panels as a result being trapped in place) having operated for 2208 Martian days and driven 7.73 km. The Opportunity rover lasted 5352 Martian days and drove 45.16 km, being lost in a planet-wide dust storm in 2018 which either damaged the vehicle or deposited too much dust on it for it to be able to produce enough power to activate. (Mission design parameters called for 90 Martian days survival and 0.6 km driving distance. This makes both of these rovers among the greatest overachievers in spaceflight history.)
If we ever build a Colony on Mars, the rovers will likely be recovered (assuming we can find them and/or they've physically survived the MANY Martian Dust/Sand Storms they'll have experienced by then) and either placed in a Museum or recycled for their materials...
Until then, they'll simply be abandoned in place once they can't do their job anymore...It's not like we can bring them back to Earth...
The Hyatt walkway changes were approved *by telephone* with no on-site review or study of plans. Several licenses were lost in the aftermath.
The F.S.U. Bridge failure was a direct result from several different engineering and oversight mistakes that cost lives, all of which could have been prevented if ego wouldn't have gotten in the way.
On its fiftieth year, the Golden Gate Bridge closed for vehicular traffic and only had pedestrian traffic. The bridge bent more than had been expected, with lots of sway.
🐼 Big Bear Hugs from a 67 yr old grandma in Kirby, Texas, USA 🐼.....
You could have included Bhopal Gas Plant strategy. Thousands of people were affected due to that
Talks about Apollo 13. Shows video of the shuttle, but doesn't talk about the two catastrophic preventable failures. Hmmm.
Also in general, for a video about engineering mistakes, I'd have expected a little more depth about the actual mistakes. For example, what was the reason for that bridge disaster? Or for that matter, the other bridge problem?
As for Deepwater Horizon, if I recall correctly, this was ultimately a case of regulatory failure, where regulators relied more than warranted on self-regulation in the industry, which, in the end, was more interested in cutting cost than enhancing safety, with entirely predictable results. Just like, oh, the 737max disaster? (And while we're at Boeing, when - if ever - will we see Starliner actually work as intended?)
Can't wait for your TH-cam channel.
@@nunyabidness117 Don't need to wait - not that it's a particularly interesting channel, but it exists.
Well it's not like this is the History Channel or a documentary it's an entertaining list video. You can put whatever you want on your channel and videos and then people can correct and criticize it I'm sure lol 😁👌
Never forget how Forrest Gump heroically brought Apollo 13 back from certain doom....
That actor has a name.
@@Nervadane I bet you’re a barrel of laughs at parties
@@petrolhead4503 it's ok i got your joke lol 😆 😂 😅 💯
@@petrolhead4503 Hilarious that they felt the need to defend the poor actor ahh 🤣
The biggest engineering / design mistakes in South Africa are the Foreshore freeways: parts of the highway just hang in mid air.
Didn't SA also have a problem with trains (or just locomotives?) with wrong dimensions?
To consider the B2 bomber a mistake because of one problem X expensive is that my baby a bad sensor overall the b2 was brilliant
Narrator sounds like Charlie Sheen on Adderrall.
The wonders of the freemarket
Chernobyl?
I was expecting the Hubble Telescope to make this list...
11:47 Berths, not ports. Subs and ships have berths where they tie up in ports.
When talking about the Apollo program why show footage of the Space Shuttle? Also, granted the Ford Pinto had a serious issue, you shouldn't show a scene from the from the 1984 comedy Top Secret as an example of that design flaw.
Ok Karen.
Unfortunate events all, but as long as giant, faceless companies continue chintzing as much as possible just to put a few extra bucks in their own pockets, stuff like this will always happen.
What happened to Japan's Nuclear plant disaster???
A massive tsunami? Not exactly an engineering failure.
It's been 35 years since the incident at Chernobyl power plant.
The photo at 16:20 is from the comedy movie Top Secret. It is not a real Ford Pinto gas tank exploding.
And the sad part about the pinto was Ford had developed a tank with a bladder but decided it wasn't cost effective.
Why hotel walkway flaw wasn't explained?
Corner cutting contractors.
@@greghackney8437 well yeah but others got a bit more explanation why things happened.
They should have mentioned that, it was really pretty simple. The design had long steel rods running from the roof down through the lowest walkway. The contractor cut corners and used shorter rods. One set ran from the roof to the top walkway. Second set was joined to the first sent and when down to the next walkway. The joints failed.
The very fact that there are two measurement systems in use around the world today has caused immeasurable problems over the years! I see videos on US TH-cam channels in the metric system! I have never used the metric system as the US is using the Imperial system of measurement! When a narrator states some kind of measurement in the metric system I and most Americans have no idea what the measurement really is! This is something that should be policed by TH-cam!
The platform issue happened in Ireland also. Trains ordered for a suburban service from Dublin to Drogheda (30 miles north of the city) were too wide for stations on the route, which had platforms extending under road overbridges at stations. The shorter sections on the "wrong" side of the bridge were abandoned and new sections at the other end of the station added to maintain platform length.
I like how a whole model of car made the list...
Footage of the Ford Pinto explosion was later deemed engineered and is not indicative of actual fuel tank failure during accidents, not to say they didn't occur. The footage you use should have a disclaimer or remove ve it.
All I could think of when the Millennium Bridge was discussed was the attack by the Death Eaters...
i was tinking the same ting
How many people hear Charlie Sheen?
How is that not him?
Not until i saw your comment. Now i can't unhear it....
Well now I do...
Charley..Is he sick ?
He always has been Tommy
the apollo 13 oxygen tank didnt merely fail, it explosively vented; blowing out a side panel of the command module, and damaging the other oxygen tank so it was slowly venting into space.
Did you know ??
The human eye is so sensitive that if the earth were flat and it was dark night a candle's flame could be seen from 30 miles away
🤔
Plus you could see another Country with a Telescope 🔭
and some flatEarther will have some mental gymnastics as to why or how these things are possible...
What do you mean “if” the earth was flat? Lemming
So when the candle is 30miles away and I can not see it, it is prooving that the earth is round?
"this way its cheaper" will lead to lot of failures
simple history
The designers of the pinto wanted to put the fuel tank between the sides of the rear seat, in the truck. The sales department said no, because they were thinking of offering a fold down access to the trunk. Had the fuel tank been there, it would have shielded the tank from contact.
I had a 1979 Pinto back in the early 1980s. Never had a problem with it over 7 years, although a police car backed into my front bumper in 1982. Mine didn't have fold-down access to the trunk.
@@cynthiasimpson931 They never got aroind to offering that option.
The space shuttle takes off and parts fall off and go thru the wing heat shields.
What could possibly go wrong?
Who cares about the costs when lives are lost. I'd hate to lose my life like any of these poor ppl. If it does happen to me, let's hope it's quick & not slow & painful. RIP everyone that lost their lives, that weren't their fault
1:16 does this remind anyone else of the N64 star wars game?
I had a classmate die in a pinto in the summer of 1975. Rip Dave.
Rip in the eternal.
Every construction should have prayer over them for safety...
@@Love-jf7rs Solid engineering would work much better - as has been tested a number of times, prayers don't work. At all.
Is this the same voice dude as simple history?
You missed the Florida Bimbo Bridge!!!
Apparently, the Chernobyl catastrophe was planned by a person who was responsible for a failed over-the-horizon radar station. There's a film on this topic, The Russian Woodpecker, by Chad Gracia. Though the film is admittedly odd, it's plausible.
19:00 So, did the safety test pass?
2 years to FIX A bridge
Ford Motor Company determined that it was cheaper to pay liability claims than redesign the problem and manufacturing methods.
Sad thing is it always takes people to die before anything is done even though they knew about the problems before hand, there needs to be murder attached to those charges, not manslaughter or death by accident but full on murder and punished accordingly.
The mine lake incident would have been avoided if government regulators have properly Mapped everything
The walkways in the Hyatt Regency were never meant to be danced on, merely walking was a danger
IF the walkways had been built according to the original designs, yes, actually you could have safely danced on them...
With the way they were actually built however, it's a Major Miracle they survived as long as they did...I'm surprised they didn't collapse within the first month or 2 after the building was finished but it actually survived 13 months before failure...
Lockhead Martin express 0.03 inches as 2.5*10^-3 ft whereas as Nasa expressed 0.03 inches as 1.181 mm or 1.181^10-3m
Hmm, the Top Fives channel lists a topic with a factor of 3 bigger amount of mistakes. I'd say that's a win!
Will you still click and watch the video lol🤣
I dont know. Putting a bad seal in aquarium and trains that are s bit too wide in the samd list as a misculated mars orbiter or a lake sucked into a mine seems pretty random.
i get the feeling that B2 crash was due to covered PICO tubes..
The SNCF (french railways) example was not an engineering mistake. Due to new EU regulations about train sizes they knew from the beginning the trains would be too wide for the existent gap between the tracks and the platforms. The scandal was the company aggressively tried to force the regions to pay for the platforms rebuilding. The regions leaders angrily refused to share the costs and complained to the journalists saying the company designed overwide trains. The journalists did not really investigate and spread this version of the story leading the transport minister to ask for the SNCF CEO to be fired (which did not happen)
All aquarium PRISONS need to be shut down....Animals and fish freed and then put people that engineered them in them and then deztroyed...
Tow the Subs to Boston..
Both underwater...
sometimes these mistakes are just murder 😕
That was my reaction too
Spain’s only submarine, a world force to be reckoned with!!
The chineese building went down, because they digged out a parking basmenet after they built it.
Chernobyl was just an honorable mention lol
Hi
hey👋
Nothing about the tacoma bridge??
Chernobyl was completely mismanagement, and had nothing to do with flawed design. At the time, ICBMs were designed and built to be among the safest reactors ever built.
Ha!
By the Russians I think not.
What about Fukushima?
LMAO @ using HBO's account of Chernobyl.
My bro had to work on a project after a Tesco's built over a bridge caused it to collapse.
Hyatt failure was not due to cost cutting
#Top Five Forgot another fact about the Millineal bridge. It can't be used in wet weather as the floor gets MORE slippery then ICE and so fare all the "fixes" Have failed to correctly fix it to the point it aren't a hazard to cross for people with mobility issues.
He's the same narrator from Simple History
And I thought I was having a bad day...
That's why everyone uses metric system
i knew it.. lol.. cher is #1
I always wonder when you people ever build anything what actually really works without having any kind of problems ?
who the fuck are you talking about? These videos are about the middle east, American, the UK, all places
WoW shit just got real 🤣🤣🤣🤣🤷♀️
Nothing goes to Mars but your imagination. Grow up
Tim Ryan