Well said @Kevin72836 and @feelincrispy7053 - - and let's not forget the equally tragic loss of Jesse Combes. Grant was an amazingly natural 'science communicator', both he and Jesse brought so much to Mythbusters in their own unique way. Such a terrible, immensely sad loss. And one really feels for their families. With the whole team it felt as though they were all as invested in the experiments as the viewers were, as though they were all as passionate about the show, and as interested in the outcomes as we were - and I don't think you can fake that enthusiasm just for the camera. Furthermore, the interaction between the teams, during and between builds, and experiments etc, was all the more entertaining because it wasn't scripted, there was genuine laughter. Rest now Grant and Jesse: you are so sorely missed, you will not be forgotten. And thank you both for your dedication, skill and enthusiasm. Along with the entire Mythbusters team you made Science accessible and S.T.E.A.M. cool. Thank you all. Zac Daunt-Jones.
Exactly. A sustained tone would be less likely to cause a gun to fire than a series of short, sharp kick drum sounds would. If you positioned the gun with its butt against the speaker, the kick drum would be like hitting the butt with a hammer. I can't believed they missed this.
@ThreadBomb I bet they didn't use a named banger of a tune due to coppy right the tapenup all the brands even on the heavy equipment they use even the rental company
If you had a vehicle model with a floor that moves more than most, it could potentially act as a resonating plate to shake the sks. There are also aftermarket seats that im sure a few gansters have in their cars and some aftermarket seats resonate more than others.
Ironically enough, i used to work somewhere with an absolute moron of a HSE rep (safety guy). He just so happened to be a gun enthusiast who was missing a portion of one finger from mishandling a revolver.
Thanks for continuing to upload these! My uneducated best guess about "thermite + ice = explosion" thing is that a portion of the water ends up skipping the liquid state? 1) We start with ice with thermite on top, unlit 2) As we light it, thermite melts a portion of the ice (top layer) to water 3) Water (that's quickly becoming steam) and burning thermite mixture gushes over the sides & encapsulates the ice 4) Ice melts from all but 1 side now, all that water again quickly turning to steam, increasing pressure as heat is still increasing 5) We reach a breaking point where theres is a core of ice inside a hot & pressurized capsule of steam and thermite 6) Physics.exe goes "hmm this aint right" and and the ice *_instantly_* goes to steam, roughly 1600x the size 7) Profit
My initial guess is that the high amount of energy splits water into oxigen and hidrogen gas, which is very explosive. That's the same reason why sodium and other alkaline metals explode in water. Edit: Ok and now I kept watching and Jaimie said the same thing lol
@@MartoLun i dont think so all the hydrogen would need to form instantly, and even in chem labs we use the "knallgasprobe"(explosive gas check) where we create hydrogen to check for several diff molecules this thermite explosion rather looked like a slag explosion its when a company pours their still hot slag on wet ground the temps for the splitting of water molecules isnt reached(slag max temp is 1400°C - usually they cool for a day before throwing it on the ground) but the water gets evaporated fast enough to cause an explosion you can look up vids of that and check the similarities^^
@@suicidalbanananana it's probably a good bit of both, but there *is* a reason why other metal fires aren't extinguished with with water, but with special foam. Hydrogen explosions' no joke
If simple rapid gas expansion was to blame, then presumably it would be even more explosive with dy ice, which takes much less energy to go from solid to gas... But it doesn't. People always forget that aluminum is explosive, and it explodes with just plain water as well. It has nothing to do with rapidly expanding water vapor. The science is not well understood. Only in the last 5 years was the first paper published that explained the detonation of alkali metals with water. You could hypothesize that it's the same type of reaction. Aluminum, when molten, forces it's oxide layer to the surface. Thermite can get hot enough to decompose this oxide layer completely. Pure aluminum (no oxide) and water react like this, Al2+3H2O->Al2O3+3H2. This reaction occurs very rapidly, with the same E∆/t as dynamite. Just google the aftermath of aluminum foundry explosions. It's like the MOAB going off. Why people have a hard time replicating it with molten aluminum and water is because they typically pour the aluminum from a crucible into water. They are very lucky. Aluminum will very quickly develop an oxide layer as it is pouring, which limits the reaction severely. If you poured water into a large crucible, there's a good chance it will go boom. Probably with enough force to kill you and shater your neighbor's windows. Why thermite works eith ice but not water, is because thermite burns hot enough to decompose the oxide layer, but usually not while subjected to evaporative cooling. Of course, water dumped on thermite can cause some small partial explosions, and will shower sparks everywhere, but with ice, the water, and exposed thermite can come in contact without causing rapid cooling of the thermite, and lacks the plastic deformation characteristics that inhibit deformation of the oxide scale. Tldr, aluminum is explosive and reacts with water. The fact that it only works with ice is just a coincidence of physics.
15:37 - Based on what I learnt in Physics and Chemistry in University, I have 3 Hypothesis for what happens with Thermite and Water Ice. 1) Like Jamie said, at 4,000°C, a lot of the water in the ice will decompose into Hydrogen and Oxygen, and because of the enormous heat present will recombine. 2) Water Ice contains a lot of trapped air bubbles. With the radiative heat from Thermite shining so much infrared radiation through the relatively clear ice, all these millions of tiny air pockets turn into superheated gas in an instant, with explosive result. 3) At 4,000°C the Water in Water Ice sublimates instantly, that is it turns from the State of being a Solid, skips the State of being Liquid, but jumps straight into becoming a Gas, a superheated, Dry Steam. I believe that all these three hypothesis of mine are present concomitantly, and each one of them yields an explosive result on it's own. When they said what they were going to do, I knew the result would be explosive. And let's not forget, that with 1), 2) AND 3) happening at the same time, for a split second, the Thermite will be spread into an AIR-FUEL MIXTURE! Air-Fuel Bombs are some of the most powerful bombs on the planet. However, this Air-Fuel is probably secondary to the first three reactions. Great MythBusters Episode!!! 👍
@@fanman420 Indeed you are wrong. We are talking 4,000°C here. In order to create a Coloumb Explosion you would need to turn Water into PLASMA… And that doesn't happen until Water Vapor has reached around 100,000°C. You can't make that happen with any Chemical Reaction on Earth. In order to create a Coloumb Explosion, you will need to expel the electrons from the Hydrogen and Oxygen Atoms in Water. The Coloumb Explosion then takes place by the repulsive forces of the remaining positively charged Protons of the Atoms.
@@fanman420 - You are in fact wrong. In order to get a Coulomb Explosion, you will need to transfer Water into the Fourth State: Plasma. That doesn't happen until Water reaches around 100,000°C. The reaction temperatures here are at most 4,000°C. In order for a Coulomb Explosion to occur, you need to get Water into an immediate State of Plasma, which expels the Electron Clouds from the Hydrogen and Oxygen Atoms in Water. The repulsive force in the remaining Protons of the Hydrogen and Oxygen then will create the Coulomb Explosion. But you won't create that sort of temperatures with any Chemical Reaction on Earth.
gunshot myth needed one more experiment. they should have put the gun pointing down resting on a metal surface. which would have made the gun to bounce and come back. now, by the time the gun is back to the surface, firing pin would be at the highest point i.e, there would be the most amount of gap between the trigger and the bullet. Now, if the next bounce is at just the right time and hard enough, the firing pin would be almost stationary and the gun would bounce with enough speed into the firing pin to set the bullet off.
Honestly setting off thermite with a matchbook is wild to me. Usually magnesium strips are used, just because the ignition temperature of thermite is actually quite high
@@FilmsAustin Just regular ones. I used to work in a quality control lab for aluminium powder for autoclaved aerated concrete. One of the tests was igniting a small cup of the powder with a match and timing the reaction. It's really not hard. It's quite similar to iron wool. Finer particles, larger surface.
My theory of ice block exploding in thermite: Ice consists of small pockets of air. This is the reason why water expands on cooling; it's due to these air pockets. So, when we ignite thermite, these air pockets start to expand drastically, and thus the explosion occurs
I think the SKS myth needed music to be a true test. But I also think it may have been a poorly treated rifle in a pile of rifles left loaded with safeties off. Pile shifts and some other item, maybe a bolt or a sight, glanced off of a trigger n set off 1 rifle. Which set off another and so on. Perfect weapons and engineered sounds are no match for gangster stupidity.
If, as the myth says, the rifles were in the back of a car, then it is far more likely a bump in the road is what set them off. The music was likely incidental. SKS rifles, especially poorly maintained ones are known for this after all.
@@Cheynanigans__ Thats what I figured, kinda hoped they would see if dropping or slamming the butt of the rifle into the ground would set it off. I figured that might just be a massive safety hazard, hence why it might have been ignored.
Well, we know an SKS can missfire if you hit a bump or things like that. But the myth was about sound firing the gun, not about a bump. I am sure you can bump an SKS in such a bad way that it will fire.
Every single episode I watch makes me think, that these guys and gals had _THE_ bloody best job on the entire planet.... and that includes astronauts etc.
You know, I keep seeing a Tide commercial that features Kari & Tori and the Mythbusters logo... Every time I see that commercial, I wonder if the show will be revived with those two... 🤔
They did 2 revives and both failed - First one was like half a year after the original show stopped, some sort of "hunt for the new Mythbusters" that featured a bunch of youtubers competing to become the new Mythbusters (check out "safety third" podcast about it featuring a few of them, apparently that was all kinds of weird & rigged) - Second one was fairly recent, some kind of "mythbusters for kids" with Adam Savage & Tory Belleci Neither of these were really aired internationally, only a few countries got to see them, but it's probably for the best as both honestly did the original a disservice, you're not missing out if you haven't seen these. There was also some show from Kari & Tory (i wanna say for 'Spike' channel?) that had a similar vibe but didn't have any official relation to Mythbusters & only lasted like 2 episodes, its possible they got shut down by Discovery. The fact that they've sold the rights now (this channel actually owns Mythbusters) means there probably won't be a third attempt.
They should have tested the thermite on dry ice blocks. Would be interesting to see it explode as well and the CO2 perhaps suffocating the flames in the centre immediately.
It would not suffocate the thermite since it is an exothermic reduction-oxidizing reaction. Meaning that oxygen does not come from the surrounding air but from the oxidizer in the mixture. Such reactions can't be extinguished by normal means like water or suffocation
Thermite provides its own oxygen. It's iron oxide and aluminum powder turning into aluminum oxide, molten iron, and massive heat. No atmospheric oxygen required. It can even burn in space!
15:37 - "noone really knows"? Seriously? What happened there is simply a steam explosion. If you've ever seen molten hot molten metal meet a wet charge you know exactly that this happens. No, there's no decomposition of the water. Hot molten metal simply hits the ice, ice flashes to steam under the metal, has nowhere to go, and explodes from the expansion pressure. Simple as that.
I think they may be looking for more complicated explanations than needed. Water turning in to steam expands to around one thousand times it's volume; So IF the thermite actually burns hot enough to not just melt but even turn it in to steam fast enough, it will be an explosion.. (or proper terminology would probably rather be "uncontrolled decompression") inside of the ice and the ice will itself around the the extreme pressure.. (Like blowing a fire-cracker in your hand.. Even a small one can ruin your hand IF you clench it around the cracker, but if it lays flat yon your open palm you may not even really get a scorch).
another similar situation is why you shouldn't throw water at an oil fire in your kitchen. water vaporizes and splashes the oil around, which catches fire more easily, leading to a nice fireball
@@stasi0238 .. Not sure what you mean; The problem with trying to get water to "explode" by heating it is that.. WHEN it turns hot enough to turn to steam it DOES turn to steam and.. leaves.. AND water turning in to steam takes a lot of energy, which is why pouring water on fire is such a good way to put out fires, it cools down the fire.. But water CAN "explode". You heard of boilers exploding?.. What you need to do is to keep the water around for long enough time so it gets to build up pressure, so instea of just fractions of a gram turning in to steam a LOT of it turns in to steam at the same time.. That is where the ice would come in; It becomes the solid encasement that keeps the water in place so enough of it will decompress at the same time. It's like a fire-cracker. A small fire-cracker in the palm of your hand won't even burn you.. but close your hand and you will lose your fingers. It's about whether the expanding matter has some place to go or if it has to "force" it's way.
@@rogerlundstrom6926 I'm not stupid lol. I'm talking about experiment in question. Thermite on ice violently explodes, but thermite that goes into water doesn't. If you are talking that pressure builds up in ice better than in water, remember that thermite is the source of heat so the nearest ice particles to thermite are turning to steam then further water and further lays ice, so there is no way to pressurize the steam. My opinion is that either aluminium or iron in the reaction is hot enough that it reacts with water as in X(metal) + H2O = oxide/hydroxide + H2. We can see this reaction working at room temperature with sodium or potassium and we can see similar explosion. The question about water not working makes sense then because hot metal can't react well with water since it creates a steam barrier better itself and liquid metal, and it makes sense that ice can't move like the water to allow liquid metal not to touch it.
@@stasi0238 .. So.. it's Interesting that you START by claiming to not be stupid. and then follow up by proving you didn't get my point at all. but.. I'll TRY to rephrase my statement again... Just to say; I have NEITHER done experiments, NOR done the maths to "know" whether this is true, I am ONLY relying on occhams razor: IF you already can explain things with what you already know, then stop trying to look for strange other explanations. So. .The thing is.. Water expands when it turns in to steam..thousand-fold.. this decompressin is EXTREME and creates a LOT of power. BUT... If you (f.ex.) boil water.. then.. it doesn't explode.. the REASON it doesn't explode is because one single water-molecule turning in to steam.. means.. it turns in to steam and DOES require a bit more space.. However, that ONE molecule has expanded a LOT! but it CAN traverse and expand, and so on.. QUITE a bit.. BUT.. it's expansion ALSO will cool down all the water that surrounds it.. at the time it is endothermic.. it sucks out the energy of the water around it so that water is COOLED.. (as I mentioned about why water IS the way to fight fires).. It SUCKS energy.. it COOLS it's surrounding. But more importantly: WHEN talking about a pot boiling.. the actual.. water that turn into gaseous form.. it.. will create bubbles in the pot.. and.. rise.. and.. cool down everything else.. and.. then.. float to the top.. and.. just go out.. it may have expanded a LOT but it is just a FRACTION of the actual amount of water in the pot.. and.. it cools down the water.. this is why a boiling pot IS 100 degrees centigrade and will never never ever PASS it.. you need to put it in a closed system for you to be able to heat water BEYOND 100 degrees centigrade.. if the water that passes this temperature is able to leave then.. it will leave.. and not affect the actual full system too much.... beyond actually COOLING the water. HOWEVER.. It's a matter of "speed".. and.. Even IF ice could melt.. it's about the speed of light.. Energy traversing can't go faster than the speed of light.. .so if you FLASH!!! heat ice to the point BEYOND melting.. then.. that part of the equation means it takes 1000 times more space than it used to take.. BUT if the actual "Ice" keeps it in.. then.. INSTEAD of water reaching the actual boiling temperature CAN'T easily disperse and just.. go into the atmosphere. then.. the pressure will build. the consequence of pressure building IS.. an uncontrolled decompression.. (Which is VERY similar to an.. Explosion.. MOST people wouldn't know the difference in the first place).. .. So.. SERIOUSLY.. IF you have an ice-block, and water SUDDENLY turns in to steam in the middle of all that ice.. it WILL create an explosion like event. .but.. if it instead was happening in the mid of WATER then it.. would just turn in to it's gaseous form and be FREE to escape the medium within which it was "trapped".* and I am not even trying to say that "I am right".. I am JUST saying that the most OBVIOUS solution to this conundrum doesn't even seem to be what people are pondering at all. they are IGNORING the thing that is in clear sight and trying to invent new solutions.. So.. I may ABSOLUTELY be wrong.. I don't question that.. I only say that.. you CAN solve this without resorting to zebras.. and.. you should look for ways to check whether the things that we ALREADY know of (such as exploding boilers) ISN'T the reason... before trying to claim it is "unknown" behaviour.
The most likely way for the SKS myth to be true is if the guns were sitting against the cone of the speaker. A big bass note will jolt the entire gun with enough force for the pin to set off the primer. It would be like dropping the gun. Subwoofers are often in the trunk and large, illegal rifles are also often kept in the trunk and out of sight. Gangsters probably don't have cases that secure the gun, but have them just laying there. The issue with the SKS myth as tested s that a firing pin that large isn't going to vibrate with enough force, if at all. You need intermittent heavy bass notes, which shake the entire rifle once. Inertia is probably the culprit if the myth is real. The gun moves from the vibration, the firing pin is floating and isn't moving with the gun. As soon as the pin hits the end stop, it gets shot in that direction, hitting the primer, firing the gun
I was thinking the rifles could've also been stored vertically, fallen from vibrations and fired. Far more likely with music than pure tones, it was an odd choice not to use music.
@@Cheynanigans__ Tones can easily be controlled, so they chose that. Given the design issue with the bolt, the rifle needs to be moved forwards and backwards really quickly and violently. Falling over wouldn't really do that.
The thermite explosion I did expect to be true as a welder I made products for tata steel (iron smelting facility in the netherlands)and their biggest nightmare wash moisture in contact with molten steel the quick forming steam is causing the explosion
guns in trunk woofers in back of back seats blowing their air at the guns moving the firing pin ... back of my old speakers right above the air port was a big warning " DO NOT PLACE 18 INCHES TO A WALL OR STRUCTUAL DAMAGE WILL OCCUR" ... it's the air being pushed around note the music ...
What is the SKS shook off the seat and the thud of it hitting the floor set it off.. and it's told as the sound system setting it off.. OR it could have been a really worn pin that moved more than usual
16:17 experts at work “we don’t know” … in metallurgy, this phenomenon is well-known and is referred to as a "steam explosion" or "molten metal-water interaction."
many different theories regarding the "exploding thermite", I personally would attribute it to "liquid Iron" running down into a ""puddle"" (enclosed volume) of water... Any one familiar with casting metals knows what that can do...
I feel like what they needed to do for the guns in the car was to blast some Heavy Metal or Death Metal. Something with massive base and severe booms to really make those pins bounce and jolt with real force. What they were doing was only creating small short length vibrations. Not enough movement or force to really make that pin slam the bullet. Need those sudden abrupt hits.
reason why ice explodes, is basic physics. it's release of energy. explosion is rapid burning. for example digestion is form of burning, it's very slow burn, that's why drinking strong alcohol makes you feel warm inside, cuz it burns inside your body, but not with a flame. it's slow burn. flame is normal burning, what most people consider burning and explosion is very rapid release of energy, it's all the same thing, it's release of energy from matter that is storing energy. ice can be turned into steam, which would occupy a much larger area due the fact that particles move much faster and can freely move. it's just like propane tank, it's gas compressed so much that it turns into liquid or you can cool the gas and it will turn into liquid, it's basic physics. to me it's common sense. BUT WHY DOES ICE EXPLODE? as i said, it's release of energy. that ice gets turned into gas almost instantly. thermite is so hot that it eats thru ice, reached the middle and turns ice into gas almost instantly, but that gas needs somewhere to go, so it explodes as there's so much released energy and it just needs to go somewhere. it's exactly same principle as why if you drop water into hot oil, it starts to "explode" on microscoping levels. i'm sure anyone who cooks has experienced it, when they put some oil on frying pan and heat it up, then if you put food on it, it starts to "sizzle" and bits of oil/water starts to fly off the frying pan, it's exactly same principle. liquid is turned into gas almost instantly and this energy has to go somewhere. it's not about hydrogen being extracted and exploding, you don't see a big fireball, it's just release of energy. here's how you can confirm it: 1. get vacuum chamber and put pressure gauge in it 2. put block of ice into vacuum chamber and let it turn into gas (water will boil in vacuum as there's no air pressure to hold it back). 3. wait until entire block of ice has turned into gas and pressurized the chamber 4. measure the pressure it generates 5. now calculate how much pressure this gas (ice turned into gas) would produce if you would compress it back into size of ice block 6. make pressurized tank and fill it with same pressure as the ice block turned into gas made 7. now violently pierce that tank and it will generate same kind of explosion (release of energy) in theory it should be same thing, but i don't have equipment nor money to make this test. i'm fairly sure explosion will be exactly same magnitude.
they doing it wrong with SKS, i think the myth comes from the fact that weapon could have been placed right against the speaker under right angle and it doesn't necessarily have to be loud noise, it's like they said with wine glass shattering. you need correct frequency under right angle. you're not going to shatter the wine glass with random noise from random angle. you can't "scream" at wine glass from bottom or top, you have to do it from side, which is weakest point. same applies for SKS pin. i'm thinking gun was touching the speaker or surrounding area that was violently vibrating and not just noise, but MUSIC. in music you often have places where it kind of "builds up" and then it hits really hard BASS, so the pin might have been moving back and forth and then that bass moment is what knocked it forward. i'm 100% sure it's possible, but very unlikely. you don't only need specific frequency, but specific pattern that would knock the pin and also right angle and right placement. if it would go off so easily, then there would be more reports of it happening. it's definently possible, but under correct circumstances. it's literally 1 out of a million or even a billion. i've seen some really weird stuff hapenning. something works 10000/10000, but that 1 out of 10000 it just fails for no obvious reason. it's the butterfly effect, something very tiny can cause huge effect and that's what you looking at there.
I think the thermite and ice explosion could be explained with a steam explosion. The initial termite to hit the ice would rapidly cause the ice to melt then boil. the boiling water/steam would then try to rise through the downflow of molten metal causing it to rapidly heat and expand. Ice would continue to melt and vaporize faster as more thermite pours in. I think these could be the right conditions to cause a steam explosion.
my guess for the thermite explosion is the sudden thermal expansion of the water causing the explosion. the same thing would've happened at a vastly larger scale, if the 3 technicians wouldn't have crawled in the lower levels of the Chornobyll powerplant, to open the valves of the feedwater tanks, to drain them. if the molten core at it's peak temperatures would've reached those tanks holding several ten thousands of liters of water, the sudden thermal expansion would've cause an explosion of a several kiloton TNT equivalent, and spread radioactive material much further than it already has been spread by the first explosion. to prevent the molten core from burning further down through soil into ground water, some coal miners have dug under the plant to install a heat exchanger. the temps of the molten core are somewhat comparable to thermite, it just burns longer and more steadily.
The reason why you never ever try to extinguish fire with hot water... Or in other words, if there's a fire in your cooking pot or pan, do NOT put water on it. The water can vaporise instantly and generates a steam/fire explosion. "it's a mystery" REALLY? The heat causes the ice to become steam, the steam spreads the thermite out causing it to burn faster, as it's basically becoming a dust explosion, which accelerates the heat production even more rapidly and making a massive feedback loop. Essentially, you're making a STEAM explosion combined with turning burning thermite into a dust explosion. It's POSSIBLE there's also some level of turning part of the steam into oxygen and hydrogen, adding to the explosion, but that's unlikely to be a majority component of the effect. "dodgy rifles" That's like calling the M-16 dodgy.
Funny how I always thought this was a legitimate science show when I was younger, and now seeing it again grown wiser noticing how much more show than actual science it is. Since when are bird bones as dense as human bones? And I'm sure they knew in advance that turning ice into steam instantly causes an explosion without having to test it as a myth haha But still a good way to get kids interested in science though.
The speaker and car would work with a song with alot of bass or sharp erratic bass drops a drum and bass the frequency is a constant vibration not enough to make the pin jump up and down just vibrate in place
Red hot iron reacts with water evolving hydrogen. So nothing strange in that a liquid iron causes explosions being poured in the ice. Firstly it causes massive steam and hydrogen production leading to explosive destrucion of the ice container. Pieces of ice, drops of liquid iron, water, steam -- all flies away. And eventually the hydrogen ignites.
many weapons are springless. an a R1 5 style r ifle is another example. without enough momentum the fire pin can't deflagrate the primer. shall be no deflagration unless the sks am-mo uses some bad pistol primer, or the vibration has more energy than a hammer hiting the primer
Interesting that they go to lengths to avoid saying the name of the revolver there. What's up with that? Usually they weren't shy about saying the name of a gun.
I have said this before. This is no different than ice violently cracking in your glass of water. Only different here is that the temps are more drastic, so it's a more energetic reaction.
I think thermite and ice made pressure cooker effect; hot thermite dripped inside and vaporized the ice and water vapor stuck in ice then couldn't stand to pressure and went boom😊
Why would they put the AK on some soft material? It won't vibrate as it should in some R gangster car with plastic everywhere coming off and vibrating like crazy. Plus the frequencies like that won't make a sudden big move that would force the trigger to move if the weapon hits something in te right way.
Perhaps the rapidly expanding water creates room in the thermite storage, providing more room for oxygen and thus more combustion, creating even more room, and so on and so on. In mere milliseconds that is. Kind of the same idea when you have a flame in a hot pan with oil or fat, trying to extinguish it with water is a bad plan for similar reasons. The decomposion theory is dismissed. Water never decomposes through heat (at least not in earthly conditions), but rather through electrical current
Its too bad they were using pristine guns, although understandable for safety reasons, but I've held guns that went off from the slightest movement just because the trigger mechanisms were so worn out they'd go off from simply tilting the gun downwards, and a good enough subwoofer with the right song and no safety would definitely set them off
Terrible methodology in the subwoofer gun myth. It's all about sympathetic resonance, which for a car, and a firing pin, would be from the beat of the music, not from the frequency of pure sound or the sound pressure levels in themselves. 🤷♂
@@wendella.4074 I think you may have misread my comment. I'm not saying it can be done. I'm saying the methodology isn't a sound one. Very different things. The principle behind the correct methodology has already been demonstrated in the Earhquake Machine episode, so in addition to using common sense and logic, there is nothing left to prove. It seems they couldn't remember what was learnt two seasons earlier when looking at this myth. If I used a different methodology and the result was the same, that would be completely pointless since it would neither prove nor disprove the original myth. principle
I always thought the Thermite vs Ice was a meeting of equal and opposite forces. The thermite can't melt the ice fast enough, and the ice can't extinguish the thermite. Something in that equation has to give, and so eventually the whole thing goes boom. I'm certainly no expert, but that's my guess.
Sks myth need thumps in the sound rap music gun shots hardbass action in music not hertz increase how do you expect gun to be shot purely from poor vibration. Need full bass vibration 0% bass --> 100% bass. Not slow increase
i noticed with all lot of your tests , you don't seem to follow the same environment as the myth, you didn't include a bass drum thump that takes advantage of the peak power of a sub woofer. Peak power is much higher than rms power and the thump of a bass drum moves a lot of air. the repetitive nature of music is not in your test . in my opinion , you proved nothing
"Adam's anatomically accurate avian appendage"
🤣🤣🤣
AAAAA
weird pfp
Rewatching these I’m noticing a ton of alliteration
"We blow it up so you don't have to." That could have been a great tagline for the show.
the thermite rain at the end was top notch
Imagine being under that. I wonder what it did to those cars. 👀
Yep that was pretty crazy. I wouldn't want to be caught outside the bunker in that even with an umbrella.
R.I.P. Grant Imahara
I still can't believe he is gone. I expect movie or music stars to go early but never did i think grant. So sad
Well said @Kevin72836 and @feelincrispy7053 - - and let's not forget the equally tragic loss of Jesse Combes.
Grant was an amazingly natural 'science communicator', both he and Jesse brought so much to Mythbusters in their own unique way.
Such a terrible, immensely sad loss. And one really feels for their families.
With the whole team it felt as though they were all as invested in the experiments as the viewers were, as though they were all as passionate about the show, and as interested in the outcomes as we were - and I don't think you can fake that enthusiasm just for the camera.
Furthermore, the interaction between the teams, during and between builds, and experiments etc, was all the more entertaining because it wasn't scripted, there was genuine laughter.
Rest now Grant and Jesse: you are so sorely missed, you will not be forgotten. And thank you both for your dedication, skill and enthusiasm. Along with the entire Mythbusters team you made Science accessible and S.T.E.A.M. cool.
Thank you all.
Zac Daunt-Jones.
I didn't know till now.
❤
Killed by Sterling Archer's third biggest fear... It can happen to anyone, anywhere, at any time. That's what makes it so terrifying 😳
the car sound gun one could still work. they need to play impulses & bangs, not frequency sweeps.
Like a hard drum and base with sudden random bass drops
Should have been ruski hard bass not just a single frequency.
Exactly. A sustained tone would be less likely to cause a gun to fire than a series of short, sharp kick drum sounds would. If you positioned the gun with its butt against the speaker, the kick drum would be like hitting the butt with a hammer. I can't believed they missed this.
@ThreadBomb I bet they didn't use a named banger of a tune due to coppy right the tapenup all the brands even on the heavy equipment they use even the rental company
If you had a vehicle model with a floor that moves more than most, it could potentially act as a resonating plate to shake the sks. There are also aftermarket seats that im sure a few gansters have in their cars and some aftermarket seats resonate more than others.
Not to mention they didn't go about trying to isolate the resonant frequency of the the firing pin in the correct way
Ironically enough, i used to work somewhere with an absolute moron of a HSE rep (safety guy). He just so happened to be a gun enthusiast who was missing a portion of one finger from mishandling a revolver.
I mean that’s like saying a machinist who lost a finger is a moron….. accidents do happen
@@lazygenie5616 I'm assuming he was a moron for unrelated reasons, and the missing piece was ironic for a supposedly health and safety guy.
@@nerd_nato564 Similar to a smoker doctor.
Thanks for continuing to upload these!
My uneducated best guess about "thermite + ice = explosion" thing is that a portion of the water ends up skipping the liquid state?
1) We start with ice with thermite on top, unlit
2) As we light it, thermite melts a portion of the ice (top layer) to water
3) Water (that's quickly becoming steam) and burning thermite mixture gushes over the sides & encapsulates the ice
4) Ice melts from all but 1 side now, all that water again quickly turning to steam, increasing pressure as heat is still increasing
5) We reach a breaking point where theres is a core of ice inside a hot & pressurized capsule of steam and thermite
6) Physics.exe goes "hmm this aint right" and and the ice *_instantly_* goes to steam, roughly 1600x the size
7) Profit
My initial guess is that the high amount of energy splits water into oxigen and hidrogen gas, which is very explosive. That's the same reason why sodium and other alkaline metals explode in water. Edit: Ok and now I kept watching and Jaimie said the same thing lol
@@MartoLun Hehe, still a good idea as well, even if others had it too ^^
Violent sublimation, definitely!
@@MartoLun i dont think so
all the hydrogen would need to form instantly, and even in chem labs we use the "knallgasprobe"(explosive gas check) where we create hydrogen to check for several diff molecules
this thermite explosion rather looked like a slag explosion
its when a company pours their still hot slag on wet ground
the temps for the splitting of water molecules isnt reached(slag max temp is 1400°C - usually they cool for a day before throwing it on the ground)
but the water gets evaporated fast enough to cause an explosion
you can look up vids of that and check the similarities^^
@@suicidalbanananana it's probably a good bit of both, but there *is* a reason why other metal fires aren't extinguished with with water, but with special foam. Hydrogen explosions' no joke
I suppose its just the ice turning into super heated steam that creates that reaction.
i think it's more likely that the molten aluminium in the thermite is reacting with the water/superheated steam creating a bunch of hydrogen
Exactly...... the thermite instantly flash boils the ice into superheated steam gasses that expands explosively...
If simple rapid gas expansion was to blame, then presumably it would be even more explosive with dy ice, which takes much less energy to go from solid to gas... But it doesn't. People always forget that aluminum is explosive, and it explodes with just plain water as well. It has nothing to do with rapidly expanding water vapor. The science is not well understood. Only in the last 5 years was the first paper published that explained the detonation of alkali metals with water. You could hypothesize that it's the same type of reaction. Aluminum, when molten, forces it's oxide layer to the surface. Thermite can get hot enough to decompose this oxide layer completely. Pure aluminum (no oxide) and water react like this, Al2+3H2O->Al2O3+3H2. This reaction occurs very rapidly, with the same E∆/t as dynamite. Just google the aftermath of aluminum foundry explosions. It's like the MOAB going off. Why people have a hard time replicating it with molten aluminum and water is because they typically pour the aluminum from a crucible into water. They are very lucky. Aluminum will very quickly develop an oxide layer as it is pouring, which limits the reaction severely. If you poured water into a large crucible, there's a good chance it will go boom. Probably with enough force to kill you and shater your neighbor's windows. Why thermite works eith ice but not water, is because thermite burns hot enough to decompose the oxide layer, but usually not while subjected to evaporative cooling. Of course, water dumped on thermite can cause some small partial explosions, and will shower sparks everywhere, but with ice, the water, and exposed thermite can come in contact without causing rapid cooling of the thermite, and lacks the plastic deformation characteristics that inhibit deformation of the oxide scale. Tldr, aluminum is explosive and reacts with water. The fact that it only works with ice is just a coincidence of physics.
Is that similar to why water makes grease explode? I read about someone who would toss ice cubes into a restaurant deep fryer and it got out of hand.
@@janiexoxo yes
Jamies explanation with the thermite makes sense when a thermal lance hits water that explodes too.
15:37 - Based on what I learnt in Physics and Chemistry in University, I have 3 Hypothesis for what happens with Thermite and Water Ice. 1) Like Jamie said, at 4,000°C, a lot of the water in the ice will decompose into Hydrogen and Oxygen, and because of the enormous heat present will recombine.
2) Water Ice contains a lot of trapped air bubbles. With the radiative heat from Thermite shining so much infrared radiation through the relatively clear ice, all these millions of tiny air pockets turn into superheated gas in an instant, with explosive result.
3) At 4,000°C the Water in Water Ice sublimates instantly, that is it turns from the State of being a Solid, skips the State of being Liquid, but jumps straight into becoming a Gas, a superheated, Dry Steam.
I believe that all these three hypothesis of mine are present concomitantly, and each one of them yields an explosive result on it's own. When they said what they were going to do, I knew the result would be explosive.
And let's not forget, that with 1), 2) AND 3) happening at the same time, for a split second, the Thermite will be spread into an AIR-FUEL MIXTURE! Air-Fuel Bombs are some of the most powerful bombs on the planet. However, this Air-Fuel is probably secondary to the first three reactions.
Great MythBusters Episode!!! 👍
I agree with the third theory how ice is turning into steam instantly and causing the explosion
you are wrong it is a coulombic explosion
@@fanman420 Indeed you are wrong. We are talking 4,000°C here. In order to create a Coloumb Explosion you would need to turn Water into PLASMA… And that doesn't happen until Water Vapor has reached around 100,000°C. You can't make that happen with any Chemical Reaction on Earth. In order to create a Coloumb Explosion, you will need to expel the electrons from the Hydrogen and Oxygen Atoms in Water. The Coloumb Explosion then takes place by the repulsive forces of the remaining positively charged Protons of the Atoms.
@@nelsondawson9706 It's more likely a combination.
@@fanman420 - You are in fact wrong. In order to get a Coulomb Explosion, you will need to transfer Water into the Fourth State: Plasma. That doesn't happen until Water reaches around 100,000°C. The reaction temperatures here are at most 4,000°C.
In order for a Coulomb Explosion to occur, you need to get Water into an immediate State of Plasma, which expels the Electron Clouds from the Hydrogen and Oxygen Atoms in Water. The repulsive force in the remaining Protons of the Hydrogen and Oxygen then will create the Coulomb Explosion. But you won't create that sort of temperatures with any Chemical Reaction on Earth.
22:35 American car, no hardbass music (just BZZZZZZZZZ), no vodka. Yu didn't do it right
Yeah that was really bad and a waste of time they F'd that one up
gunshot myth needed one more experiment. they should have put the gun pointing down resting on a metal surface. which would have made the gun to bounce and come back. now, by the time the gun is back to the surface, firing pin would be at the highest point i.e, there would be the most amount of gap between the trigger and the bullet. Now, if the next bounce is at just the right time and hard enough, the firing pin would be almost stationary and the gun would bounce with enough speed into the firing pin to set the bullet off.
41:32 the sound of the ice breaking in amazing
That deep *thud* it makes 🧊
Honestly setting off thermite with a matchbook is wild to me. Usually magnesium strips are used, just because the ignition temperature of thermite is actually quite high
That's what I thought? I wonder matches they use.
I think their thermite has such a small particle size that a match is enough to light it.
@@FilmsAustin Just regular ones. I used to work in a quality control lab for aluminium powder for autoclaved aerated concrete. One of the tests was igniting a small cup of the powder with a match and timing the reaction. It's really not hard. It's quite similar to iron wool. Finer particles, larger surface.
My theory of ice block exploding in thermite:
Ice consists of small pockets of air. This is the reason why water expands on cooling; it's due to these air pockets. So, when we ignite thermite, these air pockets start to expand drastically, and thus the explosion occurs
I think the SKS myth needed music to be a true test. But I also think it may have been a poorly treated rifle in a pile of rifles left loaded with safeties off. Pile shifts and some other item, maybe a bolt or a sight, glanced off of a trigger n set off 1 rifle. Which set off another and so on. Perfect weapons and engineered sounds are no match for gangster stupidity.
The rifles could've also been stored vertically, fallen from vibrations and fired.
If, as the myth says, the rifles were in the back of a car, then it is far more likely a bump in the road is what set them off. The music was likely incidental. SKS rifles, especially poorly maintained ones are known for this after all.
@@Cheynanigans__ Thats what I figured, kinda hoped they would see if dropping or slamming the butt of the rifle into the ground would set it off. I figured that might just be a massive safety hazard, hence why it might have been ignored.
My thoughts are the same music would be far better that sound wave forms!!!
Well, we know an SKS can missfire if you hit a bump or things like that. But the myth was about sound firing the gun, not about a bump. I am sure you can bump an SKS in such a bad way that it will fire.
It still gets me that Frank is questioning everything after that thermite explosion 😂
Every single episode I watch makes me think, that these guys and gals had _THE_ bloody best job on the entire planet.... and that includes astronauts etc.
You know, I keep seeing a Tide commercial that features Kari & Tori and the Mythbusters logo... Every time I see that commercial, I wonder if the show will be revived with those two... 🤔
Check out the White Rabbit Project.
They did 2 revives and both failed
- First one was like half a year after the original show stopped, some sort of "hunt for the new Mythbusters" that featured a bunch of youtubers competing to become the new Mythbusters (check out "safety third" podcast about it featuring a few of them, apparently that was all kinds of weird & rigged)
- Second one was fairly recent, some kind of "mythbusters for kids" with Adam Savage & Tory Belleci
Neither of these were really aired internationally, only a few countries got to see them, but it's probably for the best as both honestly did the original a disservice, you're not missing out if you haven't seen these.
There was also some show from Kari & Tory (i wanna say for 'Spike' channel?) that had a similar vibe but didn't have any official relation to Mythbusters & only lasted like 2 episodes, its possible they got shut down by Discovery.
The fact that they've sold the rights now (this channel actually owns Mythbusters) means there probably won't be a third attempt.
white rabbit already failed. don't get your hopes up
If they couldn’t get it back with white rabbit they’re not going to stand a chance now that Grant is gone as well as Adam and Jamie not coming back
@@LucasCarter2 hey, I can dream, can't I? 🙃
I can't stop thinking about serving people some well cooked and seasoned deranged chicken thing 😂
They should have tested the thermite on dry ice blocks. Would be interesting to see it explode as well and the CO2 perhaps suffocating the flames in the centre immediately.
yes i think they should have tested it with water as well
It would not suffocate the thermite since it is an exothermic reduction-oxidizing reaction. Meaning that oxygen does not come from the surrounding air but from the oxidizer in the mixture. Such reactions can't be extinguished by normal means like water or suffocation
Thermite provides its own oxygen. It's iron oxide and aluminum powder turning into aluminum oxide, molten iron, and massive heat. No atmospheric oxygen required. It can even burn in space!
15:37 - "noone really knows"? Seriously? What happened there is simply a steam explosion. If you've ever seen molten hot molten metal meet a wet charge you know exactly that this happens. No, there's no decomposition of the water. Hot molten metal simply hits the ice, ice flashes to steam under the metal, has nowhere to go, and explodes from the expansion pressure. Simple as that.
I think they may be looking for more complicated explanations than needed. Water turning in to steam expands to around one thousand times it's volume; So IF the thermite actually burns hot enough to not just melt but even turn it in to steam fast enough, it will be an explosion.. (or proper terminology would probably rather be "uncontrolled decompression") inside of the ice and the ice will itself around the the extreme pressure.. (Like blowing a fire-cracker in your hand.. Even a small one can ruin your hand IF you clench it around the cracker, but if it lays flat yon your open palm you may not even really get a scorch).
another similar situation is why you shouldn't throw water at an oil fire in your kitchen.
water vaporizes and splashes the oil around, which catches fire more easily, leading to a nice fireball
But in that case it would work much better with water that ice, which is not the case.
@@stasi0238 .. Not sure what you mean; The problem with trying to get water to "explode" by heating it is that.. WHEN it turns hot enough to turn to steam it DOES turn to steam and.. leaves.. AND water turning in to steam takes a lot of energy, which is why pouring water on fire is such a good way to put out fires, it cools down the fire.. But water CAN "explode". You heard of boilers exploding?.. What you need to do is to keep the water around for long enough time so it gets to build up pressure, so instea of just fractions of a gram turning in to steam a LOT of it turns in to steam at the same time.. That is where the ice would come in; It becomes the solid encasement that keeps the water in place so enough of it will decompress at the same time.
It's like a fire-cracker. A small fire-cracker in the palm of your hand won't even burn you.. but close your hand and you will lose your fingers. It's about whether the expanding matter has some place to go or if it has to "force" it's way.
@@rogerlundstrom6926 I'm not stupid lol. I'm talking about experiment in question. Thermite on ice violently explodes, but thermite that goes into water doesn't. If you are talking that pressure builds up in ice better than in water, remember that thermite is the source of heat so the nearest ice particles to thermite are turning to steam then further water and further lays ice, so there is no way to pressurize the steam. My opinion is that either aluminium or iron in the reaction is hot enough that it reacts with water as in X(metal) + H2O = oxide/hydroxide + H2. We can see this reaction working at room temperature with sodium or potassium and we can see similar explosion. The question about water not working makes sense then because hot metal can't react well with water since it creates a steam barrier better itself and liquid metal, and it makes sense that ice can't move like the water to allow liquid metal not to touch it.
@@stasi0238 .. So.. it's Interesting that you START by claiming to not be stupid. and then follow up by proving you didn't get my point at all. but.. I'll TRY to rephrase my statement again... Just to say; I have NEITHER done experiments, NOR done the maths to "know" whether this is true, I am ONLY relying on occhams razor: IF you already can explain things with what you already know, then stop trying to look for strange other explanations.
So. .The thing is.. Water expands when it turns in to steam..thousand-fold.. this decompressin is EXTREME and creates a LOT of power.
BUT... If you (f.ex.) boil water.. then.. it doesn't explode.. the REASON it doesn't explode is because one single water-molecule turning in to steam.. means.. it turns in to steam and DOES require a bit more space.. However, that ONE molecule has expanded a LOT! but it CAN traverse and expand, and so on.. QUITE a bit.. BUT.. it's expansion ALSO will cool down all the water that surrounds it.. at the time it is endothermic.. it sucks out the energy of the water around it so that water is COOLED.. (as I mentioned about why water IS the way to fight fires).. It SUCKS energy.. it COOLS it's surrounding.
But more importantly: WHEN talking about a pot boiling.. the actual.. water that turn into gaseous form.. it.. will create bubbles in the pot.. and.. rise.. and.. cool down everything else.. and.. then.. float to the top.. and.. just go out.. it may have expanded a LOT but it is just a FRACTION of the actual amount of water in the pot.. and.. it cools down the water.. this is why a boiling pot IS 100 degrees centigrade and will never never ever PASS it.. you need to put it in a closed system for you to be able to heat water BEYOND 100 degrees centigrade.. if the water that passes this temperature is able to leave then.. it will leave.. and not affect the actual full system too much.... beyond actually COOLING the water.
HOWEVER.. It's a matter of "speed".. and.. Even IF ice could melt.. it's about the speed of light.. Energy traversing can't go faster than the speed of light.. .so if you FLASH!!! heat ice to the point BEYOND melting.. then.. that part of the equation means it takes 1000 times more space than it used to take.. BUT if the actual "Ice" keeps it in.. then.. INSTEAD of water reaching the actual boiling temperature CAN'T easily disperse and just.. go into the atmosphere. then.. the pressure will build.
the consequence of pressure building IS.. an uncontrolled decompression.. (Which is VERY similar to an.. Explosion.. MOST people wouldn't know the difference in the first place).. .. So.. SERIOUSLY.. IF you have an ice-block, and water SUDDENLY turns in to steam in the middle of all that ice.. it WILL create an explosion like event. .but.. if it instead was happening in the mid of WATER then it.. would just turn in to it's gaseous form and be FREE to escape the medium within which it was "trapped".*
and I am not even trying to say that "I am right".. I am JUST saying that the most OBVIOUS solution to this conundrum doesn't even seem to be what people are pondering at all. they are IGNORING the thing that is in clear sight and trying to invent new solutions.. So.. I may ABSOLUTELY be wrong.. I don't question that.. I only say that.. you CAN solve this without resorting to zebras.. and.. you should look for ways to check whether the things that we ALREADY know of (such as exploding boilers) ISN'T the reason... before trying to claim it is "unknown" behaviour.
The most likely way for the SKS myth to be true is if the guns were sitting against the cone of the speaker. A big bass note will jolt the entire gun with enough force for the pin to set off the primer. It would be like dropping the gun. Subwoofers are often in the trunk and large, illegal rifles are also often kept in the trunk and out of sight. Gangsters probably don't have cases that secure the gun, but have them just laying there.
The issue with the SKS myth as tested s that a firing pin that large isn't going to vibrate with enough force, if at all. You need intermittent heavy bass notes, which shake the entire rifle once. Inertia is probably the culprit if the myth is real. The gun moves from the vibration, the firing pin is floating and isn't moving with the gun. As soon as the pin hits the end stop, it gets shot in that direction, hitting the primer, firing the gun
I was thinking the rifles could've also been stored vertically, fallen from vibrations and fired. Far more likely with music than pure tones, it was an odd choice not to use music.
@@Cheynanigans__ Tones can easily be controlled, so they chose that.
Given the design issue with the bolt, the rifle needs to be moved forwards and backwards really quickly and violently. Falling over wouldn't really do that.
The thermite explosion I did expect to be true as a welder I made products for tata steel (iron smelting facility in the netherlands)and their biggest nightmare wash moisture in contact with molten steel the quick forming steam is causing the explosion
🤣that hunting pistol reminded me so much on the Hellboy props Adam built 🤣
It's so hot that the test plates blemish and bubble. That's mental.
The ice flashing into steam is what causes the explosion, would be my opinion. Just like the water heater exploding.
13:13 Fun fact: the plexiglass bs they are hiding behind was found to be completely inadequate during the last season.
"Show of hands" got me. I could not stop laughing.
The Feral Melons would be a great name for a band.
guns in trunk woofers in back of back seats blowing their air at the guns moving the firing pin ... back of my old speakers right above the air port was a big warning " DO NOT PLACE 18 INCHES TO A WALL OR STRUCTUAL DAMAGE WILL OCCUR" ... it's the air being pushed around note the music ...
When chicken fingers gets a new meaning 😂
What is the SKS shook off the seat and the thud of it hitting the floor set it off.. and it's told as the sound system setting it off.. OR it could have been a really worn pin that moved more than usual
16:17 experts at work “we don’t know” … in metallurgy, this phenomenon is well-known and is referred to as a "steam explosion" or "molten metal-water interaction."
lmao that square speaker scam
10:37 Bro walkin up like he's about to sell them some crack 😆
16:00 bookmark
If driving around through bumps and stuff does not trigger the gun, why should frequencies be able to do so?
I love the frankenchicken
I mean if vibration that small causes the fire, jeeps traveling on gravel would look like fireworks
A song of ice and fire.
many different theories regarding the "exploding thermite", I personally would attribute it to "liquid Iron" running down into a ""puddle"" (enclosed volume) of water... Any one familiar with casting metals knows what that can do...
42:59 why does it send "flaming" ice raining down?? Amazing.
It's either ice covered in the still-burning thermite, or droplets of liquid thermite and/or metal falling around.
Even my old Ruger .357 Magnum revolver shot visible fire out of the front sides of the cylinder. Never wanted to try putting my fingers up there.
I feel like what they needed to do for the guns in the car was to blast some Heavy Metal or Death Metal. Something with massive base and severe booms to really make those pins bounce and jolt with real force. What they were doing was only creating small short length vibrations. Not enough movement or force to really make that pin slam the bullet. Need those sudden abrupt hits.
By far my favourite TV show of all time!!!
reason why ice explodes, is basic physics. it's release of energy. explosion is rapid burning. for example digestion is form of burning, it's very slow burn, that's why drinking strong alcohol makes you feel warm inside, cuz it burns inside your body, but not with a flame. it's slow burn.
flame is normal burning, what most people consider burning and explosion is very rapid release of energy, it's all the same thing, it's release of energy from matter that is storing energy.
ice can be turned into steam, which would occupy a much larger area due the fact that particles move much faster and can freely move. it's just like propane tank, it's gas compressed so much that it turns into liquid or you can cool the gas and it will turn into liquid, it's basic physics. to me it's common sense.
BUT WHY DOES ICE EXPLODE? as i said, it's release of energy. that ice gets turned into gas almost instantly. thermite is so hot that it eats thru ice, reached the middle and turns ice into gas almost instantly, but that gas needs somewhere to go, so it explodes as there's so much released energy and it just needs to go somewhere.
it's exactly same principle as why if you drop water into hot oil, it starts to "explode" on microscoping levels. i'm sure anyone who cooks has experienced it, when they put some oil on frying pan and heat it up, then if you put food on it, it starts to "sizzle" and bits of oil/water starts to fly off the frying pan, it's exactly same principle. liquid is turned into gas almost instantly and this energy has to go somewhere.
it's not about hydrogen being extracted and exploding, you don't see a big fireball, it's just release of energy.
here's how you can confirm it:
1. get vacuum chamber and put pressure gauge in it
2. put block of ice into vacuum chamber and let it turn into gas (water will boil in vacuum as there's no air pressure to hold it back).
3. wait until entire block of ice has turned into gas and pressurized the chamber
4. measure the pressure it generates
5. now calculate how much pressure this gas (ice turned into gas) would produce if you would compress it back into size of ice block
6. make pressurized tank and fill it with same pressure as the ice block turned into gas made
7. now violently pierce that tank and it will generate same kind of explosion (release of energy)
in theory it should be same thing, but i don't have equipment nor money to make this test. i'm fairly sure explosion will be exactly same magnitude.
they doing it wrong with SKS, i think the myth comes from the fact that weapon could have been placed right against the speaker under right angle and it doesn't necessarily have to be loud noise, it's like they said with wine glass shattering. you need correct frequency under right angle. you're not going to shatter the wine glass with random noise from random angle. you can't "scream" at wine glass from bottom or top, you have to do it from side, which is weakest point.
same applies for SKS pin. i'm thinking gun was touching the speaker or surrounding area that was violently vibrating and not just noise, but MUSIC. in music you often have places where it kind of "builds up" and then it hits really hard BASS, so the pin might have been moving back and forth and then that bass moment is what knocked it forward.
i'm 100% sure it's possible, but very unlikely. you don't only need specific frequency, but specific pattern that would knock the pin and also right angle and right placement.
if it would go off so easily, then there would be more reports of it happening. it's definently possible, but under correct circumstances. it's literally 1 out of a million or even a billion.
i've seen some really weird stuff hapenning. something works 10000/10000, but that 1 out of 10000 it just fails for no obvious reason.
it's the butterfly effect, something very tiny can cause huge effect and that's what you looking at there.
I think the thermite and ice explosion could be explained with a steam explosion. The initial termite to hit the ice would rapidly cause the ice to melt then boil. the boiling water/steam would then try to rise through the downflow of molten metal causing it to rapidly heat and expand. Ice would continue to melt and vaporize faster as more thermite pours in. I think these could be the right conditions to cause a steam explosion.
my guess for the thermite explosion is the sudden thermal expansion of the water causing the explosion.
the same thing would've happened at a vastly larger scale, if the 3 technicians wouldn't have crawled in the lower levels of the Chornobyll powerplant, to open the valves of the feedwater tanks, to drain them. if the molten core at it's peak temperatures would've reached those tanks holding several ten thousands of liters of water, the sudden thermal expansion would've cause an explosion of a several kiloton TNT equivalent, and spread radioactive material much further than it already has been spread by the first explosion.
to prevent the molten core from burning further down through soil into ground water, some coal miners have dug under the plant to install a heat exchanger.
the temps of the molten core are somewhat comparable to thermite, it just burns longer and more steadily.
I think the guns in the myth fired due to tipping over then the music itself.
The reason why you never ever try to extinguish fire with hot water... Or in other words, if there's a fire in your cooking pot or pan, do NOT put water on it.
The water can vaporise instantly and generates a steam/fire explosion.
"it's a mystery"
REALLY? The heat causes the ice to become steam, the steam spreads the thermite out causing it to burn faster, as it's basically becoming a dust explosion, which accelerates the heat production even more rapidly and making a massive feedback loop.
Essentially, you're making a STEAM explosion combined with turning burning thermite into a dust explosion.
It's POSSIBLE there's also some level of turning part of the steam into oxygen and hydrogen, adding to the explosion, but that's unlikely to be a majority component of the effect.
"dodgy rifles"
That's like calling the M-16 dodgy.
20:40
i didnt know they were stand users
10:20 You know a car is big when even the Americans are joking about it.
lol
Ah, good ol' Frank (aka Tackleberry) is back
31:33 doesnt cooking the bones weakens then?
the internal water boiling whould damage internal structures
the mixtures whould change and Stuff
The lourd music could have made the gun fall, and I've seen guns unload when dropped
And now I’m craving chicken fingers
Funny how I always thought this was a legitimate science show when I was younger, and now seeing it again grown wiser noticing how much more show than actual science it is. Since when are bird bones as dense as human bones? And I'm sure they knew in advance that turning ice into steam instantly causes an explosion without having to test it as a myth haha
But still a good way to get kids interested in science though.
Still baffled they didn't use a blast screen for the car gun test
Adam's chicken hand is uncanny.
The speaker and car would work with a song with alot of bass or sharp erratic bass drops a drum and bass the frequency is a constant vibration not enough to make the pin jump up and down just vibrate in place
Red hot iron reacts with water evolving hydrogen. So nothing strange in that a liquid iron causes explosions being poured in the ice. Firstly it causes massive steam and hydrogen production leading to explosive destrucion of the ice container. Pieces of ice, drops of liquid iron, water, steam -- all flies away. And eventually the hydrogen ignites.
many weapons are springless. an a R1 5 style r ifle is another example.
without enough momentum the fire pin can't deflagrate the primer.
shall be no deflagration unless the sks am-mo uses some bad pistol primer, or the vibration has more energy than a hammer hiting the primer
all the rifles seem to have been resting on very soft, energy-dissipating, vibration-dampening surfaces :(
12:30 that's the biggest frown ive ever seen on a man
Interesting that they go to lengths to avoid saying the name of the revolver there. What's up with that? Usually they weren't shy about saying the name of a gun.
Full episode in good quality...is it christmas ? ;)
I have said this before. This is no different than ice violently cracking in your glass of water. Only different here is that the temps are more drastic, so it's a more energetic reaction.
Wouldn’t say my ice “violently” cracks when i add it to water, “gently” cracks, sure… hardly a violent event
@@AjHxze-lx4jn Take ice from a deep freeze, not the fridge freezer and put it into warm water. It will indeed violently crack.
Decapitation is just removal of your head. Hence the “capit” part. Amputation is the word you want… :)
I think thermite and ice made pressure cooker effect; hot thermite dripped inside and vaporized the ice and water vapor stuck in ice then couldn't stand to pressure and went boom😊
Is that revolver a .454 Casull?
Either that or a Smith & Wesson .500..
It is Smith & Wesson Model 460 ( .460 Magnum )
Why would they put the AK on some soft material? It won't vibrate as it should in some R gangster car with plastic everywhere coming off and vibrating like crazy. Plus the frequencies like that won't make a sudden big move that would force the trigger to move if the weapon hits something in te right way.
Perhaps the rapidly expanding water creates room in the thermite storage, providing more room for oxygen and thus more combustion, creating even more room, and so on and so on. In mere milliseconds that is. Kind of the same idea when you have a flame in a hot pan with oil or fat, trying to extinguish it with water is a bad plan for similar reasons.
The decomposion theory is dismissed. Water never decomposes through heat (at least not in earthly conditions), but rather through electrical current
Should Jamie have fired off the fuse ingniter when his boiler suit was covered in thermite?
I feel obliged to note you can cook with sound.
5:05 this ended up becoming the peephole at M5
Just drive the car on rough ground?
Ouchie that crack on the nose
Its too bad they were using pristine guns, although understandable for safety reasons, but I've held guns that went off from the slightest movement just because the trigger mechanisms were so worn out they'd go off from simply tilting the gun downwards, and a good enough subwoofer with the right song and no safety would definitely set them off
They didn't use Russian hard bass and they failed experiment. No one use 'scientific tone mix', but thing called music...
lol
Terrible methodology in the subwoofer gun myth. It's all about sympathetic resonance, which for a car, and a firing pin, would be from the beat of the music, not from the frequency of pure sound or the sound pressure levels in themselves. 🤷♂
It wouldn't fire anyway
@@LollipopUnicorny Probably not, but we'll never know since it wasn't properly tested.
@@hakonsoreide Ok, go for it. Test it yourself and video doc it. Prove your words
Are you implying you think the methodology used in the episode was the correct one?
@@wendella.4074 I think you may have misread my comment. I'm not saying it can be done. I'm saying the methodology isn't a sound one. Very different things. The principle behind the correct methodology has already been demonstrated in the Earhquake Machine episode, so in addition to using common sense and logic, there is nothing left to prove. It seems they couldn't remember what was learnt two seasons earlier when looking at this myth.
If I used a different methodology and the result was the same, that would be completely pointless since it would neither prove nor disprove the original myth. principle
I always thought the Thermite vs Ice was a meeting of equal and opposite forces. The thermite can't melt the ice fast enough, and the ice can't extinguish the thermite. Something in that equation has to give, and so eventually the whole thing goes boom. I'm certainly no expert, but that's my guess.
So it exploded because "something had to give"? What an explanation my man. It´s a steam explosion.
hmm molten aluminium and water , what could possibly go wrong lolz
its a high steam explosion rapid heating of the ice(water) into steam
42:16 covered in thermite and sets off a fuse
th-cam.com/video/9Gc4QTqslN4/w-d-xo.html
well they proved can burn out a speaker
Would like to see the thermite on a big lake!
shouldve played some music not some random test sound.
It's summer now, but I do have access to a lake and know how to make termite, I really want to try it next winter.
Either way, hot iron or hot aluminium will react with steam to produce hydrogen…..
NoiCE
Sks myth need thumps in the sound rap music gun shots hardbass action in music not hertz increase how do you expect gun to be shot purely from poor vibration. Need full bass vibration 0% bass --> 100% bass. Not slow increase
Probably melts in and creates a pipe bomb of sorts.
You played everything but music 😔
i noticed with all lot of your tests , you don't seem to follow the same environment as the myth, you didn't include a bass drum thump that takes advantage of the peak power of a sub woofer. Peak power is much higher than rms power and the thump of a bass drum moves a lot of air. the repetitive nature of music is not in your test .
in my opinion , you proved nothing
11:25 This is the cringiest cringe that ever cringed... it is actually painful...
Magazine. Not clip. Really!