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From: integrajoey
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  • as soon as the thermite is heated it is classed as a molten metal and when you bring water (ice) into that you get a cold force meeting a extreme heat cuasing a explosion due to rapid changes in the materials its just like a blast furnace they say never to go near one with water for a reason

  • perhaps the crazy amount of heat is so intence it vaporizes the ice so fast that it's like an explosion, only realy it's just super fast expanding water vapor

  • Is it wrong that I want to see the coffee creamer cannon loaded with thermite....

  • for SCIENCE!

  • Exploding aliens.

  • He protects all of his body again the possible sudden eruption of fire; but he doesn't protect his hand, which are ACTUALLY going to come in contact with it?

    Nice, real nice!

  • Simple water changing from a solid to a gas at that rate has to expand very fast. The bucket is why it works. It gives the gas a place to be compressed. They should try it without the bucket and just burn the thermite powder right on top.

  • It's not a mystery at all. What happens in our atmosphere when cold air meets hot air, we thunder. The heat from the thermite met the cold air and not to mention the little bit of gasses that comes from the ice also played a roll...it's called pressure! Hope that helps!

  • @homebrewelectronics That's what I was thinking too. :)

  • NOTE THAT JAMIE HOLDS HIS BERET DURING THE EXPLOSION...

  • Possibly a steam explosion.

    Happens frequently if some poor soul in a foundry decides to use a fire hose to cool off a ladle. Stream of water hits (and penetrates) the molten iron rather than the side of teh ladle.

  • Looks to me pretty simple. The Thermite boiled water faster than it could escape, pressure builds until there's too much stress for the ice to contain, and it explodes. The force of the first to detonate shocks the other pockets in the other blocks enough they all detonate, seemingly simultaneously.

  • in my opinion.... they allready said that the fire was approx. 4000 degrees fahrenheit. With that temperature, quite alot ice will melt instantly and cook. creating steam which contains oxygen, enhancing the process which causes the big explosion.

  • i knew it would explode before they showed it. just because of the way they edited the video together with the guy going i dont think it will explode they but gunpowder in there ect theres no way they would put that in if wouldnt explode

  • yeah it think it's the mixing of extreme temperatures try for instance to throw a ice cube into boiling water. you will see that before ik melts the ice cracs violently in 2 then it melts.

  • 15 people was right next to the thermite and ice

    

  • 0:00 wha... ah "T", yeah it's just T...

  • Mix two extreme tempratures togehter and thats what you get....it was proven well and truely before this ever happened...and yet none of them picked it...makes me think wether or not they have studied reactions.

  • Why is there a mythbusters bucket in my pool?

  • this is the first time i saw Jamie SCARED!!

  • Comment removed

  • fuck, i thought that was termite

  • I... AM...A ... BELIEBER...

  • Rapid thermal expansion.

  • what if the high temperature of the thermite splits the water in to oxygen and hydrogen and you get double reaction, the hydrogen burns too which that thermite is still rising the temperature and making an explosion instead of fine hydrogen burning.

  • @hristijank2 dumb ass!!!!

  • @BROOL23 that what makes you be after commenting on my comment

  • nice

    +1 like

  • What I learnt from this video, is that one sheet of MDF wood over the top of a blast screen will protect you from hot thermite. @krupza

  • It would be pretty simple to find out if its steam or thermolisis. Just try it with dry ice. since its CO2 not water it wont create hydrogen or steam. if it still explodes it must be something else

  • @DrPrandom

    Good job, nice thought.

    +1

  • Holy Shit :D xDDD 

  • dope ice in to hot water ice crakes now do that with a higher temp ice explodes =P theres my explonation for it crood but true

  • 4:03 >:[

  • According to wikipedia zincs boiling point is 907 degrees, and thermite burns with 1370 degrees more...

    thats 2277 (hehe thats my user numbers, but honestly i didnt know that when i created it :D) degrees, and guys thats CELSIUS:.. in fahrenheit its about 1600 + 2500 thats 4100 fahrenheit aproximately.

  • jea letz do that at home :D

  • Depending on the type of thermite, I'd say the decomposition theory is probable.

    Water will undergo thermolysis at around 2200 degrees C and will undergo rapid thermolysis at around 3000 degrees C, which are not unheard of temperatures for thermite reactions.

    Looking at the thermal-vision, the ice blocks almost instantly turn the same color as the thermite after the mixture took the flame, and it took a few seconds for the explosion to occur.

    However, I'm not doubting the sublimation of water

  • My thought: the bucket burnt through (as we know is possible from the car experiment). Thermite dripped onto the ice, creating steam that went into the opening in the bucket and forced the thermite out the top, aerosolizing it and causing and explosion, as jamie said.

  • Sublimative explosion?

  • it may just be my opinion, but isn't there a reason why hot cups are not supposed to be placed on the freezer? because they crack. i think its just the collision of two extreme temperatures making the ice crack @ a much higher ratio. i think it would be even cooler if instead of using a bucket they would just have drilled a hole into a big cube of ice.

  • how about using dry ice because then there will be no hydrogen to explode and you could look at other reasons?

  • Thermite Vs Liquid Nitrogen.. would there be a different reaction?

  • @SmokeCentral its been done by braniac

  • I can't believe they don't know what a steam explosion is. There's a reason that factories that work with flammable metals don't have water fire suppression systems.

  • Can this be done by expanding gasses from the ice? or is the pressure too low from the open space?

  • I thought he sad "retarded FBI man"

  • Aliens.

  • try it with nitrogen to find out xD

  • Now we know how to proceed in a war agains Iceland...

    Seriously, i think this explodes because the fast temperature change, causing the fast transformation from ice to steam without come to water and then to steam, just a thought.

  • @DIZAZZO you do realize that iceland is all grassy... right?

    Greenland is iced over in almost a permafrost....

  • @3283Anthrax

    Don´t you see?

    Termite vs Ice -> Termite vs "Ice"land...

    Just a joke...

  • what i think happenned in the video, the thermite burned through the bottom, and melted some of the ice into water and went out, and then the untouched and unlit thermite, reacted with the water and exploded as an unstable substance always does

  • if u combine that with war, i bet they could be the best mines on the battle field. :D

  • Probably the ice turning rabidly to steem :)

  • Looks like the 2 Myth Busting homos and the FBI weirdo owe the internet boys an apology

  • @AdrianMX6 I agree

  • @rocaho001 I think the point is that the fire suit takes a while to burn through - ie, if Jamie does get hit, it gives him time to get away and get the suit off before the burns are serious. It won't prevent him from getting serious burns (I think) but it should help to stop him from dying.

  • @scarabeetle101 aaaah makes sense

  • thermite will burn through an engine but not a fire suit? Or is the spewed stuff much less hot?

  • @rocaho001 i think it cools very rapidly

  • @DontBeSoFrAJL Yea I thought same, the hottest part is burning down

  • 4:03 not bad 

  • not totally sure but there is a show in uk called "brainiac" which could have done this before mythbusters

  • I would guess it's the steam blowing the thermite into a cloud.

  • Did he say retard fbi man?

  • @ProxySpiderHacks Retired.

  • Does any1 know where to get this stuff

  • Now try it with dry ice!

  • One way to test Jamie's theory would be to take a pile of thermite, ignite it, then hit it with a blast of air or something. I'm surprised they didn't try that as part of the investigation

  • @thatghillyguy that wouldn't work cuase air is always present so what your technically saying is that they ignite thermite which doesnt further the cause of science. air is composed of oxygen, nitrogen and other trace gases so that experiment of yours would be redundant.

  • @lotharsredemption Dude, you trollin? Anything that burns or explodes is significantly more volatile when it's effective surface area is increased. It's why you dont pour water on burning cooking oil and possibly the reason why thermite and ice causes an explosion.

  • @lotharsredemption Also, the experiment is NOT pointless because even if it doesn't yield hypothesized results, it will at least disprove some things. Thus, SCIENTIFIC METHOD YOU NOOB

  • called sublimation |

    \|/

  • @j4wb0n3 at one atmosphere, the sublimation of water is not possible. That's just judging by the phase diagram of water. If anything, it is just rapidly transitioning from solid to liquid to gas.

  • i think it might be the sudden vaporization of the ice

  • @lazyazn147 Thats exactly what they said in the video, but he thought that it couldn't be true.

  • @lazyazn147 AKA, an explosion.

  • Scorpion vs Sub Zero !!

  • wouldn't the "matches" cause the boom? like they do put two matchbooks in the thermite, and set that off. plus then they added four and their boom did look bigger. im just saying.

  • @pman0391 when they did the penetration test with the steel plates they used matches and there was no explosion... what say u now

  • @pman0391 mtaches by itself can only cause i fireball and thats wen you have over 30000 of them (mythbusters proved it) so the only culprits are the ice and the thermite

  • Very nicely done boys! I am so grateful that you have the time to do so many things which I also would like to do. But I don't have a handy bomb range and Frank Doyle. I am liking that you can do it for us. Thanks one and all!

  • (Fe2O3+2Al -->2Fe+Al2O3+heat) if you're using ordinary "red" iron oxide (ferric oxide possibly the H2O decomposes so fast with the heat the O is liberated and you get a H gas explosion ?

  • Penetration test...heh...thats what she said.

  • Outhousestanding!

  • i definetly prefer the british comentator over this cocky titwank

  • I would say it may be as simple as suddenly heated (super-heated) water producing lots of steam. This steam blows molten thermite all over the place. Whatever happened it is two thumbs up!

  • @wb5rue I'd absolutely agree. Steam explosions from molten metal touching a damp sand mold are one of the oldest industrial hazards. A fairly small steam explosion could then blast the thermite powder and molten metal upwards in a highly combustible cloud, prompting its own blast and creating a fireball.

  • isn't it super heating that makes it explode

  • Hydrogen is produced when steam is exposed to red hot iron and brass will also explode if water hits the molten metal and the oxygen in the water also burns the metal adding heat to the explosion as anyone who casts metal will tell you.

  • It was hydrogen 4 sure.

  • 14 people exploded

  • the bucket is over the ice, the thermite is burning a hole through the bucket and making a hole in the ice, the ice is melting very fast and the termite is burning causing the hydrogen and oxygen around the ice escaping fast to explode.

  • When counting the number of plates it burned through, did they include the bottom of the bucket as well?

  • Amazing stuff.

  • They've got lots of money. Should have used a better way to set it off. Matchbooks? GHETTO

  • @SecondAgeOfReason ya we do, its called a sparkler, like a birthday sparkler, i thermite weld the railway,the way they do it thats a weird way 2 do it, just add a sparkler and walk away lol>>>they have lots a money and research y didnt they ask thermite welders on the railway to do it safely lol, cool video though!!

  • @MegaMike5555 I know of the other ways to set it off. They may have had some reason for doing it that way, but I don't know.

  • 6:15 Ice Proof...Lmao..!

  • Ohh, crap.. I thought they're testing Termites.. you know, those insects that eat wood. LOL

  • A part of the bucket melted and touched the ice. Temperature changed too rapidly and resulted in a blast.

    You'd get a similar effect by throwing a bottle of water into a ton of molten steel. Blasts like that have killed many workers, and even today working with molten steel is considered dangerous.

  • @SinfireTitan That theory juts doesn't have a leg to stand on. Temperature change does not cause explosion in LIQUID material, only glass and metal. That was CLEARLY not just the vaporizing of the water, there was a very loud bang. If it was vaporizing you would hear a big hiss. Working with molten steel is considered dangerous, even today?? Are you sure about that? I had no idea!!

  • @Stillwater900 Actually steam explosions can be very loud. A quantity of water instantly vaporizing does make a bang, or can. I've heard it, kind of scary too!

  • @Stillwater900 By your reasoning, a water heater or boiler could never explode because the material is liquid. Nor could a rocket explode, because it uses liquid fuel.

  • @ELuhn Those examples you gave a flawed, boilers explode because of the pressue of water vaopr, rockets don't explode, but they are fueld by directed escaping gas FROM the oxidized fuel

    What we see in the video is an expansive explosion, whatever happens is happening very quickly. Putting a piece of hot metal on ice will never cause it to explode

  • Did hyneman jump ? :O OMG

  • Comment removed

  • I might be a bit chemically naive, but could the reaction be similar to that of a grease fire explosion when water is added.. since water expands into gas at a rate of like 700%, is it a possible scenario with the thermite?

  • It is a phreatomagmatic eruption. Just google thermite phreatomagmatic water...

  • Holy crap a mythbusters myth which was actuly true :)

  • Please add more episodes to netflix. I'm running dry damit.

  • at 4:01 it sounds like retard but its really retired..

  • Terrorist time. I dont need c4. I just need thermite and a truck of ice

  • Well what about the actual thermite reaction? Aluminium is the more reactive compound in thermite, so it "pinches" or takes oxygen molecules from the iron, and if you know anything about metal fires, if you add water to hot iron you produce hydrogen gas, thus creating an explosion, perhaps?

  • i thought you needed magnesium to ignite thermite?

  • If no one knows how it works chemically then who discovered it? And do they look like two face?

  • I have never, in all my life, seen someone with such an intense frown as that FBI guy at 4:03 and around 4:13.

  • @derekxnl jeff dunham - walter .... :D I think that's his big idol :D

  • @derekxnl

    After all the frowning n shity words now he looks like a dumb ass to 681128 people lol.

  • @derekxnl He looks so happy to be there to

  • @derekxnl

    Ahaha.. Its 2 AM And i laughed so loud, my parents woke up :D

  • @derekxnl You clearly haven't met Aaron Hotchner.

  • It is caused by hydrogen being produced out of the water when the burning thermite hits it. I had to do some digging and found a chemist posted on discovery channel > mythbusters forums. The explanation is long but has to do with "molten aluminum with iron oxide particles" ripping the oxygen out of the water and leaving behind hydrogen. The fire ignites that and... BOOM!

  • Retard fbi man, hahah

  • @an5d5ers LOL yeah I just noticed that.

  • From my point of view the actual thing that happens its rather simpler...i mean take some ice cubes and slowly pur room temperature water over them the ice will brake or even pop out of the glass...so imagine this phenomenon in the proportions showed in the clip....eitherway its awsome!!!

  • @gratsounas I think this as well. It's called thermal shock. It's the same reason you're not supposed to rinse ceramic bowls immediately after taking them off of a bunsen burner. The low thermal conductivity, low toughness, and high thermal expansion coefficient all encourage an explosive fracture from rapid heat changes, whether by cooling or heating.

  • The ice is melting and the water is breaking down into hydrogen and oxygen. Certain rocket fuels also burn hot enough that water cannot be used to put out a fire.

  • i think this might be related to the occurance of when a glass candleholder which has a lit flame inside heats the glass and when it suddenly gets hit by cold it warps quickly and breaks. can't know for sure glass and ice aren't the same

  • @DiabloY123 Yep your right ,even if you heat a pice of metal too 1000 F and drop it into a glass of 34 F water it will explode I seen it happen before its the same thing block of ice meets 4000 F Bucket of burning Thermite BOOM !

  • I wished I had a job like those guys!

  • immaginate if someone made a thermite bomb inside a full ice truck.... terrifying...

  • Comment removed

  • lol 4:12 angry_Face.jpeg

  • Jamie and Adam have the BEST JOB IN THE WHOLE WORLD!!!!! damit im so jelous... xD

  • this kills the 9/11 conspiracy theorys XD

  • @SlyDessertFox naw this guy covers it watch?v=5d5iIoCiI8g&feature=sh­are

  • 4:02 hahaha! Retard fbi agent

  • @mattias990 he said RETIRED

  • An unstoppable force meets an unmovable object

  • it's flash vaporizing the ice below the bucket as soon as the bottom of the buckets gone then the steam jets remaining termite into the air increasing its surface area and causing an explosion

  • some of the small scale they do on here before the actual experiment take more time and money than the real thing... seems kinda pointless

  • Mythbusters is one of those shows that I could watch endlessly and never get bored of it. Its interesting and fun all at the same time.

  • @mrjacksepticeye indeed

  • @mrjacksepticeye funducational!

  • Could someone explain the pressure blowing up the experiment? I fail to see how pressure can be built when it is not contained in a small area. (like a chamber)

  • 4:04 most EPIC frown of EPICNESS =D

  • Ok, well I haven't watched the end of this so I don't know what their final conclusion is, but if you have damp rust, it explodes due to the vapourisation of the water.

    This reaction has enough energy to melt iron, so it easily has enough to vapourise ice... It'll be steam pressure.

    Also I'm pretty certain no matter what temperature and pressure you got to, hydrogen bonds to oxygen will be stronger than iron, this reaction wont react with the water (in a chemical sense).

  • @crabid oh also, the solid will rapidly expand, if you've ever tried a blowtorch on glass you'll know that can be quite violent... (don't try that)

  • Comment removed

  • Couldn't the ice stall the ignition of the thermite allowing the reactants to build up until their volume and temperature finally beat out the cold of the ice and all ignite at once? Kind of like the plutonium tamper in a thermonuclear bomb. It only holds for a few nanoseconds, but that's more than enough time to multiply the yield by a factor of millions.

  • When u mix oxigen gas and hydrogen gas u get so called "thunder-gas" (O2+H2) , even small amount of that gas has very big explosion power. So i think when thermite react with ice it free some oxigen and hydrigen gases , they imediatly blow up because hight temperature

  • Emmesage is a neeeeerrrrrddddd:)

  • Isn't it possible that the explosion is due to rapid expansion of gas trapped in the ice (the blocks of ice were opaque)? The gas would be expanding from 0 to a few thousand degrees C. Calculating from PV = nRT, the volume would expand over 10 times in a relatively short amount of time. Rapid formation of steam might also contribute to explosion this way.

  • @emmessjee that made my brain hurt

  • @emmessjee could be a combination of both

  • @emmessjee If that can be solved with an equation I remember from High School Chem., and no one else could figure it, that would be sad.

  • @emmessjee That is what he said in the video. He did not like that idea as it would require all (or at least a lot) of the ice to turn to gas at the same time.

  • @emmessjee PV = nRT is for Perfect Gases only... I Don't know about the rest of your explanation, but if your theory is based on this formula, it is wrong.

  • @WildyWarrior @emmessjee You're right WildyWarrior, but you can apply the Real Gas law in place of the Ideal one. It is virtually the same equation, but with constants "a" and "b" incorporated.

    There is a possibility that the heat of the thermite reaction caused the water to become very acidic based off Van 't Hoff's equation, dissociating into very reactive H+ ions. Those could have caused the explosion

  • @emmessjee

    another look at it shows some explosive cloud of orange flame... could be hydrogen... they could test this again with water at the btm. should give a similar explosion if it's due to water.

  • @emmessjee That is actually the reason this happens.

    Superheating of Ice. wikipedia. org/wiki/Steam_explosion

  • i saw a samurai sword at beggining

  • they have done something iffy :C

  • Water = Oxygen, Hydrogen, Nitrogen. Thermite = Aluminum + Boron oxide. Water + Thermite + Extremes of temperature = Boom.

  • The English Voiceover is way funnier and better than this. =/

  • couldn't it have exploded because the ice in the middle became so hat that it nearly instantly became steam which had enough pressure to blow the (not yet melted) ice blocks away.

    but Jamies idea also sounds good

  • THAT"S SO COOL

  • @DINGLEtheBERRY So will you care to show the rest of a world an even better demonstration? Of course you won't. You have no room to criticize if you aren't willing to one-up a demonstration.

  • @Dungeon287 there are a pile of better ones if you care to look. im not holding your hand. the kids they showed at the beginning of the show blew these two adults out of the park. sorry i call them as i see them.

  • @DINGLEtheBERRY How did they "blow them out of the park"? The explosion that the MB's did was much larger. Do you have to make up stupid little things in order to prove a point?

  • @Dungeon287 its the exact same experiment and those kids are about 14 and these dorks are middle aged. i am reluctant to call such a couple of duefuses adults. kids blowing up shit in their backyard is exciting not a couple of pinheads running away and hiding behind some plexi. dude society has been dumbed down sufficiantly so maybe we could level off a bit at least. it will take a little thought though.

  • @DINGLEtheBERRY It's the same experiment on a larger scale. Would you not want to be behind some protection if you're experimenting with shit that could kill you?

  • @Dungeon287 i might die from boredom first.

  • @DINGLEtheBERRY So you compare the two experiments, calling them the same. The one that the teenagers did was apparently more exciting. If you think it's the same experiment, how is it boring? Unless you're calling the video that the MB's based this off of was boring as well, which would contradict you saying "kids blowing up shit in their backyard is exciting". The choice is yours.