Added: 5 years ago
From: robertburkottawa
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  • 1:35 there you go

  • Man, this teacher is good. I found it slightly aggravating when the video was over because I was hooked. Tremendous energy because of the extra electron... Go on, please, I beg you!

    We had great physics teachers though. One of them explained electricity as the movement of electrons, then took a hammer or something and fucking threw it in the corner not giving two shits about breaking stuff and waking up students. See, that's electricity. God, I loved learning from these men. Real teachers.

  • I got here by googling acetylene.

  • Who got here by searching explosions?

  • Click play and press 7.

  • Comment removed

  • Static electricity from filling the balloon and handling it could have put this guy out of work for life.

  • @billville111 True never thought of that . I hear about a fella trying to transport some ballons filled with this in the trunk of the car . Closed the trunk and boom!

  • Acetylene is on the way out!!! Since the carbide plant blew up in Kentucky prices have skyrocketed. I have found a new torch system that is safer faster and very cheap to run. Check out a Petrogen cutting torch. It is made in America and has a lifetime warranty. It has tripled my profit margins at my scrap yard over the past year

    !

  • Stored pressurized C2H2 is usually dissolved in acetone and it's safe there until the pressure is allowed to fall.

  • Why is alcetylene so reactive?

  • @lya95 Because of the excess of electrons between the two carbon atoms. weren't you paying attention?

  • This is a great way to wake up sleeping students in class.

  • @Wielder432 why sleep in hiss classe???

  • @Dp908 yes it is used for welding, heating, brazing, soldering, with an oxy acetylene torch.

  • Nice, but in the balloon is oxyacetlyne or something whats used for welding not hating still an awesome vid a like from me

  • @vader3435 When you use Acetylene to heat things, it is because you may want to bend metals. Heat the metal, then bend the metal. Many uses

  • Dang. I found a tank of acetelyne outside on my street. Like it's use for welding and I have no idea what to do with it.

  • @896blackjack Acetelyne is used for torches, not welding.

  • @Dp908 Acetelyne IS used for welding with an Oxyacetalene torch. Burns at twice the speed of sound too

  • @joshuatunnicliffe Acetylene and Oxygen, not just Acetylene.

  • WHAT SCHOOL IS THAT!

  • @jesuslovesmebetter you searched for the solution and the problem came up, lol.

  • what ratio did you use?

  • @itskamonegi. Omg! Same!

  • i got here just because i got bored and typed in explosion

  • @itskamonegi I Got here because I typed in Acetylene

  • What The fuck

  • I really wasn't expecting that.. what does no oxygen do?

  • @Aweber87 nothing, has to have oxygen. like trying to make cookies with no eggs

  • @Aweber87 if there is no oxygen then nothing will happen. So if you fill a room with methane and no oxygen, then try to light the methane nothing will happen. You will need the correct ratio of oxygen and methane to ignite the mixture of gas.

  • @MrTopflight29 you couldn't even light a "light"

  • @Aweber87 nothing to burn so safe

  • 1:37 Klikajcie!

  • Who here googled explosions?

  • 12 people are balloons

  • lol @ paul

  • 2:02, that's what she said.

  • "sorry i didn't bring anymore for you".. *eyebrow wiggle* haha

  • "aah, you only come for the explosions"

    lol, true

    teachers always say that

  • cool

  • I didn't need to go to university to see this.That is the very same demo I had in grade 11 when learning how to weld.

  • Ladies and gentlemen, get ready for the master of sound-shockwave: Oxy-Ace.

  • I love the intro: "The familiar mushroom cloud snakes skyward, hurling the atom's deadly radiation high into the heavens!"

  • "...this one scares the hell out of me...", dramatic pause...BOOM!!! lol, love it

  • damn this brings back memories. back in the late 80's when i was in HS i was assisting CIG (now BOC) do gas demos at Phys Dept at the ANU. One of the demos was bubbling Oxy-Acetylene mix through detergent, and dropping a match. At the end of the day, when all had ear and eye protection (no public) we did one with a HUGE pile of bubbles. The noise and shock wave were awesome, and @half a meter from the chalk boards at the front of the lecture theater, a falling 'wall' of Chalk dust. Amazing

  • @HighTechMods a phd in chemistry once told me to steer clear of acetylene, it can spontaneously decompose and explode very easily. Obviously, it is used quite a bit, but it's dangerous. A gas company in NJ had a couple employees blown up several yrs ago....it appears they dropped an acetylene cylinder off a dock while loading.

  • @kenfo0 yes it is very dangerous, there was an explosion in my town as well when a man misused an oxy-acetylene torch and blew up 5 oxy-fuel rigs. 4 people were killed..

  • now imagine a ton of that =D

  • @RoostersAngel o rly?

  • Yesterday my teacher said; "This one can go badly wrong, I've seen bits of glass and plastic hit the back wall". I'm in the front row :L

  • explosions rule!

  • When ever a teacher puts on ear protection and says "frankly this one scares the hell outta me" I think its safe to say that your in a fun ass class!

  • Why didn't our teachers demonstrate like him. Studying would have been so much fun then...

  • 1:57 hmmmmm lol .. closet arsonist?:P

  • 1:38,1:38,1:381:38,1:38,1:381:­38,1:38,1:381:38,1:38,1:381:38­,1:38,1:381:38,1:38,1:381:38,1­:38,1:381:38,1:38,1:381:38,1:3­8,1:381:38,1:38,1:381:38,1:38,­1:381:38,1:38,1:381:38,1:38,1:­381:38,1:38,1:381:38,1:38,1:38­1:38,1:38,1:381:38,1:38,1:381:­38,1:38,1:381:38,1:38,1:381:38­,1:38,1:381:38,1:38,1:381:38,1­:38,1:381:38,1:38,1:381:38,1:3­8,1:381:38,1:38,1:381:38,1:38,­1:381:38,1:38,1:381:38,1:38,1:­381:38,1:38,1:381:38,1:38,1:38­1:38,1:38,1:381:38,1:38,1:381:­38,1:38,1:381:38,1:38,1:381:38­,1:38,1:381:38,1:38

  • acetylen is gr8 stuff, but dangerous.

  • Acytylen is no joke, at my school the has been a couple of explosions

  • Now THAT was a fine blowjob!

  • @158057 That is a weird fetish.

  • ahh no worries...he'll be on the no fly list in a few years. crazy chemists...

  • It's all about that excess electrons between two carbon atoms man ! deydabomb

  • we used to do that in my welding class. its easy, all you have to do is get your torch going, snuff it out , fill up an upside down Styrofoam cup on the edge of a table, and slide it back over the table. then just relight your torch and set it off. BLAMO!!! its the sort of blast that makes you flinch but is harmless, unless your stupid enough to put your face in it.

  • @iamzid it guys like you that keep these welding "accident" video's going :-/

  • why would he make a oxygen and acetylene bomb in a school?

  • I would take your chem class any day. :-)

  • this is boring

  • Yeah, Bob! I love Chem 1001. :D

  • @themadscientist Definitely. =3

  • I was paying attention in my chemistry class when the instructor did this and I still jumped out of my chair.. you have no idea how loud that is

  • i want him as my teacher XD

  • @TheDragonKnight777 lol i got him as my chem prof : D

  • @AkiranoKun harggh... XD

  • we used to do this in shop class for fun

  • I did my own version of this with the acetylene welding rig in the back of the metal work class when I was in Grade 9. My teacher was furious! Earned myself a fair bit of notoriety though. Even the bullies laid off me for about a week!

  • Isnt C double bonded to C in acetylene?

  • @Jeeperanthony it's an alkyne (the intro says Reactive Alkynes), the systematic name for acetylene should be ethyne I think so there's a sigma and two pi bonds between the two carbons thus it's a triple bond between the two C's.

  • I've seen entire garbage bags filled with acetylene detonated for the 4th of July, unfortunately someone forgot to mention that rubbing the polyrtylene bag produces static electricity. I thought they would look better with no eye brows.

  • Thats an awesome class

  • I suddenly feel the urge to go back to college and study science!!

  • That'll wake you up.

  • im a mechanical engineering student at san diego state working on engine design. im curious as to the possible implications of dispersing trace amounts of acetylene as a fuel for engine combustion, mainly piston movement. if i remember right he said roughly half a gram? and how much oxygen? those exact numbers are very useful if you know how much force your pistons require for optimum performance...

  • @fitshuck Sounds like an interesting question to bring to your instructor's attention.

    or perhaps an experiment you can present results to him/her with later.

  • 1:40 is where it gets interesting folks.

    Skip the chitty chat and get to the good stuff.

  • yeah thats big alright.. on 4th of july my uncle and i were filling a garbage bag with acetylene and oxygen and it blew up while we were filling it. there was probably like 10 gallons or so, and it blew up from static electricity. we were both sent to the emeergency room with burns and i still cant hear out of my left ear. i wish i couldve gotten that on tape. all of my body hair is gone. fucking SUCKS! dont play with acetylene.. ITS BAD

  • SPREAD THE DOOM

  • Just imagine what the students in the other classrooms though when they heard the explosion.

    Perhaps they were notified in advance, I would hope.

    cool experiment.

  • @BeavisNacho Techer: ok class theres goin to be an explosion...so just ignore it ok?

  • @awestruck678 The Media could use that line on us for the potential gulf explosion!

    ;-)

  • ..hehe had that time ago in class (metal worker) we put acetylene and oxygen in a tube and put a glowing welding electrode to ignite it.. hihi. bigbaboom. a friend of my blowed these way some windows out at work^^ chief was dissapointed with him. but we stil have a great time laughing bout that

  • "This one scares the heck out of me" WTF? lol

  • That was an epic 'boom' lol i thought it would be a 'pop' or something. shiiittt...

    imagine if they used that in fuel air explosives.. i mean this was just deflageration.. send a shockwave through it and detonate that sucker and shhiitt mannn :/

  • i have the earphones and full volume and then booom!

  • @Mrvioleto what did you say?

  • I wold love to have a professor like that.

    My are too boring...

  • lol i already knew this... welding class.... good times.. haha

  • Omg at 1:19 when he does the eyebrow thing and he smiles he looks so much like Kev Jumba's dad.

  • he must have burn't the top of his head with a previous experiment?? no hair!

  • whouaou !

  • Nice clown trick!

  • ethyne, i love ye :)

  • wow, I'm gonna make a balloon like that :D

  • I love you, triple bonds.

  • 2 liter bottles do good too

  • I wish he was mine science teacher!haha

  • Absolutely....

  • The insctiption written on the baloon is all wrong. Where are the 2 Hydrogen atoms ? As far as i know formula for the ethyne is HCCH....

  • cause its obvious were H atoms are... H-C≡C-H.

  • a lot of people don't tend to put the H atoms on, because people who've done anything higher than GCSE Chemistry know that Carbon has 4 bonds... it goes without saying, each uses 3 bonds bonding to the other, so that leaves one for each... this is a hydrocarbon so it's only other bonds are hydrogen, and thus you get H-C≡C-H... or C≡C for short, simpler =]

  • Its the fact....anyone who passed elementary school chemistry should know that C atom has four free bonds....i dont know why we should even have this conversation....:)

  • the reason 15 year old boys start learning chemistry - and become pioneers later on

  • That was a BIG BANG - could he have just created a new micro universe?? A universe within a universe????

  • @GovernmentGuy not when there's air around

  • @AdioChings Why not?

  • The angle view from the camera and the way the professor set the ruler down to the stand formed a perfect right triangle illusion.

  • and?

  • haha, wish I had this guy teaching me chemistry! Theres no fun in science at school anymore cos of the prick called Mr health and safety.

  • No wonder one uses it for welding.

  • my teacher did that in our 6th grade classroom to prove a point

  • I had welding class and vertical pipe welded to a sheet of metal. I made the loudest noises. THe more oxygen the faster the ignition. No oxygen and it would just puff flames. I heated the base red hot, filled the pipe with pure oxygen, then squirt a bit of acetylene gas and it was like a shot gun blast going straight up out the pipe. It not an explosion but fast burning gas so it should be legal

  • Dude, that balloon, we did that in our physics class! TWICE! You can feel the force of the explosion. The light from it was so bright and sudden, its was as if the whole room blacked out for like half a second

  • oh really my teacher did that test with a seal plastic cup that was full that acetylene gas and when it exploded the force manage to nock down fucken little kids near by and it push a big dog to the floor in one second that thing is like a small fraction of 500 pound bomb going off . so if you want ton talk about bang go to norwalk and  you will find bang

  • So what science did you take where acetylene, big dogs and little children were involved?

  • we blew it up in the park

  • sounds creepy to me too

    must have been skull and bones, LOL

  • Acetylene is a gas. 0.5 grams of Acetylene gas fills a volume of almost a liter using the ideal gas law.

  • That is really the best bang for safety. It doesnt rip anything off except your eardrums :D

    I owned every single fireworks yesterday when I put off the same amount of oxy-acetylene as in the video.

    Even my neighbours roof was cleared of snow, because of the blast was so hard :D

  • lol this i have done yesterday and today ^^ but i think there was a bit more Acetylen inside it was much louder than a weapon alarm gun

  • A hALF OF GRAM??? IF THERE WERE A DAMN LITRE?

  • that depends on the density of the gas...

  • @alo365

    he never said it was...

  • I wish that dude was my teacher.

  • It took him like 10 seconds to lginite that match with a Torch 0.o

  • Where the hell does a reaction which burns a chemical containing only carbon create water?

    There be some magic fission goin' on here...

  • Well, he forgot to mention that ethyne is not just C(triplebond)C, but C2H2. So it´s a linear molecule with 2 carbons and one hydrogen at each end. So the reaction produces 2 CO2 and 1 H2O per C2H2 :-)

  • He looked at the explosion! he's not a real man!!

  • damn ur hella awesome

  • notice that nobody's talking :)

  • my welding teacher did this to show how explosive acetylene is. it was pretty sweet. a tank of this stuff could level a building in a second

  • i would pay attention if every class had explosions

  • @themadscientest lol true, me2

  • Awesome sound that bomb of your made

  • BOOM !

  • Why can't every professor/Teacher be like him> lol?

  • @KOOL2011 isn't it normal for teachers and profs to do stuff like that from time to time ? that's what i experienced.

  • @CaptainObvious0000 The thing is that some teachers\professors are so caught up in teaching that they forget to have a little fun. ;)

  • @KOOL2011 Yeah. "Ok kids, today, I will show you why cocaine is a very powerful stimulant and how a nuclear reactor works." I would love that. I would not live long, but I would die loving science. lol

  • @260191894 lol, i wonder where we can find such a college; and who the professor would be? HAHAHAHAHAH

  • stop at 1:41 sweet :)

  • my teacher did do that.

    sry for my english i'm from switzerland.

  • lol asome boom!!!!!!

  • lol i wish MY teacher was like that!

  • My God, if I would have had teacher slike him I would have never missed a day of school!

  • hahaha BOOOMM

  • Chemistry FTW! It's the most bad ass nerd sport.

  • lol

  • my teacher did it with a balon of hydrogene. was really cool

  • Balons of hydrogene are so cool.

  • This is what teachers should be like.

  • Do it again with a bigger balloon.

  • big boom

  • You have:

    alkanes: single bond between two C-atoms

    alkenes: double bond between two C-atoms

    and alkynes: triple bond between two c-atoms.

  • alkanes only have single bonds

  • erm... sorry..i didnt give you the thumbs down, but i got rid of it

  • :P thankoo

  • chemistry is better than plain science because you get to learn useful things instead of being bored and writing down stuff

  • Chemistry is plain science

  • pause at 1:41.. u can see the explosion!

  • Or...wait 10 seconds longer and watch it in Slo-Mo =D!

  • You gotta love those triple bonds.

  • i did this with a rubber glove and it fricken almost broke the windows haha

  • acetylene is an apprentices fun :)

  • This guy loves his job.

  • "Ehh, you only come for the explosions." Hahaha!

  • we did this in my high school chem class haha