Melting Glass in a Microwave - Bang Goes The Theory - BBC One

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Dr Yan explains why glass doesn't heat-up when cooked in a microwave and performs an experiment to show how it can be done.
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Опубликовано:

6 сен 2009

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Комментарии : 68

@TheLukeDarby 13 лет назад

"microwaves work, by making molecules and stuff...wiggle...like that."

@1RadicalOne 14 лет назад

No. Microwave ovens are tuned to the frequency of vibration of a water molecule. The microwaves increase the vibration, thus increasing temperature of the water and therefore of your food. You could in theory modify the magnetron to emit a different frequency, that of the molecule of silicon dioxide - the main component of glass.

@1RadicalOne 14 лет назад

An easier way would just be to tune the microwave to the frequency of silicon dioxide rather than water.

@XxCynicServedColdXx 11 лет назад

Love the laugh.

@RadagonTheRed 12 лет назад

0:14 - Goofy laugh. Eh he he he ha.

@wbeaty 14 лет назад

Yay, my microwave oven meme has hit the big time! For the history behind this demo, google on "microwave magma"

@mattgillymattgilly 13 лет назад

i keep staring at this dudes crooked glasses

@s3eha 14 лет назад

im gonna do that at home !!

@RandomizationShow 11 лет назад

0:29 ..... JOHN LOCKE!

@PrimusProductions 13 лет назад

is it a good idea to microwave this?

@doomermeeko 12 лет назад

@Matticusjk density has nothing to do with it. it's about the bonds between the molecules.

@1RadicalOne 13 лет назад

Wrong. That is already done in some industrial microwaves, usually for the purpose of melting metals in short order. It is done by altering the frequency of the magnetron, the emitter of the microwaves to be in sync with the vibrational frequency of whatever material you are seeking to heat and/or melt. Each atom has its own frequency. Ever hear of a cesium clock? Same principle, different application.

@thedragonburn 12 лет назад

@Hatchwork he's teaching it wrong though. it has to do with the resonance frequency of materials. microwaves work at the resonance frequency of water, thus making water "vibrate". it has nothing to do with how solid or stable something is.

@jamends1220 15 лет назад

No because we do have a Myth Busters.

@wbeaty 13 лет назад

@DidntKnowWhatToPut1 Nope, in the int'l physics demo community everybody copies the good ones. Best to add your own improvements (like not torching the bottle itself, it may shatter.) It's only in journals that we're required to give attributions. Try it with a hunk of obsidian. Instead of melting, it turns into volcanic ash! Well, foam-glass actually. Unlike the Hawaiian type, most lavas are full of dissolved gas, that's why most volcanoes erupt like rocket engines.

@man561able 13 лет назад

@Hatchwork yupp yupp yupp

@C0mm3n 13 лет назад

1:08 LADIES AND GENTLEMAN, I PRESENT TO YOU THE GREAT BRITISH CHAV!!!

@powerpufflover1 10 лет назад

At 01:03 is that MATTY B ?!

@mistereveready 13 лет назад

I'm just glad one of them didn't pull off a stupid, "How do fucking magnets work" nonsensical question.

@Matticusjk 12 лет назад

But ice is less dense than water?

@yusha32 13 лет назад

@Hatchwork School isn't fun and the human brain is encouraged and also enjoys learning if it is fun.

@deycha1 14 лет назад

@ciarandoughty yeah, it can fix a lot of stuff, haven't you tried :D ?

@xXevilsmilesXx 13 лет назад

I just learned something... from the Internets O_O

@lucyth2 15 лет назад

EH? lol, do tell

@roycebutler6551 7 лет назад

0:28 john Locke form lost

@ala_teksti 12 лет назад

@ChunkyMilkProduction WHY NOT?

@drummerkid1993 15 лет назад

Lighten up?

@angelheart757 12 лет назад

@unconcious5urge I added a link to a video I watched yesterday because I wanted to learn how to make glass jewellery. see below

@xHaniffax 15 лет назад

Is this like an English Myth Busters?

@kresobujan 12 лет назад

@Hatchwork if you live in USA, why bother asking?

@jinjino98 12 лет назад

austin powers!!!!!!!!!!!!!!!!!!

@MeHaventGotAClue 15 лет назад

How? this is a BBC production

@wbeaty 13 лет назад

Aha, my physics demos are spreading to other vid shows! For more suggested stunts see the original version: goo.gl A5Hag

@perebraco 12 лет назад

why does he sound like a weirdo when he sais "blowtorch"?? 1:11 ohhh and his glasses are a bit leaning XD

@saltwindful 10 лет назад

His explanation of how this works is not quite right. In fact it's probably wrong. :-) If it were true, you would see this progress quite differently.. you would see a quicker cascade.. the bottle would fall apart pretty fast. It doesn't.. it doesn't accelerate.. it decelerates. But then, in general, the science behind why this works is fairly new, and we don't actually have a solid understanding of it. As a hint, I would be very curious to see what happens if he sealed the vent, and squirted in a load of N2 before he put the shard in to keep heating.

@cjbyler 14 лет назад

fuck the learning part i just want to see glass melt

@drummerkid1993 15 лет назад

Nooooooo.

@karaz68 13 лет назад

@Hatchwork Because RU-vid science isn't restricted as much as school science, which I think is stupid

@ciarandoughty 14 лет назад

@deycha1 so swearing at it will fix it? :D makes sense.

@endimion17 12 лет назад

@Hatchwork Because you don't pay attention at school.

@desjaraah 13 лет назад

@11SLEW11 LOL OMFG NO SHES MY AUNTYS FRIEND ROFL!!!

@WireW0lf 14 лет назад

whoot tha bloody fooohking 'ell?

@ThatGuyCalledAura 12 лет назад

ovin

@jhorneth 13 лет назад

Molecule5 n Stuff ;D

@SabianTamaDrummer 13 лет назад

it's will from the inbetweeners...

@stealth2892 15 лет назад

i like the show but i prefer mythbusters :)

@JamesBuffett100 12 лет назад

@onlyontuesdays99 That didn't make me feel better at allll!!!

@onlyontuesdays99 13 лет назад

And then everyone got cancer. The end.

@goddeh69 15 лет назад

yeah, for like 10 year olds

@DidntKnowWhatToPut1 15 лет назад

they stole this from another youtuber

@UpstairsPancake 15 лет назад

the woman at 00:38 is creepy

@peterreid 11 лет назад

nerrrrd alert!

@botchok5 15 лет назад

I know haha, his enthusiasm doesn't work well.

@ChunkyMilkProduction 12 лет назад

WHY ARE THEY WEARING YANKEES GEAR!!

@drummerkid1993 15 лет назад

And you wasted a further 10 seconds by posting that comment and a further 10 seconds reading this one. More life wasted You still reading? You're just going to sit there and let me waste your life? I'm going now. I said I'm going, bye. Wow, I thought you cared about your life being wasted?

@greganor25 15 лет назад

oh my he is irritating. Most people with any schooling know that microwave ovens emmit a very specific wave frequency that has a great affect on liquids. People who don't are usually those who think their mobile is cooking their brain.