Shatter beer bottles: Bare-handed bottle smash

HAZARDOUS PHYSICS DEMO. Flying sharp glass. [ click SHOW MORE]

[[[WOW, this cavitation physics video is widely copied since 2007, and now I hear that "Time Warp" even included it. But they never contacted me. Not classy. Maybe they developed their version independently wo/seeing mine? Nah, the description in theirs is eerily familiar. I recognize my own memes when I encounter them far from home. And there are several other obscure arcane high-speed phenomena here, Time Warp really shoulda asked!]]]

NOTE: If you wear a ring, you might shatter the bottle and slice your hand. And sometimes the whole bottle breaks into razor-edged shrapnel.
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It's quite easy to blow the bottom out of glass bottles... if you know the secret. Even wine bottles sometimes work. But not cider jugs, since the pressure peak is too small if the square inches is large.

BEER DOESN'T WORK WELL. Neither does champagne. Carbonated beverages produce gas-cushioning.

So, dump out the beer and use tap water. Even fresh tap water contains too much dissolved gas, so try it with bottled water, or stale tap water hours old.

______________________

PS
Those cavitation bubbles near the end of the vid? They're in a de-gassed vacuum-packed juice bottle I created using live steam. It makes big blobbly cavities which don't snap shut instantly, and usually the bottom doesn't explode. No highspeed cam needed! You can do the same thing with an unopened bottle of apple juice or spaghetti sauce. Maybe I'll post a vid on how to make one of these. At 1ATM with unsealed bottles, the same thing still happens, but it's about a thousand times faster and the forces-spike is much higher.

Category:

Science & Technology

Tags:

• physics
• demo
• demos
• demonstrations
• cavitation
• vacuum
• science
• amasci
• hydraulics
• fluid
• dynamics
• how-to
• tutorial
• instruction
• bare-hand
• bare-handed
• bottle
• martial-arts
• magic
• bar-trick
• bar-tricks

[imfromtambunan]

could u use this without water and just beer?

[wbeaty]

@imfromtambunan See "Time Warp" bottle smash episode. They try it with beer, and even a rubber mallet, but the CO2 in the cavitation cushions the hammer effect. But really that just means for beer, you need to hit it much harder. Water avoids bruised hands and wasted beer.

[Kissrocks1000]

who the fuck flagged this?

[wbeaty]

> flagged this?

@Kissrocks1000 perhaps it's FCC rule against drinking beer on camera? (watch whole vid. It's water. Beer doesn't work.)

Prhaps smashing glass on floor with flying fragments is hazardous, and I didn't carefully give safety instructions? Didn't wear goggles? *NO* instructions can make this safe. Part of entertainment value is depiction of risky behavior requiring skill to avoid serious injury (then, I INCLUDE SCIENCE)

YT silently sets vids to 'over-18' wo/explanation. Why?

[cjd623]

0:47 lol

[Tonicwine999]

I believe you wbeaty, I bet they copied your video.... This is one of my fav videos and also I've had bookmarked for years, one of the fist videos I bookmarked.

Anyway, cheers

[kaaeyl]

it's the sudden compression of air with a bit temperature imbalance.

doesn't get my gusset creamy. why do you do this to me Tube :D

[thejessmorris]

This is really cool!

[suckstobeyou100]

That man, is amazing. o-o

[TheDoctorCow]

Mind=blown

[ThePhoenixAffinity]

IT ONLY WRKS WITH NON CARBONIZED DRINKS THUMBS UP SO REDARDS DONT HURT THEMSELVES

[lSzeSze]

@wbeaty You crack me up :DDD

[baseballboy0101]

0:39 fail!