Fingernails Chalkboard Music

[nickbhalo]

How lovely

[Trackman2007]

This iiiss the TUNE OF THE WEEK

[insertnamehereololol]

justin bieber before autotune

[musicman1379]

@insertnamehereololol no shit! lol

[TradeMarkMercenarys]

ur poor neighbors

[sircantaloupe]

That sounds seriously horrific.

Awesome!

[j822bosh]

MAN THAT IS HORRID! Of coarse I am laughing too! Poor little dry ice chunk is screaming in agony! XD

[sk8aflyerdudeyo]

lmao luv this video

[alantaecaswell]

MY EARS!!!

[MarijnvdZaag]

Wow that was pretty aweful

[airbaloonfaileer]

you can do this just by putting a knife on the ice

[asurifyy]

or putting the queen head side down of a toonie

[namtap]

Make an album of this. I would listen to it. Seriously. I'm a bit off, though.

[TheLightningStalker]

That's my favorite sound.

[jkaf8]

i remember doing this with a penny. (no torch)

[cydoniashero]

one this EEEEEEEEEESAAAAAAAAAAARRR RAAAAAAAAAAAAAAPPPPEEEEEEEEEEE­E

[new01]

When I was young my dad told me to squeeze a warm quarter against a block of dry ice in randals. I thought it was cool until I felt the sting of the dry ice when i held it there for too long.

[dukenukemfool]

lol!

[mransom565]

thats unpleasent

[daraghorban]

yo thats sick

fantastic

[sypha0x]

I love your work! Keep it up dude! You rock man. I Subscribed and interested in seeing more cool gadgets!

[littlebigplanet4912]

when i first herd this i cringed (srry about my spelling i think i spelled something wrong...)

[wbeaty]

No, I don't think Metal Machine Music involved any cakes of dry ice...

[wbeaty]

> Cool. Your IQ must be OVER 9000!!!

Nah, I just figured out the method for having really amazing ideas. See the second half of youtube com/watch?v=AxLNOWGClhU

Also:

How to have ideas

youtube com/watch?v=J2YGHYEGdJE

[BirdmanHT07]

I totally made a sound like this once,

I had a plastic cup filled with water and took a stick that was on fire and put in in the water and touched the cup at the same time and made a similar sound

[TheUglyMonkeyDog]

Nice video, keep up the good work with these videos, cause they're all fun to watch and you can even learn a little while watching!

[flyingmen2]

this was shown to me by one of my freinds and he made George Washington "scream" on a dime

[flyingmen2]

quarter i mean

[Calliber50]

I like it. Now to use this on my neighbors when they play their music loud.

[wbeaty]

Some people respond to puns in the same way they respond to garden implements dragged across dirty car hoods.

Coming next: edible cryogenic popcorn made entirely from beer and dry ice (no microwave ovens or blowtorch needed though.)

[mwmalecky]

>edible cryogenic popcorn made entirely from beer and dry ice...

I do believe that you are my favorite person ever.

My only disagreement is that EVERYTHING is better when you add blowtorches and/or microwave ovens.

[wbeaty]

At Burning Man I wore goggles, labcoat, and black rubber gloves, and was forcing people to put dry ice in their coffee. They thought I was insane, BUT I SHOWED THEM ALL!! HAHAHAHAHAHAHA. (Actually, they did think I was insane.)

Instead of using peanut oil, we could start a camp where we massage Burners with small blocks of dry ice. Try it. Just don't hold it in one spot for over 0.5 seconds. Great on hot days, and Very Tingly!

Call it...

THE CARBON NATION

(sorry.)

[andrew11235]

You're like the George Washington Carver of dry ice.

[TandEeesDad]

You get a similar noise if you hold a metal spoon against dry ice. Thanks for the video.

[rotatingwah]

The perfect gift for that special someone who deserves only the best!

[mancole96]

That sounds HORRIBLE!

Pretty cool though.

[Barnekkid]

Thank you for the high weirdness, Bill B. Keep the videos coming.

[OBCblackhawk]

Post more videos, you always have something interesting to watch.

[zuzerey]

hahah creative!

[MoraaNL]

Finally a new video :D make some more of these videos i love them!

[ndyt]

use garbage cans next time ;P

[psyfertech]

i woud love that place but whilst i was cutting up some dry ice before i experieced this on my knife

me and my brother thought it was pretty neat how it does that

[overunitydotcom]

My girlfriend didn´t like the sound ! LOL !;)

Shut this thing off...! She shouted ! LOL..

[MistMrE]

dont blame her

[itsabomberscope]

Sounds like my knees first thing in the morning lol.

[KristyGeee]

I've done this before in my metal kitchen sink. At first everyone in the house thought the garbage disposal was going to blow up or something because it was a deep vibration/screech noise since..well..it's a sink. haha

[pinkdave747]

WOW! That's horrid! Did I see the vertically mounted bowl rotating? I'm trying to visualize what was going on there but I can't account for the oscillation created. I know it has something to do with heat transfer from the vertical bowl and I get that once the oscillation has begun it would be perpetual but I don't understand what is initiating the oscillation. Gimme a hint?

[pinkdave747]

K ... I think that the heat is expanding the vertical bowl which is then touching the dry ice only to be cooled enough to shrink away from it causing a cycle of expansion and retraction thus creating intermittent friction. Hence the wicked shriek(oscillating friction cycle). Close?

[wbeaty]

Maybe a tuning fork would give pure tones?

Whenever sheet metal touches dry ice, it briefly screeches. I guess it makes micro-explosions where the dry ice vaporizes. It's "chaos," since the metal lifts up and creates all kinds of waves bouncing around the sheet, and the summed waves drive the metal randomly back down to touch again.

But it stops when the metal gets cold. Brainstorm! Slowly rotate the upper bowl. That way it squeals for a couple of minutes before needing a re-heat.

[pinkdave747]

Chaos yes but there seems to be some elegant mathematics describing those summed waves. I never would have come up with that answer. 

You have bested me Sir! Many humble salutations for your gallant puzzle! (I love a challenge) Thank You.

[wbeaty]

> Chaos yes but there seems to be some elegant mathematics

I encountered "laser chaos," when many different 3D resonant modes inside a laser cavity are competing for available energy. They fight nonlinearly, and give out a chorus of pseudorandomness. Dry ice howl should be analogy: metal sheet has many 2D "Chladni plate" modes, and they all could be driven into oscillation. But they fight nonlinearly. Acoustic laser, and the winners are the ones we hear?

[wbeaty]

Almost as good as a rusty garden rake on a motorized rotating slab of shale.

[deathwish98]

COOL!