Comments on: Amazing Physics Videos

Amazing Physics Videos

Turtles all the way down — Mon, 08 Sep 2008 07:06:17 -0800

Top 10 Amazing Physics Videos (via Wired Science)

Some old, some new, but all awesome.

By: longsleeves

longsleeves — Mon, 08 Sep 2008 07:29:39 -0800

What, no mentos in a soda bottle? (Thanks, these are cool.)

By: GooseOnTheLoose

GooseOnTheLoose — Mon, 08 Sep 2008 07:53:35 -0800

This is my favorite, but I dunno if that counts as physics or chemistry or what.

By: swordfishtrombones

swordfishtrombones — Mon, 08 Sep 2008 08:23:22 -0800

That Tesla coil is incredible. I was expecting a 808 to kick in halfway.

By: jedicus

jedicus — Mon, 08 Sep 2008 09:17:08 -0800

Why haven't giant Ruben's tubes become a mainstay of rock concert pyrotechnics? Someone is asleep at the switch.

By: Pantengliopoli

Pantengliopoli — Mon, 08 Sep 2008 10:58:55 -0800

Those are fantastic! How does the tesla coil soundwave one work? I don't get it... The cornstarch (GooseOnTheLoose's link) is remarkable -- the end... creepy, almost.

By: Killick

Killick — Mon, 08 Sep 2008 12:38:39 -0800

I'd like to see slingshot girl on the list somewhere.

By: JHarris

JHarris — Mon, 08 Sep 2008 13:34:03 -0800

Make sure to note the credits to the rap song at #1.

By: JHarris

JHarris — Mon, 08 Sep 2008 13:37:23 -0800

(Oh, and Turtles, this is an awesome post, IMO.)

By: turgid dahlia

turgid dahlia — Mon, 08 Sep 2008 14:44:02 -0800

Dugg!

By: MaryDellamorte

MaryDellamorte — Mon, 08 Sep 2008 15:31:38 -0800

I think this video exhibiting the properties of a non newtonian fluid is pretty rad.

By: meinvt

meinvt — Mon, 08 Sep 2008 16:39:07 -0800

A great collection. Thanks.

By: alexei

alexei — Tue, 09 Sep 2008 01:12:54 -0800

Can someone explain to me... This concerns the mythbusters helium/SFl6 inhalation bit. So speed of sound goes inversely as density, and causing the high voice with helium. But, everything I've read suggests that deep-sea divers (breathing a He and O mixture) have the same high-voice problem. Wouldn't their gas be under many atmospheres of pressure, and so have a high density, and so lead to a very low voice?

By: Pantengliopoli

Pantengliopoli — Tue, 09 Sep 2008 09:25:28 -0800

The gas itself is still less dense than nitrogen (which is what it replaces), even at depth. See here: Because the mass of helium gas is less than that of nitrogen gas the vocal cords vibrate at a higher rate in the voice box, this coupled with the higher speed of sound for helium results on a very high pitched voice when the diver breathes the helium oxygen gas mix. Which also notes that hypothermia is a greater danger as well, since Helium conducts heat much better than Nitrogen...