Helium is 6x less dense than air and makes your voice sound like you just got kicked in the pickle. But sulfur hexafluoride is 5x denser than air and makes you sound like a badass supervillian. You've got to hear it to believe it. And while Adam made me promise at the beginning of the video I wouldn't try it at home, I had my fingers crossed. I hope I die!
Hit the jump for two more MUST SEE physics videos, one a supersonic jet creating a halo of water vapor, and one of sound waves on fire.
Mercury Thiocyanate used to be made into "Pharoah's Serpent" fireworks similar to the "black snake" tablets you light and watch grow into a crusty snake. Unfortunately, it produces mercury vapors during the process so now the tablets are made out of a much safer sodium bicarbo... / Continue →
I swear, I never get tired of watching non-Newtonian fluid fun. In this case, another 2:1 cornstarch to water concoction (aka oobleck) on a speaker. I really liked it when some of the pieces started diving out of the pool. Screw this sausage pool party, I'm outta heeeeeeeeee... / Continue →
Here, I'll help: OLD! Methuselah probably watched this in his 8th grade science class. But here it is anyway. I'm mainly posting it because ferrofluids are freaking awesome and you may not have seen them. That, and I secretly like posting old things because it reminds me of ... / Continue →