Floating in mid-"air"!


#1

This is cool:


#2

that is amazing. =]


#3

yes! it wont be much longer till…

[original attachment deleted after 2 years]


#4

http://en.wikipedia.org/wiki/Sulfur_hexafluoride#Notable_characteristics

Check out what happens when someone inhales that stuff:


#5

Is that like the opposite of helium?  ie:  it’s heavier than air, and it makes your voice deeper?


#6

Exactly.  It is a little more than 5 times the density of air so it slows the speed of sound and creates a lower pitch.  Helium is less dense than air and sound travels faster in it.


#7

That is absolutely awesome!!!
Heh, I wonder what my voice would sound like.


#8