Jay Leno + Sulphur Hexafluoride [video]

Everybody knows what helium does to your voice, this stuff does the opposite...:)

Jay Leno: How to Float a Boat on Air video and other Knowledge videos at 5min

Another cool video about one of the coldest liquids achievable by man (or woman)...liquid helium...Zero-Viscosity FTW!
Superfluid: Liquid Helium Phenomenon video and other Science videos at 5min

Just for the sake of getting an idea of exactly how cold this stuff is: (Source)
Oxygen
Boiling Point: -297.4°F (-183.0°C, 90^oK)
Freezing Point: -361.9°F (-218.8°C, 54^oK)

Nitrogen
Boiling Point: -320.5°F (-195.8°C, 77^oK)
Freezing Point: -346.0°F (-210.0°C, 63^oK)

Hydrogen
Boiling Point: -423.0°F (-252.8°C, 20^oK)
Freezing Point: -434.5°F (-259.2°C, 14^oK)

Helium
Boiling Point: -452.1°F (-268.9°C, 4°K)
Freezing Point: -459.7°F (-272.2°C, <1°K)

Absolute Zero = -273.15°C

Liquid gasses are awesome. I never knew those details about liquid helium, though, only that it's been used in submarine nuclear reactors as a coolant. Great video, if brief.

As for that sulphur hexaflouride.. if someone told me to inhale a gaseous compound containing sulphur and flourine, I'd normally tell them to get stuffed - but knowing that it's actually harmless and can give anyone Andre the Giant's voice, I'd be right up for it.
That, and its ability to make lightweight objects float as if in water.

Yay, gases!

Jay Leno, not so much... :mad:

As for the Jay Leno thing, that is awesome.

The liquid helium was cool too-- think of the possibilities with superfluidity!

:kaodizzy: