Leidenfrost maze

[Hydra009]

[youtube:39vekula]http://www.youtube.com/watch?v=vPZ7sx3EwUY[/youtube:39vekula]

http://en.wikipedia.org/wiki/Leidenfrost_effect

Wow, those are pretty cool marbles.

Waiitt...those aren't marbles...

[spoil:39vekula][/spoil:39vekula]

[Aroura33]

Wow, that is pretty amazing stuff!  I wonder how it could be applicable to something useful?  I'm sure someone will think of something.....someday.

I have to share this, my hubby just starting his calc+physics class, bet he'll enjoy this video.  Thanks for sharing!

[BarkAtTheMoon]

Mythbusters did a bit on this effect where they dunked their hand in water, then dunked it in molten metal without it hurting them.

[youtube:37e6le5u]http://www.youtube.com/watch?v=yTOCAd2QhGg[/youtube:37e6le5u]

[Solitary]

Johann Gottlob Leidenfrost (November 27, 1715 – December 2, 1794) was a German doctor and theologian who first described the scientific phenomenon eponymously named the Leidenfrost effect.

The Leidenfrost Effect

The effect Leidenfrost described is a phenomenon in which a liquid, in near contact with a mass significantly hotter than its boiling point, produces an insulating vapor layer which keeps that liquid from boiling rapidly. This is most commonly seen when cooking; one sprinkles drops of water in a skillet to gauge its temperature—if the skillet's temperature is at or above the Leidenfrost point, the water skitters across the metal and takes longer to evaporate than it would in a skillet that is hot, but at a temperature below the Leidenfrost point. It has also been used in some dangerous demonstrations, such as dipping a wet finger in molten lead or blowing out a mouthful of liquid nitrogen, both enacted without injury to the demonstrator.

This is how people can walk on hot coals without burning their feet if they don't walk too far. Solitary