Thermodynamic Hand Boiler Case

Thermodynamic Hand Boiler Case Thermodynamic Hand Boiler Case A hand boiler is a uniquely looped and twisted glass vessel that is filled with colored ethyl alcohol and appears to "boil" when held in the the human hand. Your young scientist will be fascinated when they hold the large bulb end in the palm of their hand and within minutes their body heat will cause the liquid to rise. Once out of their hands, within a few minutes when the liquid cools down, the liquid will return to the large bulb. This is an excellent demonstration of the principles of air pressure, thermodynamics, and energy transfer. Or use it as a novelty item. It comes in 4 differnt colors: red, blue, green, and purple. We will choose an assortment for you. Makes for fun science fair awards, gifts, birthday party favors or door prizes.

Thermodynamic Hand Boiler Case