The Amazing Hand Boiler

The hand boiler is a looped and twisted glass sculpture containing a liquid that will “boil” when you hold it from the heat transferred from your bare hand.  Simply hold the large bulb end in the palm of your hand and watch as the liquid will begin to rise and bubble using only your body heat.  A really cool way to learn about energy transfer!

Contains glass.  Not suitable for children under 3 years of age.