Description
- Made of glass material, sturdy and durable
- Boils the liquid with your own body temperature. Cup the lower chamber in your palm and watch how the liquid boils and rises through the tubes into the top chamber
- Hand Boilers are looped and twisted glass sculptures containing a liquid that will "boil" as heat is transferred from your bare hand
- It is a pretty fascinating science toy and an excellent demonstration of energy transfer
- It can also be placed anywhere in the living room as an ornament.