Thermodynamics
Hero's Engine
PIRA Class: 4F30.10

Purpose
Observe the conservation of energy involving heat transfer and work output.

Description
A flask (inside sleeve of a thermos) constructed such that the vents are constructed in opposite directions. Liquid nitrogen changes phase as heat flows into system from surroundings. As "steam" exits the vents, flask will spin.

Alternative: Use a glass Hero's Engine flask and heat the water using a propane burner

Equipment
Thermos Hero's Engine