The first ever recorded steam engine, invented almost two millennia ago!

change of state, energy conversion, expansion, Newton's third law

Useful Links: NASA provides a quaint description of how the Hero's engine is a form of propulsion here: http://history.msfc.nasa.gov/rocketry/02.html This is a video of the demo: http://www.youtube.com/watch?v=Drk43G9s4tU

Not currently functional. Bearing needs replacement?

A demonstration of torque and angular acceleration that is also an example of the conversion of heat to kinetic energy.

Hero's Engine, Bunsen burner (or a heat gun) and stand.

1. Heat water in the bulb using a Bunsen burner. 2. When steam begins to jet, the engine will rotate.