Heat

Ideal for classroom demonstration, this hydroelectric power station model allows students to directly observe the process of conversion of water flow to electrical energy that occurs in hydroelectric power plants. The water turbine is mounted on a plastic base together with a dynamo, newton disc, lamp, LED, and a two-way selecting switch. The switch selects delivering power to either a lamp or a Newton’s Color Disc. The LED can be removed if you instead want to draw current from the 4 mm output terminals. Includes instructions.

Four-stroke water-cooled diesel engine, shows functioning of fuel injection system together with hot coil starting device.

Hero’s Engine demonstrates the principle of jet propulsion. The apparatus consists of a small Erlenmeyer flask with a rubber stopper and two tubes with tangentially oriented jets. A collar is provided around the flask to hang it above a heating source. When water boils inside the flask, steam escapes the jets and the flask spins.