
Candle boat experiment
The candle boat with thermoelectric drive and tea light from Exergia.
The warmth of a tea light is enough to make the boat sail. The candle heats a thermocouple on one side and water cools on the other side. The temperature difference generates electrical voltage that drives the motor and thus the ship's propeller.
Tools required: screwdriver and pliers.
Dimensions: 8" x 4" x 4"