Place one leg in cold water and the other in hot water. The temperature gradient will cause the fan to spin. It is crucial to understand that it is the temperature gradient, not just the heat itself, that causes the motor to work and spin the fan. This process derives from the Second Law of Thermodynamics, as heat must always flow from hot to cold.
Place one leg in cold water and the other in hot water. The temperature gradient will cause the fan to spin. It is crucial to understand that it is the temperature gradient, not just the heat itself, that causes the motor to work and spin the fan. This process derives from the Second Law of Thermodynamics, as heat must always flow from hot to cold.