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Demonstrates the scientific theory of converting light into energy
Watch this radiometer spin in sunlight or well-lit rooms
Braided stem features a 3.5" cognac sphere
Stands approximately 10" tall
Makes a great addition for the home or office!
The radiometer, also known as a light windmill, is an instructive physical object which actually demonstrates a scientific theory, namely, converting light into energy. This theory shows how the radiometer converts light into energy. The radiometer will spin 2000 revolutions per minute in warm light, such as sunlight and well lit rooms. They will not spin using fluorescent lights. These radiometers are truly one of a kind.