Standing 2.5 Inch Radiometer with Colored Glass Stem

Glass Radiometer

The radiometer, also known as a light windmill, demonstrates the scientific principle of converting 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.

This radiometer stand 7" tall and has a 2.5" diameter sphere.

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