What is a Crookes Radiometer and how does it work?
Crooke’s Radiometer, also called a light mill or solar engine consists of a vacuum sealed glass vessel with a four sided vane suspended in the middle. Each leaf of the vane is colored black on one side and silver on the other. When the radiometer is exposed to light, the vane inside will spin on its own accord. Depending on the strength of the light source will determine the speed in which the vane will spin.
Sir William Crookes (1832 -1919) was a British chemist and physicist who was a pioneer in the field of vacuum tubes. While investigating infrared radiation and the element thallium, he developed a special kind of radiometer, an instrument for measuring radiant energy of heat and light.
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Item No: CLM-05-OR
QTY Per Ca: 20 PCS
Gross Weight: 26.5 LBS
Ca Dim: 26″ x 17″ x 11.1″