Crooks Radiometer

Recreation of an 1873 invention by the chemist Sir William Crookes. The Crookes radiometer is an airtight glass bulb containing a partial vacuum. Inside the set of vanes are mounted on a spindle and rotate when exposed to sunlight, the brighter the light, the faster the rotation. This provides a quantitative measurement of electromagnetic radiation intensity. This beautiful model would look stunning on the desk or windowsill of any physicist.

10 x 10 x 22.5 cm


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