Solar Radiometer, Solar Crookes Light Mill. Chain of 3 Radiometers; Large, Medium and Small with Drop. Clear


Huge Savings Item! Save 18% on the Solar Radiometer, Solar Crookes Light Mill. Chain of 3 Radiometers; Large, Medium and Small with Drop. Clear by Lilyshome at Climate Witness. MPN: SW406. Hurry! Limited time offer. Offer valid only while supplies last. Invented in 1873 by the chemist Sir William Crookes as the by-product of some chemical research, the radiometer is made from a glass bulb from which much of the air has been removed to form a partial vacuum. Inside the bulb, on a low friction spindle, is a rotor with several (usually four) vertical lightweight metal vanes spaced equally around the axis. The vanes are polished or white on one side and black on the other. When exposed to sunlight, artificial light, or infrared radiation (even the


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Product Description & Reviews

Invented in 1873 by the chemist Sir William Crookes as the by-product of some chemical research, the radiometer is made from a glass bulb from which much of the air has been removed to form a partial vacuum. Inside the bulb, on a low friction spindle, is a rotor with several (usually four) vertical lightweight metal vanes spaced equally around the axis. The vanes are polished or white on one side and black on the other. When exposed to sunlight, artificial light, or infrared radiation (even the

 


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