The Inspirations Store gift shop
The Inspirations Store gift shop
solar radiometer gifts online ...
solar radiometer gifts and presents
Solar Radiometer
The solar radiometer also known as a light windmill was invented in 1873 by the english physicist Sir Edward Crooks.
The radiometer uses light and converts it to energy and hence motion.
The radiometer has a glass globe which is a sealed vacuum to prevent air resistance and the globe contains a wheel that is precisely balanced.
Each paddle on the wheel has a dark side and a shiny metallic side.
The dark side of the paddle absorbs more light than the metallic side creating pressure and producing motion.
The solar radiometer works with warm light, that is sunlight or the light from electric bulbs, but not cold neon light.
 
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