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RADIOMETER - RUN BY THE SUN

Item #: 381800
Experience this sphere powered by the sun! The vanes in the Radiometer alternate in dark and light colors. When the light strikes these vanes it transfers heat to each one, but not at the same degree. The lighter vane reflects the rays and the darker vane absorbs the rays. The stronger the light, the more energy there is, causing the vanes to spin faster. Ages:14+
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Item #:
381800
Weight:
0.10 lbs
Country of Origin:
CHINA
Category:
Toys, Games, Puzzles > Toys
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