Radiometer
Radiometer
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Radiometer

Radiometer

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Key item features

Experience this sphere powered by the sun! It spins when sunlight warms the dark vanes and is reflected by the white ones. The stronger the light, the faster it spins! No batteries required.

Features
  • Vanes in the Radiometer are alternately dark and light in color
  • Vanes transfer heat to each one but not at the same degree
  • Lighter vane reflects the rays and the darker vane absorbs the rays
  • For ages 7 and above
- SKU: ZX9TDCTY018
Current price is $22.23
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