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Radiometer

Radiometer

2 total reviews

    This Radiometer is made from a glass bulb from which much of the air has been removed.  Inside the bulb, on a low-friction spindle, is a rotor with 4 vanes.  Each vane has one blackened side and one silvered side; one black vane features a white dot in order to count rotations easily.  When exposed to sunlight or artificial light, the vanes turn with no apparent motive power.  This effect is due to differential heating of the black and silvered vanes. 

    Dimensions 6" x 4" x 4" 



      Regular price $17.99
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      Customer Reviews

      Based on 2 reviews
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      E
      E.F. (California, United States)
      Radiometer

      The best for introducing students to dynamic effects of light. They love covering it with their hands without being told-innate experimentation!

      R
      R.G. (Virginia, United States)

      Easy purchase, arrived without damage.

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