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Solar Radiometer

by Tedco   Product#: 10094   (5 customer reviews)

Price: $14 /each
List Price:$19.99
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The vanes, or wings, in this solar radiometer are alternately dark and light in color. When the light strikes these wings it transfers heat to each one - but not at the same degree. The lighter wing reflects the rays and the darker wing absorbs. The stronger the light, the more energy there is to heat up the darker side of the wing causing the wings to spin faster. It spins under the solar light or a regular light bulb. Great for science projects, as a gift or as a desk amusement!


  • Uses heat transfer to spin
  • No batteries required; the radiometer is powered entirely by light
  • Either solar or indoor light works
  • Great desk toy
  • Great for solar science lessons

Recommended for ages 8 and older.

Box Size: 5.25in (13.34cm) x 3.25in (8.26cm) x 3.25in (8.26cm)
Weight: 0 lb 3 oz ( 0.08 kg )

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Customer Reviews

  Good Classroom Tool
Posted on: May 27 2014 by: Cynthia from USA, UT, Draper

This is an awesome way for students to learn that solar radiation is a form of energy.

  Radiometer fun
Posted on: Feb 25 2013 by: Maria from Cedar Rapids, IA

Love to watch this work and think about the science behind it. Great tool for teaching about energy.

  Great Conversation Piece!
Posted on: Nov 7 2012 by: Eric Holmes from Moose Jaw, Canada

Everyone that sees it will stop and look at it rotating and then will have a theory on what makes it rotate.

Posted on: Oct 20 2012 by: Joan from Tulsa, Oklahoma

This is so fun. I broke my mother's radiometer, so had to replace it. A good price for a great product.

Posted on: Sep 4 2012 by: from

intriguing, fun

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