The vanes, or wings, affixed to the center pole of this solar radiometer are alternately dark and light in color. When the light strikes these wings it transfers heat to each one - but not to the same degree. The lighter wings reflects the sun's rays and the darker wings absorbs. The stronger the light, the more energy present to heat up the darker side of the wing causing the wings to spin faster. The scientific property that this elegant glass device demonstrates is heat transfer. The wings of the radiometer spin under natural solar light or a regular light bulb. Perfect for science projects, as a gift or as a desk amusement!
The Wimshurst Machine is a high quality static machine for student labs.
Build over 100 exciting electronic projects with this easy to use kit!
Every kid needs one of these spheres!
Use this awesome prism to teach about optics and light in the classroom setting!
This smaller transportable Van de Graaff Generator will easily fit in any classroom!
Make the coolest 3D pin art on your desk with this amazing desk toy.
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