Question:

What Is This Gadget Called??

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It is a small glass spehere on a stand, inside is like a turbine kind of thing, with one side of each part black so as the sun hits it it causes it to spin.

Anybody any idea's?

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2 ANSWERS


  1. crookes radiometer


  2. I believe it's called a radiometer.  The "turbine" that you are talking about is inside a vacuum in the glass sphere.  The black fins, or "veins" as they might be called, generate potential energy by absorbing light rays; this energy gets converted into motion, or kinetic energy, causing the turbine to spin.

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