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Product Description:

Experience this sphere powered by the sun! The vanes in the Radiometer are alternately dark and light in colour. When the light strikes these vanes, it transfers heat to each one - but not at the same degree. The lighter vane reflects the rays and the darker vane absorbs the rays. The stronger the light, the more energy there is causing the vanes to spin faster.

This product contains small parts and is a choking hazard so not suitable for children under 3 years old.

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Item ships from and is sold by Fishpond World Ltd.
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