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Age Groups10 years and up

Average Rating1rating (Based on 1 review)   Read Review

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ShippingOrder now and it ships Monday

When will it arrive?North IslandTuesday
South IslandWednesday
Please allow 1-2 extra days for rural delivery

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This solar radiometer is great for demonstrating the power in sunlight. Place it in a window and watch it go!

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..

Reviews (1)

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Item never worked at all - right out of the box, no visible damage, appeared to be in good order - just didn't spin - looks like it should work . .

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