Crookes Radiometer, also known as a solar engine, is a mesmerising and simple gizmo that is powered by light energy.
A glass bulb encases four vanes in a vacuum. Shine light on the bulb and watch the black sides of the vanes spin away from the light which the white sides move towards it.
Put it in bright sunlight and watch it spin at high speeds!
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Microwave Radiometer Systems: Design and Analysis, Second Edition | List Price: £80.00 Sale Price: £75.80 |
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Radiometer: Zur Auseinandersetzung um ein neues Erhebungsinstrument in der Radionutzungsforschung | List Price: £55.00 Sale Price: £46.75 |
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Solar Radiometer Crookes Lightmill Clear Sphere All Glass | Sale Price: £16.60 |
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Solar Radiometer Crookes Lightmill Clear Sphere 80mm | Sale Price: £20.90 |
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Solar Radiometer Crookes Lightmill Clear Sphere 90mm black feet | Sale Price: £29.90 |
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