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Solar Radiometers

Browse our collection of Crooke's Solar Radiometers

Solar radiometers are also known as light mills because light moves their blades as opposed to wind for windmills. They consist of an airtight bulb containing a partial vacuum. Inside the glass bulb is a fine vertical spindle with a set of vanes mounted at the top. When the glass bulb is exposed to light, the weather vanes are propelled around, the speed of propulsion increases with the intensity of light, providing a qualitative way of measuring electronmagnetic radiation. These days the Solar radiometer, or Crooke's radiometer (named after Sir William Crooke who invented them), is more of a beautiful science gizmo than a means of accurate measurement. Our Solar Radiometer shop stocks a range of exquisite radiometers which make unusual and interesting gifts for scientists and science enthusiasts.

 

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Curious Minds Crooke's Solar Radiometer, Short Blue Stem, Clear Globe - CuriousMinds.co.uk
Quick buy
Curious Minds
£ 28.99

1 review
Curious Minds Crooke's Solar Radiometer, Tall Twisted Clear Stem, Clear Globe, Clear Mill - CuriousMinds.co.uk
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Curious Minds
£ 36.99 Sold Out

1 review
Curious Minds Crooke's Solar Radiometer, Tall Amber Stem, Clear Globe - CuriousMinds.co.uk
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Curious Minds
£ 28.99

1 review
Curious Minds Crooke's Solar Radiometer, Tall Twisted Clear Stem, Clear Globe, Green Mill - CuriousMinds.co.uk
Quick buy
Curious Minds
£ 32.99

1 review
Curious Minds Crooke's Solar Radiometer, Tall Twisted Clear Stem, Blue Globe - CuriousMinds.co.uk
Quick buy
Curious Minds
£ 34.99
Curious Minds Crooke's Solar Radiometer, Tall Clear Stem, Green Globe - CuriousMinds.co.uk
Quick buy
Curious Minds
£ 32.99
Curious Minds Crooke's Solar Radiometer, Short Clear Stem, Amber Globe - CuriousMinds.co.uk
Quick buy
Curious Minds
£ 28.99
Crooke's Solar Radiometer, Tapered Clear Stem, Clear Globe - CuriousMinds.co.uk
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Curious Minds
£ 28.00
Curious Minds Crooke's Solar Radiometer, Short Clear Stem, Blue Globe - CuriousMinds.co.uk
Quick buy
Curious Minds
£ 28.99

1 review
Curious Minds Crooke's Solar Radiometer, Short Green Stem, Clear Globe - CuriousMinds.co.uk
Quick buy
Curious Minds
£ 28.99
Quick buy
Curious Minds
£ 34.99