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Solar RadiometerInvented in 1873 by chemist & experimenter Sir William Crookes, the solar radiometer was the first way in which man could demonstrate light as an energy source. The radiometer consists of an airtight glass bulb, containing a partial vacuum. Inside are a set of metal vanes which are mounted on a spindle. When exposed to sunlight, artificial light, or infrared radiation, the vanes turn with no apparent motive power, the dark sides retreating from the
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Invented in 1873 by chemist & experimenter Sir William Crookes, the solar radiometer was the first way in which man could demonstrate light as an energy source.
The radiometer consists of an airtight glass bulb, containing a partial vacuum. Inside are a set of metal vanes which are mounted on a spindle. When exposed to sunlight, artificial light, or infrared radiation, the vanes turn with no apparent motive power, the dark sides retreating from the radiation source and the light sides advancing...the more intense the light, the faster the rotation.
Handmade in Germany
Small - H: 12,5cm Ø: 6cm
Large - H: 17cm Ø: 9,5cm
Tall - H: 21cm Ø: 8cm
Solar Radiometer
Item no
:
81242401022
US$ 68.00
Pay in 4 interest-free payments of $17.00 Learn more
Min. order:
1piece
Shipping Estimate
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- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 29 - Aug 3
US$40
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- Free Standard Shipping on $100+ Orders to the USA.
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