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| Solar Radiometers |
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| Age, Key Stage |
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Solar Radiometer, long glass stem
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In a vacuum inside a free-standing globe the vanes constantly revolve in sunlight. The simplest possible demonstration of solar power.
The radiometer is made by traditional Thuringian hand-blowing in Germany, of crystal-clear Lauschaer bottle glass.
In the glass body is a 4-vane drive assembly, which turns under the influence of light. One side of each vane is black, the other is silver.
Height: ca. 20.5 cm. (8 in)
Globe diameter: ca. 8cm. (3.25 in)
The Crookes radiometer was invented by the... more >>> |
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£25.50 |
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Crooke’s Radiometer, bakelite stand
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Evacuated glass bulb of approx. 70mm diameter having fine pivot at its centre which supports four light weight vane of mica 10mm square approx. and blackened on one surface. Mounted on a bakelite stand. When exposed to sunlight or bright lamp, the rotor rotates rapidly.
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£17.95 |
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Solar Radiometer, blue
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This radiometer is made by traditional Thuringian hand-blowing in Germany, of Lauschaer bottle glass - blue-tinted for the globe, clear for the top and foot.
In the glass body is a 4-vane drive assembly, which turns under the influence of light. One side of each vane is black, the other is silver.
Height: ca. 15cm. (6 in)
Globe diameter: ca. 8cm. (3.25 in)
The Crookes radiometer, also known as the light mill or solar engine, consists of an airtight glass bulb, containing a partial vacuum. Inside... more >>> |
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£25.50 |
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Solar Radiometer, wood stem
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In a vacuum inside a free-standing globe the vanes constantly revolve in sunlight. The simplest possible demonstration of solar power.
The radiometer is made by traditional Thuringian hand-blowing in Germany, of crystal-clear Lauschaer bottle glass.
In the glass body is a 4-vane drive assembly, which turns under the influence of light. One side of each vane is black, the other is silver.
Height: ca. 23 cm. (9 in)
Globe diameter: ca. 8cm. (3.25 in)
The Crookes radiometer was invented by the... more >>> |
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£30.60 |
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Solar Radiometer, amber
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This radiometer is made by traditional Thuringian hand-blowing in Germany, of Lauschaer bottle glass - amber-colored for the globe, clear for the top and foot.
In the glass body is a 4-vane drive assembly, which turns under the influence of light. One side of each vane is black, the other is silver.
Height: ca. 15cm. (6 in)
Globe diameter: ca. 8cm. (3.25 in)
The Crookes radiometer, also known as the light mill or solar engine, consists of an airtight glass bulb, containing a partial vacuum.... more >>> |
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£25.50 |
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Einstein Radiometer
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This radiometer displays the famous mass-energy equivalence derived by Albert Einstein in his Special Theory of Relativity. It is made by traditional Thuringian hand-blowing in Germany, of crystal-clear Lauschaer bottle glass.
In the glass body is a 4-vane drive assembly, which turns under the influence of light. One side of each vane is black, the other is silver.
Height: ca. 15cm. (6 in)
Globe diameter: ca. 8cm. (3.25 in)
The Crookes radiometer, also known as the light mill or solar engine,... more >>> |
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£35.25 |
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Radiometer double sphere with stand
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The radiometer double sphere has 2 globes made of crystal glass in which are rotors turned by light. The foot is made of crystal glass by the Lauscha glass manufacturer.
This article has the protected trademark of the Thuringian glassblower federation Lauschaer Glaskunst ®.
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£45.00 |
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Radiometer with a tin foot
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Order no.: R 090713 (diameter: 80 mm)
Clear radiometer sphere with a tin foot produced by the tin molder company Bartel in Freiberg by hand.
The radiometer is ca. 18 cm high.
Product of the brand mark Lauschaer Glaskunst.
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£58.00 |
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