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  28 March 2021

Solar Power radiometer model

  28 March 2021

Solar Power radiometer model

32,00

Specification:
Material: Glass
Color: Clear
Base Size: 80mm/3.1″
Height: 205mm/8.1″
Sphere diameter: 90mm/3.5″

Package Included:
1 x Crookes Radiometer

Features:
● Magnificent Glass Radiometer, makes a great gift for the one who have everything.
● All made of glass. Globe is 3.5 inch in diameter and stands 8 inch tall.
● This physical and technical miracle shows you in a clear way how sunlight is converted to energy.
● Place near a window or under incandescent light and watch as the vanes rotate.

Notice:
1.Please allow 1-3mm error due to manual measurement.Pls make sure you do not mind before you bid.
2.The color may have different as the difference display,pls understand

SKU: 010 Category:

Description

Invented in 1873 by the chemist Sir William Crookes as the by-product of some chemical research, the radiometer is made from a glass bulb from which much of the air has been removed to form a partial vacuum. Inside the bulb, on a low friction spindle, is a rotor with several (usually four) vertical lightweight metal vanes spaced equally around the axis. The vanes are polished or white on one side and black on the other. When exposed to sunlight, artificial light, or infrared radiation (even the heat of a hand nearby can be enough), the vanes turn with no apparent motive power, the dark sides retreating from the radiation source and the light sides advancing. Just place near a window or under a direct incandescent light as the vanes only rotates in light (sunlight or incandescent light). The more light shine on the globe the faster the vanes rotates.

color

as image

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