Crooks Radiometer Glass Light Mill Solar Power Home Decoration Educational Toy

Description

Crooks Radiometer Glass Light Mill Solar Power
Home Office Decoration Hobby & Educational Toy ( Age 8+)
Invented by
Sir William Crookes, Radiometer is made from a glass bulb in which slight amount of gas is filled
to replace the air and to create the vacuum.
Inside the bulb, on a low friction spindle, is a rotor with four vertical lightweight metal vanes
spaced equally around the axis. The vanes are white on one side and black on the other. 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. 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.
It is a very good example of conversion of (SUN LIGHT)heat energy into mechanical energy.
Specification
Material                   :     Glass
Color                        :     Clear
Base Size                 :    67 mm /2.5"
Height                      :   162 mm/6.5"
Sphere diameter      :   75 mm/3"
Features:
● Magnificent Glass Radiometer, makes a great gift for the one who have everything.
● All made of glass with plastic/ABS base. Hand blown Glass Globe is 3 inch in diameter and the Radiometer stands 6.5 inch tall.
● This physical and technical miracle shows you in a clear way how sunlight is converted to energy.
● Place near a window in Sun Light or under incandescent light and watch as the vanes rotate.
Please allow 1-3 mm error due to manual measurement.
International Buyers are subject to customs or other import related taxes so please bear this in mind before bidding as we are not liable for any delays or fee.