Aflytep 20.5cm Glass Solar Powered Crookes Radiometer Light/Educational Teaching Study Tool/Office

Subject: Physics Just place near a or under a direct incandescent light as the vanes only rotates in light (sunlight or incandescent light). The shine on the globe the faster the vanes rotates. Inside the bulb, on a low friction spindle, is a with (usually four) vertical metal vanes spaced equally around the . The vanes are 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 , the dark sides retreating from the radiation source and the light sides advancing. Magnificent Glass Radiometer, makes a great have everything. All made of glass.This and technical miracle shows you in a clear way how sunlight is converted to energy.Place near a or under incandescent light and watch as the vanes rotate., Manufacturer: Aflytep