IKEPOD Onion Radiometer Solar Crookes - Sunlight Energy and Electromagnetic Radiation Detection Light Mill with Spinning Vanes Windmill Inside, Ideal Gift for Student or Science Guru
SPECIFICATION - Material: Borosilicate Glass, Base diameter: 75mm, Height: 210mm, Sphere diameter: 80mm, Color: Clear & Black
COMPOSITION - Consists of an airtight glass bulb containing a partial vacuum, with a set of vanes which are mounted on a spindle inside.
INSTRUCTIONS - 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.
IDEAL GIFT - As a novelty ornament, it's a nice gift for our family and friends to express elegant quality life way, adding a modern contemporary look to your home/office.
NOTE - It is fragile as it is made of the glass. Please do not shake the radiometer hardly, It may affect the vanes rotation effect.
