What is a Crookes Radiometer and how does it work? Sir William Crookes (1832 -1919) was once a British chemist and physicist who was once a pioneer in the field of vacuum tubes. At the same time as investigating infrared radiation and the element thallium, he developed a special more or less radiometer, an instrument for measuring radiant energy of warmth and light. Crooke’s Radiometer, often known as a light mill or solar engine consists of a vacuum sealed glass vessel with a four sided vane suspended in the middle. Every leaf of the vane is colored black on one side and silver at the other. When the radiometer is exposed to light, the vane inside will spin by itself accord. Depending at the strength of the light source will decide the speed in which the vane will spin.
High Quality Ornament Made From Optical Quality Glass
Great For Gadget And Science Buffs
Includes Hanging Hook And Detailed Instructions / History
Inner “Vane” Rotates Without Any Power When Placed Near A Light Source
Educational – Powered By Scientific Principles Found out By Sir William Crookes (1832 -1919)
Frequently Bought Together
This item: Glassic Gifts Hanging Crooks Light Mill Glass Ornament$16.00