Crookes Radiometer
Innovations / Science Gadgets
A visually captivating instrument, the Crookes Radiometer resembles a glass lamp filled with intricately designed vanes. Its functionality hinges on radiation pressure and its effects in a partial vacuum. When positioned under sunlight, the vanes exhibit a continuous spinning motion, a spectacle attributed to the temperature differential between the contrasting black and white sides of each vane. Serving as an exemplar in physics demonstrations, the Crookes Radiometer unravels the nuances of radiation pressure and gaseous behaviour under vacuum conditions. An ideal possession for both the academic and the aficionado.