Crookes radiometer (light mill)
This radiometer works like a solar engine and converts light into motion and demonstrates radial heat. The crooks radiometer (also known as a light mill) consists of an airtight glass bulb containing a partial vacuum, with a set of vanes which are mounted on a spindle inside. The vanes rotate when exposed to light, with faster rotation for more intense light, providing a quantitative measurement of electromagnetic radiation intensity.
Cat. No. 2210110103