Crookes Radiometer Solar Energy Glass Spinner

Invented in the 19th century by William Crookes, the radiometer became a well-known scientific demonstration device illustrating the interaction between light, heat, and low-pressure gas movement. This glass Crookes radiometer with a rotating black-and-silver vanes is enclosed within a partially evacuated glass bulb. Measuring approximately 3.94 inches wide by 6.3 inches high. When exposed to sunlight or strong artificial light, the internal vanes begin spinning, with brighter light producing faster rotation.

Size: 0