Glass construction for authentic appearance and durability
Replicates the original Crookes radiometer mechanism for educational value
Clear color for a classic, elegant look
Suitable for home decor or as a collectible item
This captivating physics toy transforms light into action. Invented in 1873 by the chemist Sir William Crookes as the by-product of some chemical research, the Radiometer is made from a glass bulb with a set of four two-tone vanes inside. All the air has been removed from bulb which creates a partial vacuum and allows vane to rotate freel