Crook's Radiometer, 2.75" (70mm) Diameter, Mounted on a Sturdy Plastic Base
- Crook's Radiometer apparatus mounted on a sturdy plastic molded base.
- Comprised on an evacuated glass bulb with black and white veins.
- Comprised on an evacuated glass bulb with black and white veins. Each vein has a blackened side and the reverse side is bright.
- 2.75" (70mm) diameter at the widest point, containing a fine pivot which supports four light weight metal arms.
- Apparatus stands 7" tall.