Welcome visitor you can login or create an account.
Evacuated glass bulb of approx. 70mm diameter having fine pivot at its centre which supports four light weight vane of mica 10mm square approx. and blackened on one surface. Mounted on a bakelite stand. When exposed to sunlight or bright lamp, the rotor rotates rapidly. Solar Radiometer.
Curious Minds Science Shop ©2012 - VAT 900 3824 61
