Examples from the Web for radiometer
The first endeavor led to the construction of the radiometer.
Thus it appears that we have been able to show by very definite experimental evidence that the radiometer is a heat engine.Scientific Culture, and Other Essays|Josiah Parsons Cooke
Count Bathyani recently took up a radiometer to a height of about a mile.The Galaxy, April, 1877|Various
The latest use to which the radiometer has been put was to test the viscosity of gases at decreasing pressures.The Galaxy|Various
The spectroscope and the radiometer are more wonderful than any ‘supernatural’ thing yet heard of.British Goblins|Wirt Sikes