Answer | Crossword Clue |
---|---|
pyrgeometer | an instrument for measuring the loss of heat by radiation from the earth's surface |
pyrgeometers | PYRGEOMETER, an instrument for measuring the loss of heat by radiation from the earth's surface |
tiltmeter | an instrument for measuring tilting of earth's surface |
tiltmeters | TILTMETER, an instrument for measuring tilting of earth's surface |
radiomicrometer | an instrument for detecting and measuring small amounts of radiation, usually by a sensitive thermocouple |