| Answer | Crossword Clue |
|---|---|
| calorimeters | CALORIMETER, an instrument for measuring absorbed or evolved heat |
| calorimeter | an instrument for measuring absorbed or evolved heat |
| pyroscope | an instrument for measuring intensity of radiant heat |
| pyroscopes | PYROSCOPE, an instrument for measuring intensity of radiant heat |
| panradiometer | an instrument used for measuring radiant heat independently of wavelength |
| panradiometers | PANRADIOMETER, an instrument used for measuring radiant heat independently of wavelength |
| 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 |
