| Answer | Crossword Clue |
|---|---|
| THERMOPILE | Apparatus producing electric energy. |
| generator | An apparatus for producing gas, steam, or another product |
| spectroscope | An apparatus for producing and recording spectra for examination |
| generators | An apparatus for producing gas, steam, or another product |
| spectroscopes | An apparatus for producing and recording spectra for examination |
| tokamaks | A toroidal apparatus for producing controlled fusion reactions in hot plasma |
| siren | apparatus producing musical tones especially in acoustical studies by the rapid interruption of a current of air, steam, or fluid by a perforated rotating disk |
