Sentence Examples


  • Thus a monochromatic image of the sun is built up on the fixed photographic plate.
  • They all squeezed into the front seat—the back seat was piled high with photographic equipment and camping gear.
  • Potassium ferrous oxalate, FeK2(C204)2 H20, is a strong reducing agent and is used as a photographic developer.
  • He especially devoted himself to investigations of the radiation of heat from the sun and its absorption by the earth's atmosphere, and to that end devised various delicate methods and instruments, including his electric compensation pyrheliometer, invented in 1893, and apparatus for obtaining a photographic representation of the infra-red spectrum (1895).
  • Photographic telescope was afterwards added, no fewer than 75,000 photographs had been obtained up to the beginning of 1901.
 

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