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.
  • Photographic telescope was afterwards added, no fewer than 75,000 photographs had been obtained up to the beginning of 1901.
  • From 1847 to 1862 he was advising astronomer to the headquarters of the army and navy; chairman of the International Astronomical Congress from 1867-1878; acting president of the International Metric Commission in 1872; and president of the International Congress for a Photographic Survey of the Stars in 1887, in which year he was also made a privy councillor.
  • In importance next to visual observation, and in the opinion of some, surpassing it, is the photographic method.