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Newton's reflecting telescope

K007/0021

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Credit

POWER AND SYRED / LIBRERIA BARDON / SCIENCE PHOTO LIBRARY POWER AND SYRED / LIBRERIA BARDON / SCIENCE PHOTO LIBRARY

Caption

Animated model of the reflecting telescope designed and built by the English scientist Isaac Newton in 1671-2. Unlike earlier telescopes, which used lenses to focus light, Newton's designs used a concave mirror to focus light, helping to prevent the splitting of colours seen with lenses. This telescope was the third built by Newton, and had a mirror some 5 centimetres in diameter. Newtonian telescopes remain popular, as a large mirror is cheaper and lighter to construct than a lens giving the same light-gathering and magnifying power. Newton used his telescope to observe the phases of Venus and the moons of Jupiter. See clip K007 0020 for the same model on a transparent alpha channel.

Release details

Model release not required. Property release not required.

Clip Properties:

  • Duration: 00:00:30
  • Audio: No
  • Original Frame Size: 3840x2160
  • Interlaced: No
  • Capture Format: QuickTime Animation
  • Codec: Apple ProRes 4444

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