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  • Transit telescope?
  • Farnham
  • The Duffields' Grave
  • Askania vertical circle
  • US 'Echo' Satellite, 1960
  • Mechanical workshop
  • Telescope construction
  • Telescope construction
  • Telescope construction

US 'Echo' Satellite, 1960

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US 'Echo' Satellite, 1960 The US 'Echo 1' satellite was an experimental communications satellite - effectively, it was a giant metallised balloon place into orbit.