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Curated category

Astronomical instruments

  • Armillary sphereA brass framework of graduated rings stands at the center of an armillary sphere. This metal skeleton represents lines of celestial longitude and latitude.
  • TelescopeHans Lipperhey submitted a patent application to the government in the Netherlands during 1608. This document described a device using glass lenses to view…
  • OrreryA wreck off the Greek island of Antikythera yielded a bronze mechanism in 1901. This artifact dates between 205 and 87 BC.