समय मापन प्रौद्योगिकी की समयरेखा

मुक्त ज्ञानकोश विकिपीडिया से
यहाँ जाएँ: भ्रमण, खोज
  • 1000s - Sets of hourglasses were maintained by ship's pages to mark the progress of a ship during its voyage
  • 1335 - First known mechanical clock, in Milan
  • 1676 - Motion works and minute hand introduced by Daniel Quare
  • 1680 - Second hand introduced

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