• <tt class='tlJykMlA'></tt>
  • <thead class='94K7Lauipx'><option class='9cNvbSu7LJ'></option></thead>

    <em class='jepytdnyfeW3'><b class='oR1Ys12nk'><td class='6rzzLTN'></td></b></em>

  • <dl class='Td0EmkF'><b class='qoWhaibfJ9'></b></dl>

  • <span class='lS1G'></span>

    Sidebar

    History of Timepieces

    The development and improvement of timepieces

    Technological Development Ancient Timepieces By Country Bottom
    • Technological Development of Timepieces
      • All Types
      • by David Thompson, Curator of Horology at the British Museum
      • , National Institute of Standards and Technology
      • from Time for Time for students and teachers
      • by Dr. Barbara J Becker, including a rare glimpse into an early, elaborate Chinese clepsydra
      • from Old and Sold Antiques Auction & Marketplace
      • from ThoughtCo
      • by Donn Haven Lathrop
      • Watches
      • from Old and Sold Antiques Auction & Marketplace
      • from Time Machine
      • Chronology of the Development of Watches by Parnav Singh, Adobe Acrobat 23KB
      • by David Boettcher
      • by Ron Price
      • by David Boettcher
      • by David Boettcher
      • by David Boettcher
      • by Bruno Jousselin
      • The History of Watches by Alan Costa, Adobe Acrobat 69KB
      • from John Vincent Watchmaking
      • by David Boettcher
      • , an article from the July 1869 Harpers, courtesy of oldwatch.com
      • by Joseph Flores
      • by David Boettcher
      • Clocks
      • from Atlas Obscura
      • from Anthony Gray Clocks
      • from Old and Sold Antiques Auction & Marketplace
      • , National Institute of Standards and Technology
      • , Antique Clocks Price Guide
      • from Mystical World Wide Web
      • from DiscoverClocks.com
      • by Al Van Helden
      • from ThoughtCo
      • by Henry E Warren [1937]
      • The Origin and Evolution of the Anchor Clock Escapement by Mark Headrick, Adobe Acrobat 1.1MB
      • , National Institute of Standards and Technology
      • from Time for Time for students and teachers, from Sun Clocks to Atomic Clocks
      • Specific Types of Clocks
      • by George Burnett-Stuart
      • by R Mackey
      • from The World of Cuckoo Clocks
      • by Lothar Frerking
      • , by Warren A Marrison, The Bell System Technical Journal, 1948
      • by Steve Nelson
      • from Clockarium Museum
      • by J E Bosschieter, with animated graphics
      • from P.A. Oxley Antique Clocks
      • from Malkin Clocks
      • by John N. Wilford
    • Ancient Timepieces - Hourglasses, Water Clocks, Sundials, Astrolabes
      • by Rob S Rice
      • by Carlos Perez
      • by Carlos Perez
      • by Britannica.com
      • by Silke Ackermann, History and use
      • , an instrument with a past and a future
      • , excavated in 1790
      • from Smith College
      • , National Institute of Standards and Technology
      • from ThoughtCo
      • nearly 10,000 years old, from Phys.org
      • - NASA KIDS. Step-by-step guide on how to make a sundial
      • , from Fact Monster

    Technological Development Ancient Timepieces By Country Top