你即將離開本站

並前往https://www.nist.gov/pml/time-and-frequency-division/popular-links/walk-through-time/walk-through-time-early-clocks

A Walk Through Time - Early Clocks | NIST

Water clocks were among the earliest timekeepers that didn't depend on the observation of celestial bodies. One of the oldest was found in the ...

確定！ 回上一頁

查詢 「Water clock」的人也找了：

  1. water clock中文
    2.
  2. Water clock
    3.
  3. Water clock Egypt
    4.
  4. Mechanical clock
    5.
  5. Sundial
    6.
  6. Pendulum clock
    7.
  7. Clock History
    8.
  8. Atomic clock
    9.