There are no water clock
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It was time to move on from sundials, hourglasses and water clocks
The Chinese team speculated that at least one of these chambers was the sealed room where Zhang's demonstrational armillary sphere, powered by the water clock
, mimicked the motion of the sky.
As an extension, have them try to adjust their water clocks
to measure exactly 30 seconds or 1 minute.
The water clocks
used in China were just the opposite.
Non-mechanical devices for measuring time like a water clock
, candle and sand-timer are to be built into the wall.
King Sejong's other important scientific inventions, such as the sundial, water clock
and rain gauge, will be displayed in front of the statue.
Other treasures on show include an Egyptian water clock
dating from around 1400 BC and a crab - a very dead crab - collected by Charles Darwin on one of his expeditions.
Visitors had hands-on experience of Zheng He model boat, Elephant Water Clock
and two South-Facing Chariots encouraging visitors of all ages to discover and understand some aspects of the contribution of historic scholars to science and technology.
Or Couple, 2008, an ornate water clock
filled with, a yellowish liquid placed delicately on its side on a small, padded display.
The most precise time-keeping device of the ancient world was the water clock
, or clepsydra, one of which was found in the tomb of the Egyptian pharaoh Amenhotep I (1525-1504 BC).
Across the street from it stands the remains of Fes's once-grand medieval water clock
, now ruined.