Who developed the water clock in 300 BCE?
For a more exact measurement of time, the ancient Egyptians developed a water clock made from stone, copper, or pottery. The Greeks referred to it as a klepsydra (the Latinized variant is clepsydra), literally a “water thief”. An inscription in his tomb identifies one Amenemhet, a court official who lived ca.
Why did Ctesibius of Alexandria invent the organ?
Ctesibius has also been credited with the invention of the organ. He recognized that water displaced air in a bucket and used that principle to keep the pressure high in the organ even when the pump was on the recovery cycle.
What did Ctesibius invent?
Who used the water clock?
Clepsydra, also called water clock, ancient device for measuring time by the gradual flow of water. One form, used by the North American Indians and some African peoples, consisted of a small boat or floating vessel that shipped water through a hole until it sank.