How to use Clepsydra in a sentence

clepsydra
  • The Greeks first invented a working alarm clock around 250 BC, when they created a water clock, also known as a "clepsydra."

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  • In the Drum Tower incense-sticks, specially prepared by the astronomical board, are kept burning to mark the passage of time, in which important duty their accuracy is checked by a clepsydra.

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  • The various approaches to the citadel on the northern side - the rock-cut flight of steps north-east of the Erechtheum, the stairs leading to the well Clepsydra, and the intermediate passage supposed to have furnished access to the Persians - are all to be attributed to the primitive epoch.

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  • The Pelasgic wall enclosed the spring Clepsydra, beneath the north-western corner of the Acropolis, which furnished a watersupply to the defenders of the fortress.

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  • On the north-west rock the caves known as the grottoes of Pan and Apollo were cleared out; these consist of a slight high-arched indentation immediately to the east of the Clepsydra and a double and somewhat deeper cavern a little farther to the east.

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  • The first, for a memoir on the construction of a clepsydra for measuring time exactly at sea, he gained at the age of twenty-four; the second, for one on the physical cause of the inclination of the planetary orbits, he divided with his father; and the third, for a communication on the tides, he shared with Euler, Colin Maclaurin and another competitor.

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