~~WORD OF THE DAY~~


English: A water clock (clepsydra) Suomi: Vesi...
English: A water-clock (clepsydra) Suomi: Vesikello (Photo credit: Wikipedia)

clepsydra

: clepsydra \KLEP-suh-druh\ noun

: an instrument designed to measure time by the fall or flow of a quantity of water : water-clock

Examples:

The ancient Greeks were known to time political speeches with a clepsydra; when the water was gone, the oration was over. “One of the earliest mechanisms to measure time … was a clepsydra or water-clock … in which a vessel either filled or emptied at some slow, regular rate….” — From an article by David W. Ball in Spectroscopy, December 2006

Did you know?

In ancient times the sun was used to measure time during the day, but sundials weren’t much help after dark, so people around the world invented clocks that used dripping water to mark the hours. In one kind of water-clock, possibly invented by the Chaldean’s, a vessel was filled with water that was allowed to escape through a hole. The vessel’s inside was marked with graduated lines, and the time was read by measuring the level of the remaining water. The ancient Greeks called their water clocks “klepsydra” (“water thief“), which comes from “kleptein” (“to steal”) and “hydōr” (“water”). English speakers stole “clepsydra” from the Greeks in the 16th century. Actual water clocks have become increasingly rare and we now use the word primarily in historical references.

Advertisements

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s