Wednesday, December 10, 2008
And Everywhere: How Time Has Changed...
Over the years, humans have found increasingly efficient ways to ration the day into smaller – and more precise – units. 3500 through 1500 B.C. The Earliest Clocks. Mechanism: The sun’s movement across the sky, water dripping form a vessel, candles burning down through marked increments. Error:...
Sign in to see full entry.