Ancient and Medieval Era
Early uses of water power date back to Mesopotamia and ancient Egypt, where irrigation has been used since the 6th millennium BC and water clocks had been used since the early 2nd millennium BC. Other early examples of water power include the Qanat system in ancient Persia and the Turpan water system in ancient China.
Read more about this topic: Hydro Dynamics
Famous quotes containing the words ancient and, ancient, medieval and/or era:
“Let him not quit his belief that a popgun is a popgun, though the ancient and honorable of the earth affirm it to be the crack of doom.”
—Ralph Waldo Emerson (1803–1882)
“Only the sound remains,
the distant thump of the good elephants,
the voice of the ancient lions
and how the bells
trembled for the flying man.”
—Anne Sexton (1928–1974)
“The medieval town, with frieze
Of boy scouts from Nagoya?”
—John Ashbery (b. 1927)
“The fantasies inspired by TB in the last century, by cancer now, are responses to a disease thought to be intractable and capricious—that is, a disease not understood—in an era in which medicine’s central premise is that all diseases can be cured.”
—Susan Sontag (b. 1933)