A  Science and Technology Odyssey In Cyberspace-Time 
20000 BC to 1800 AD
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Title Page

20000BC-301BC

300BC-1499AD

1500 - 1699

1700 - 1800

Hydraulics

"Siphon Principle - Hero, a Greek who lived after 150 B.C. was the first hydraulic engineer. He modernized the obtaining of water through a method known as the siphon principle. The siphon principle allows the pipes that carry the water to follow the terrain of the land and the aqueduct and bridging techniques were no longer used as often. For example, such a device was used for the citadel at Pergamon. The pipes that connected to the citadel had approximately 300 pounds of pressure per square inch and the pipes were most likely made of metal in order to withstand the pressure." from Science in Ancient Greece

Marie Curie's Search for Radium (Science...

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