Chinese Water Clock

1. Chinese Water Clock Due: Oct. 19 By: Deonte Williams

2. Ancient Water Clocks • A Chinese is an ancient time measuring apparatus by the amount of dripping water. In China or east Asia , water clocks are very important of astronomy and astrology.

3. The Oldest Dates • The oldest reference dates the use of the water-clock in China to the 6th century BC.[16] From about 200 BC onwards, the outflow clepsydra was replaced almost everywhere in China by the inflow type with an indicator-rod borne on a float.

4. Who Invented The Water Clock? • Su Song was fascinated with clocks. He wondered how they worked. So he decided that he’ll try to make one himself.

5. Problems With Clock • Su-Sung got around that problem. His huge clock stood 40 feet high and was powered by a special water wheel. Buckets around its rim were filled, one at a time, by a steady flow of water. When each bucket was heavy enough to trip a mechanism, it fell forward -- carrying the bucket behind it into place under the water spout. And the process repeated.

6. How To Measure Water Clocks • There are approximately two types of water clocks in term of how time is measured. One is a holed container filled with water that measures the time by dripping the water outside. It's called "dripping water clock". The other is a container (with no holes at the bottom) that measures the time by letting water drip inside. It's called "filling water clock".