History dating platform clock escapement
However, it has practical limitations - it requires the sun to shine and does not work at all during the night - encouraged the use of other techniques for measuring time.In India, the King of Jaipur the Pink City, Jai Singh II constructed many instruments and sundials in the observatories in cities Jaipur, Varanasi, Ujjain, Mathura between 1724-1730 A. He had a good interest in astronomy and town planning.The bowl-shaped outflow is the simplest form of a water clock and is known to have existed in Babylon and in Egypt around the 16th century BC.Other regions of the world, including India and China, also have early evidence of water clocks, but the earliest dates are less certain.
The word clock is derived ultimately (via Dutch, Northern French, and Medieval Latin) from the Celtic words clagan and clocca meaning "bell".
These advances were passed on through Byzantium and Islamic times, eventually making their way to Europe.
Independently, the Chinese developed their own advanced water clocks, passing their ideas on to Korea and Japan.
Some authors, however, write about water clocks appearing as early as 4000 BC in these regions of the world.
which was connected to fanciful automata and also resulted in improved accuracy.
For example, there is a record that in 1176 Sens Cathedral installed a ‘horologe’ but the mechanism used is unknown.