WORLDKINGS - On This Day - October 04, 2018 - Christian Huygens patented a pocket watch in 1675

04-10-2018

(Worldkings.org) On the 4 October, in 1675, Christian Huygens patented a pocket watch. Huygens was a Dutch astronomer and physicist who established the wave theory of light and made astronomical discoveries.

 

 

He also patented the first pendulum clock in 1656, which he had developed to meet his need for exact time measurement while observing the heavens. In 1673, he studied the relation of the length of a pendulum to its period of osciallation.

 

 

According to todayins

 

 


Van Nguyen (collect ) - WORLD RECORDS UNION - WORLDKINGS ( source of photo : internet )

 

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