Pendulum / pendulum clock

www.dailymotion.com/video/x7v3om8

Comments

Dinesh ^club

Galileo believed that he had shown that pendulum tell perfect time, and devised a pendulum clock (though he did not build it; by the time he turned his attention to the question he was blind, and his son, who tried to help hi, lacked the necessary manual skills). Huygens, without knowing of Galileo’s work, went on to build the first pendulum clock (1656) and to refine the law of the pendulum (1673). Meanwhile, Robert Hooke, Huygens and Jean de Hautefeuille devised between 1658 and 1674 ways of controlling a balanced wheel (which had been invented in 1764 ways of controlling a balance wheel (which had been invented in the fourteenth century, and was more stable than a pendulum for a travelling timepiece) with a spring so that the small clocks and watches would tell time reliably. Still, the task of making a seagoing clock or watch was far from resolved: such a timepiece had to remain accurate despite changes in temperature and humidity, and despite the movement of the waves. The problem was not solved until John Harrison produced the first reliable marine chronometer in 1735. Were the discovers of Galileo, Hooke and Huygens irrelevant? Certainly not, but they were insufficient. It took more than a century to solve the problem, but in the course of that century steady progress was made towards a solution.

2 years ago. Edited 2 years ago.

Sign-in to write a comment.

		Page color
		Comments Panel
		Screen Margins
▼▲
		Widescreen

← Among Dinesh's photos

See also...

Filters / photo making Filters / photo making

Keywords

Authorizations, license

Pendulum / pendulum clock

Ξ	Frame Options
3 - +