Ads
related to: how to make a working clock
Search results
Results From The WOW.Com Content Network
A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. The advantage of a pendulum for timekeeping is that it is an approximate harmonic oscillator: It swings back and forth in a precise time interval dependent on its length, and resists swinging at other rates.
An analog pendulum clock made around 18th century. A clock or chronometer is a device that measures and displays time.The clock is one of the oldest human inventions, meeting the need to measure intervals of time shorter than the natural units such as the day, the lunar month, and the year.
A qualified clockmaker can typically design and make a missing piece for a clock without access to the original component. Clockmakers generally do not work on watches ; the skills and tools required are different enough that watchmaking is a separate field, handled by another specialist, the watchmaker .
Harrison then went on to design and make two other sea clocks, "H2" (completed in around 1739) and "H3", both of which were ready by 1755. [155] [156] Harrison made two watches, "H4" and "H5". Eric Bruton, in his book The History of Clocks and Watches, has described H4 as "probably the most remarkable timekeeper ever made". [157]
The working up of employees' time then becomes simply a matter of computation from printed figures. These two types are made by the International Time Recording Co. of New York. [13] An example of this other form of time clock, made by IBM, is pictured. The face shows employee numbers which would be dialed up by employees entering and leaving ...
A torsion pendulum clock, more commonly known as an anniversary clock or 400-day clock, is a mechanical clock which keeps time with a mechanism called a torsion pendulum. This is a weighted disk or wheel, often a decorative wheel with three or four chrome balls on ornate spokes, suspended by a thin wire or ribbon called a torsion spring (also ...