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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 ...
Animation of anchor escapement, widely used in pendulum clocks. An escapement is a mechanical linkage in mechanical watches and clocks that gives impulses to the timekeeping element and periodically releases the gear train to move forward, advancing the clock's hands.
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Scientists in the 1800s found that the gridiron pendulum had disadvantages that made it unsuitable for the highest-precision clocks. [4] The friction of the rods sliding in the holes in the frame caused the rods to adjust to temperature changes in a series of tiny jumps, rather than with a smooth motion.
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In 1851 the Ansonia Clock Company was formed [2] as a subsidiary of the Ansonia Brass Company by Phelps and two Bristol, Connecticut, clockmakers, Theodore Terry and Franklin C. Andrews. Terry & Andrews were the largest clock manufacturers in Bristol, with more than 50 employees using 58 tons of brass in the production of about 25,000 clocks in ...
The make command uses the clock of the machine it runs on to determine which source files need to be recompiled. If the sources reside on a separate file server and the two machines have unsynchronized clocks, the make program might not produce the correct results. [3] Synchronization is required for accurate reproduction of streaming media.