More than 130 years after its installation atop the Cambridge City Hall, a mechanical tower clock — wound by hand each week — continues to chime. Crimson photographers followed David W. Graf, the ...
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The Alibi Clock, a 20-foot-tall Vallejo landmark for about 90 years, is working again thanks to two San Francisco experts who restored the clock’s intricate mechanism and a city maintenance worker who ...
The tick-tick sound comes from the movement of gears and parts inside the clock. In mechanical clocks, a part called the escapement mechanism controls this sound.
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