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First Clock
The first mechanical clocks, employing the verge escapement mechanism with a foliot or balance wheel timekeeper, were invented in Europe at around the start of the 14th century, and became the standard timekeeping device until the pendulum clock was invented in 1656. -
Second Clock
Christiaan Huygens, however, is usually credited as the inventor. He determined the mathematical formula that related pendulum length to time (99.38 cm or 39.13 inches for the one second movement) and had the first pendulum-driven clock made -
Fourth Clock
The clock is one of the oldest human inventions, meeting the need to consistently measure intervals of time shorter than the natural units: the day, the lunar month, and the year. Devices operating on several physical processes have been used over the millennia. A sundial shows the time by displaying the position of a shadow on a flat surface -
Fifth Clock
The builders of the Fifth Avenue Building that replaced the hotel at 200 Fifth Avenue wasted no time in erecting a new clock. In the busy neighborhood anchored by the relatively new Flatiron Building across 23rd Street to the south, a street clock was considered essential. -
Third Clock
The current, third clock dates from 1843. Its main features, besides the automata, are a perpetual calendar (including a computus), an orrery (planetary dial), a display of the real position of the Sun and the Moon, and solar and lunar eclipses. -
Fourth Clock
A digital clock is a type of clock that displays the time digitally as opposed to an analog clock, where the time is indicated by the positions of rotating hands. Digital clocks are often associated with electronic drives, but the "digital" description .... Zeon Ltd. Retrieved 2015-11-07. Jump up ^ "Stopped Clock". TV Tropes -
Fifth Clock
A clock is an instrument to indicate, keep, and co-ordinate time. The word clock is derived .... (August 2016) ... They no longer exist, but detailed descriptions of their design and construction survive, and modern reproductions have been made
