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Clock

Any instrument other than a watch for measuring or indicating time, especially a mechanical or electronic device having a numbered dial and moving hands or a digital display.

Contributors in Clock

Clock

reverse painting

Chronometry; Clock

A picture or design often used on a clock tablet and painted on the back side of a glass in reverse order of a normal painting.

reverse fusee

Chronometry; Clock

The reaction of engagement of the great wheel with its pinion is transmitted to its pivot and, in the usual layout, the pull of the fusee line adds to this load. In the alternative layout, the chain ...

rete

Chronometry; Clock

The rotatable circular star map of an astrolabe, in the form of a network of pierced and engraved metal.

frosting

Chronometry; Clock

The granular or matted finish given to the surface of brass clock parts prior to gilding. It is produced by dipping the parts briefly into a concentrated mixture of nitric and hydrochloric acid, ...

front wind

Chronometry; Clock

A clock that is wound through an opening in the dial.

free pendulum

Chronometry; Clock

It has been known for a long time that a 'free' pendulum clock will achieve perfect timekeeping. A pendulum, to achieve this, would maintain its arc and do no work, without ever receiving impulse - ...

Franklin clock

Chronometry; Clock

During visits to London in the late 18th century, Benjamin Franklin became friendly with James Ferguson, the famous astronomer and designer of orreries and astronomical clocks. Few of Ferguson's ...

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