Chronometry

Chronometry

The science of the measurement of time.

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Chronometry > Clock

torsion clock

Chronometry; Clock

The name is derived from the use of a torsion pendulum, which consists of a heavy bob suspended by a thin strip of metal or wire, having the property of combining a long period of ...

tooth

Chronometry; Clock

The shaped projections on a gear wheel which intermesh and transmit power are termed 'teeth'.

ting-tang striking

Chronometry; Clock

A clock striking the quarters on two differently pitched bells or gongs, the sound for the first quarter being similar to the name, with each successive quarter indicated by an ...

timetrain

Chronometry; Clock

The series of gears in the clock movement that operates the minute and hour hands (and second hand where applicable). The timetrain is responsible for activating the chime in the ...

time-switch clock

Chronometry; Clock

Originally developed for switching shop-window display or street lighting on an automatic program. Similar clocks had earlier been used for controlling gas lamps by turning a gas ...

timepiece

Chronometry; Clock

A clock that tells time only and does not strike or chime.

time-annunciation

Chronometry; Clock

For the best results of time measurements to be useful they had formerly to be announced by voice or other audible or visible signal. Parallel with the development of automatic ...