Chronometry

Chronometry

The science of the measurement of time.

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Chronometry > Clock

mercurial pendulum

Chronometry; Clock

George Graham, with his mercurial compensation pendulum, preceded John Harrison by a few years in solving the problem of temperature error caused by the expansion or contraction ...

medallion

Chronometry; Clock

An applied circular, oval, or square decorative turning used on a clock case.

mean time

Chronometry; Clock

When all hours and days are of equal time. The average over a whole year of a solar day is termed a 'mean solar day', and a timekeeper divides this as accurately as possible into ...

matting

Chronometry; Clock

The granular finish given to the center of a brass clock dial, or a type of finish for clock parts. The effect is produced by punching the matted center dial all over with a ...

master clock

Chronometry; Clock

All time distribution systems must have an accurate controlling clock. Carl August Steinheil, who first applied electricity to time distribution, used the term 'central' clock; ...

massachusetts shelf clock

Chronometry; Clock

A style of clock frequently called half-clock or box-on-box. The upper portion with dial rested on feet on a separate lower section which contained the pendulum. A similar design ...