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Chronometry
The science of the measurement of time.
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Chronometry > Clock 
enamelled dial
Chronometry; Clock
White enameled dials were first introduced in England in the 1740s for watches, and for bracket clocks later in the 18th century. Enamel dials were more legible than the engraved ...
empire clock
Chronometry; Clock
The term 'American empire' applied to furnishings describes the style of c. 1825-40, which followed the Federal and preceded the Victorian. In clocks, this includes such types as ...
emery wheel
Chronometry; Clock
A disc or wheel of artificial stone for grinding by machine. It is composed of emery grit bonded together, of even texture in various grades of fineness, and in various shapes and ...
ellicott pendulum
Chronometry; Clock
Temperature errors, caused by expansion of the pendulum rod in heat slowing the clock's rate, led John Ellicott, probably after seeing John Harrison's gridiron compensation, to ...
eight-day train
Chronometry; Clock
The timekeeping trains of clocks are designed to go for a little longer than the period required between windings. A clock designed to be wound weekly will go for eight days ...
ecliptic
Chronometry; Clock
The plane of the Earth's orbit around the sun, passing through the center of the sun. Viewed from the Earth it is the apparent track of the sun throughout the year between the ...
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