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Chronometry
The science of the measurement of time.
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Chronometry > Clock 
pipe
Chronometry; Clock
Any extended hollow boss, as in a key. The key-pipe is the hollow squared part which fits the winding arbor.
nutation
Chronometry; Clock
A small oscillation of the Earth's axis of rotation about its mean position, due to the moon's attraction on the Earth's equatorial bulge, superimposed on the slow rotation of the ...
nut
Chronometry; Clock
The threaded metal block used to secure components with the aid of a screw. By the middle of the 16th century screws had begun to be used by clockmakers and they have been used ...
Nuremberg hours
Chronometry; Clock
During the late 16th and 17th centuries a special system of hour reckoning was employed in the Nuremberg area differing from that of the rest of Europe. It used equal hours, but ...
novelty clock
Chronometry; Clock
A small, often animated clock, usually in the shape of a familiar object.
normande clock
Chronometry; Clock
A French provincial longcase clock, from Normandy. The clock industry in this area was established in the 17th century. Centers such as Pontfarcy were making 30-hour clocks with ...
nocturnal
Chronometry; Clock
An instrument for finding the time by night from the position of the two 'pointers' of the Great Bear or Little Bear constellations. It consists of a wooden or metal disc with a ...
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