Chronometry

Chronometry

The science of the measurement of time.

2Categories 13194Terms

Add a new term

Contributors in Chronometry

Become a Contributors

Chronometry > Clock

postman's alarm

Chronometry; Clock

The Black Forest industry was hard hit by American competition in the years 1842-60 and in the 1860s began to make clocks on the American pattern in factories. The old type of ...

position clock

Chronometry; Clock

Also called a regulator clock.

portico clock

Chronometry; Clock

A portico is a classical porch with a decorated entablature supported on columns, and often completed by a triangular pediment. On modern buildings in classical style, the ...

porcelain case

Chronometry; Clock

Porcelain is a hard translucent material of which an important ingredient is china clay (kaolin), with various other materials added according to type, and fired to a high ...

polyhedral sundial

Chronometry; Clock

Providing that the style, or shadow-casting edge, of a sundial is parallel to the Earth's axis, hour lines can be drawn on any surface on which the sun shines. This allows the ...

polishing muller, or stake

Chronometry; Clock

A block of steel with a flat polished surface on which a polishing medium such as rouge is mixed with oil. It is usually contained in a wooden box to keep out dust and grit.

polishing mills, or laps

Chronometry; Clock

Tools with a revolving disc charged with a polishing compound. These are of various designs, some being made for the specific purpose fo polishing one type of componenet. ...