The 12-hour clock is a way of dividing the 24 hours of the day into two sections. The two halves are called ante meridiem (a.m.) and post meridiem (p.m.).. Both names ...

The foot is a unit for measuring length.It is one of the Imperial units and U.S. customary units. The shortest way of writing the unit "foot" is by the abbreviation "ft" (or "ft."), or by a prime symbol ( ′ ).. One foot contains 12 inches.This is equal to 30.48 centimetres.It is called a foot, because it was originally based on the length of a foot. ...