key of a clock
31key — 1. n. & v. n. (pl. keys) 1 an instrument, usu. of metal, for moving the bolt of a lock forwards or backwards to lock or unlock. 2 a similar implement for operating a switch in the form of a lock. 3 an instrument for grasping screws, pegs, nuts,… …
32Time clock — Early 20th century time clock made by IBM. The face shows employee numbers which would be dialed up by employees entering and leaving the factory. The day and time of entry and exit was punched onto cards inside the box A time clock, sometimes… …
33Pendulum clock — A pendulum clock is a clock that uses a pendulum, a swinging weight, as its timekeeping element. From its invention in 1656 by Christiaan Huygens until the 1930s, the pendulum clock was the world s most accurate timekeeper, accounting for its… …
34Rock Around the Clock — For the movie named after the song, see Rock Around the Clock (film). For the 1955 record album by Haley, see Rock Around the Clock (album). Infobox Single| Name = Rock Around the Clock Artist = Bill Haley His Comets Nofrom Album = yes B side =… …
35Town Clock (Dubuque) — Town Clock Building U.S. National Register of Historic Places …
36Longcase clock — The article Grandfather clock redirects here. For other uses, see Grandfather clock (disambiguation) A longcase clock with a pine case, c. 1790, by Thomas Ross of Hull. The two keyholes on either side of the dial show this to be an eight day… …
37Molecular clock — Part of a series on Evolutionary Biology …
38Torsion pendulum clock — A torsion pendulum clock, or torsion clock, is a mechanical clock which keeps time with a mechanism called a torsion pendulum. This is a weighted disk or wheel, often a decorative wheel with 3 or 4 chrome balls on ornate spokes, suspended by a… …
3910 O'Clock Live — title screen Format Current affairs Comedy Satire Presented by Charlie Brooker …
40Radical clock — In chemistry, a radical clock is a compound that assists in the indirect methodology to determine the kinetics of radical molecule reactions. This involves a unimolecular radical reaction with a known rate constant competing against a bimolecular …
