Chronometer, a timepiece that is exceptionally accurate. Traditionally, the term refers to the marine chronometer, a rugged mechanical instrument used at sea to keep time for navigational purposes. By measuring the position of a celestial body (with a device called a sextant), and by knowing the exact time of the measurement, a navigator can determine a ship's longitude from published tables. The typical marine chronometer is mounted on suspension devices called gimbals to keep it in a horizontal position and to reduce the effect of vibrations from the ship.
You Might Also Like
The big bang theory is well-known, but there are many misconceptions about it. Like what? Let's start with this one: There was no bang.
One was a celebrated author, the other a famed physicist. What the two shared was a public exposure of their religious beliefs. Big E had an on-again, off-again relationship with God, while C.S. was an avowed atheist during his early years.