log
In mathematics, abbreviation for logarithm.
log
| Any apparatus for measuring the speed of a ship; also the daily record of events on board a ship or aircraft. |
| The log originally consisted of a piece of weighted wood attached to a line with knots at equal intervals that was cast from the rear of a ship. The vessel's speed was estimated by timing the passage of the knots with a sandglass (like an egg timer). Today logs use electromagnetism and sonar. |
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