Main Page | See live article | Alphabetical index A log is: a cut portion of a tree bole or large branch (see logging) a time-sequential data record (see data logging) logarithm a device to measure the speed of a ship This is a disambiguation page; that is, one that just points to other pages that might otherwise have the same name. If you followed a link here, you might want to go back and fix that link to point to the appropriate specific page. This article is from Wikipedia. All text is available under the terms of the GNU Free Documentation License.