George Washington was just a teen-ager with little more experience than surveying his brother’s turnip patch when he got a job helping map thousands of acres in western Virginia for the powerful Lord ...

For many centuries, the principle of triangulation - that is the geometric measurement using three-point relationships - has been relatively well known. In Europe, the land survey method established ...

Tell us a bit about green beam lasers. How are they different? Red beam line lasers have been standard on the jobsite for years, but newer green beam lasers are up to four times brighter than red ...