symmetrical experiment
121Chicago White Sox — White Sox redirects here. For other uses, see White Sox (disambiguation). Chicago White Sox 2012 Chicago White Sox season Established 1894 Based in Chicago since 1900 …
122Global Positioning System — GPS redirects here. For other uses, see GPS (disambiguation). Geodesy Fundamentals …
123Henri Bergson — Infobox Philosopher region = Western Philosophy era = 19th century philosophy color = #B0C4DE image caption = Portrait of Henri Bergson by J.E. Blanche 1891 name = Henri Louis Bergson birth = 1859 October 18 (Paris, France) death = 1941 January 4 …
124Infrared spectroscopy — (IR spectroscopy) is the subset of spectroscopy that deals with the infrared region of the electromagnetic spectrum. It covers a range of techniques, the most common being a form of absorption spectroscopy. As with all spectroscopic techniques,… …
125Longship — The Gokstad ship, on display at the Viking Ship Museum in Oslo, Norway. Longships were sea vessels made and used by the Vikings from the Nordic countries for trade, commerce, exploration, and warfare during the Viking Age. The longship’s design… …
126Mutagen — In genetics, a mutagen (Latin, literally origin of change) is a physical or chemical agent that changes the genetic material, usually DNA, of an organism and thus increases the frequency of mutations above the natural background level. As many… …
127Quantum field theory — In quantum field theory (QFT) the forces between particles are mediated by other particles. For instance, the electromagnetic force between two electrons is caused by an exchange of photons. But quantum field theory applies to all fundamental… …
128Skateboarding — is the act of riding and performing tricks using a skateboard. A person who skateboards is most often referred to a skateboarder or a skater.Skateboarding can be a recreational activity, an artform, a job, or a method of transportation. [cite web …
