two for two
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Two and a Half Men — Genre Sitcom Created by Chuck Lorre Lee Aronsohn … Wikipedia
Two-point conversion — For the rugby football scoring attempt after a try, see Try#Conversion. In American and Canadian football, a two point conversion is a play a team attempts instead of kicking a one point convert immediately after it scores a touchdown. In a two… … Wikipedia
Two-factor authentication — (TFA, T FA or 2FA) is an approach to authentication which requires the presentation of two different kinds of evidence that someone is who they say they are. It is a part of the broader family of multi factor authentication, which is a defense in … Wikipedia
Two-photon absorption — (TPA) is the simultaneous absorption of two photons of identical or different frequencies in order to excite a molecule from one state (usually the ground state) to a higher energy electronic state. The energy difference between the involved… … Wikipedia
Two Rivers, Wisconsin — Two Rivers is a city in Manitowoc County, Wisconsin, United States. The population was 12,639 at the 2000 census. The city is located mostly within the Town of Two Rivers. A small portion extends west into the adjacent Town of Manitowoc. It is… … Wikipedia
Two-Edge — is one of the main antagonists in the comic book series Elfquest . Two Edge is an at least half mad, but ingenious inventor and schemer. This character was created by Wendy and Richard Pini. Twisted by his mother and pining over the loss of his… … Wikipedia
Two-photon excitation microscopy — is a fluorescence imaging technique that allows imaging of living tissue up to a very high depth, that is up to about one millimeter. Being a special variant of the multiphoton fluorescence microscope, it uses red shifted excitation light which… … Wikipedia
Two-body problem — Two bodies with similar mass orbiting around a common barycenter with elliptic orbits. In classical mechanics, the two body problem is to determine the motion of two point particles that interact only with each other. Common examples include a… … Wikipedia
Two-phase electric power — Two phase electrical power was an early 20th century polyphase alternating current electric power distribution system. Two circuits were used, with voltage phases differing by 90 degrees. Usually circuits used four wires, two for each phase. Less … Wikipedia
Two-dimensional gel electrophoresis — Two dimensional gel electrophoresis, abbreviated as 2 DE or 2 D electrophoresis, is a form of gel electrophoresis commonly used to analyze proteins. Mixtures of proteins are separated by two properties in two dimensions on 2D gels.Basis for… … Wikipedia
Two-tier health care — is a form of national health care systemFact|date=March 2008. It is a system in which a guaranteed public health care system exists, but where a private system operates in parallel competition. The private system provides the opportunity for… … Wikipedia
