science%20and%20technology

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• Swimfin — Swimfins, swim fins, fins or flippers are finlike rubber or plastic shoes worn over the foot to aid movement through the water in water sports activities such as swimming, bodyboarding, bodysurfing, kneeboarding, riverboarding, and various types… …   Wikipedia

• Drug Enforcement Administration — DEA redirects here. For other uses, see DEA (disambiguation). Drug Enforcement Administration Abbreviation DEA …   Wikipedia

• Focus-plus-context screen — The original focus plus context screen prototype consisted of an 18 LCD screen embedded in a 5 front projected screen. The callout shows the different resolutions of focus and context area. A focus plus context screen is a specialized type of… …   Wikipedia

• Oil shale extraction — is an industrial process in which kerogen mdash;a mixture of organic chemical compounds (including hydrocarbons) found in oil shale mdash;is converted into synthetic crude oil through pyrolysis. In pyrolysis, oil shale is heated in the absence of …   Wikipedia

• Washington High School (Atlanta) — Booker T. Washington Comprehensive High School, named for the famous educator, opened in September 1924 under the auspices of the Atlanta Board of Education, with the late Charles Lincoln Harper as principal. As the first public high school for… …   Wikipedia