Archive for February 17th, 2011

Day 17 Clarence L. Elder – 28 days of Black History in Technology

Clarence L. Elder was born in 1935 he graduated from Morgan State College. In 1967 he was awarded a patent for a monitoring and energy conservation control system. That system reduced energy use in vacant homes and buildings.  This was very useful for hotels and school rooms.  The system used an electronic beam aimed across […]

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