Units of energy Units of energy Because energy is defined via work, the SI unit for energy is the same as the unit of work – the joule (J), named in honor of James Prescott Joule and his experiments on the mechanical equivalent of heat. In slightly more fundamental terms, 1 joule is equal to 1 newton metre and, in terms of SI base units An energy unit that is used in atomic physics, particle physics and high energy physics is the electronvolt (eV). One eV is equivalent to 1.60217653×10 J. In spectroscopy the unit cm = 0.000123986 eV is used to represent
Scientific Atlanta of home security and energy management during the 1970s. The company marketed wireless home alarm systems and provided equipment to utilities that enabled them to monitor home energy use. By the dawn of the 1980s, Scientific Atlanta had become the world's largest supplier of satellite earth stations. In February 2003, Scientific-Atlanta introduced their first Explorer HD set-top box, which is capable of displaying HDTV programming, at Best Buy stores in the Phoenix metropolitan area. It was later rolled out nationwide. In March 2004, Scientific-Atlanta launched the Explorer 8000HD, their first set-top box with both DVR and HD. In the set-top