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As more power stations adopted the clocks, the frequency regulation allowed them to share electricity and create an interconnected powergrid. And Warren, who eventually solved the grid-frequency problem, was actually working on a different puzzle when he came across the answer. regulated over 95 percent of all U.S.
A jet-setting career After receiving his bachelor’s degree in power engineering in 1948 from Pennsylvania State University in University Park, Hissey joined Leeds and Northrup (L&N) in Philadelphia as an applications engineer. The company made electrical measurement instruments and control and power systems.
where he worked on field-effect transistors and integrated circuits, using a six-transistor memory cell for each bit of data, the standard at the time. By the early 1970s, DRAM was standard in virtually all computers. He specialized in power systems analysis. at the University of Pennsylvania , in Philadelphia.
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