Magnetic separation systems began appearing in scrap yards after World War II when heavy duty shredders used for grinding automobiles started to pop up across the United States. The early magnetic ...
By Richard Gray and Richardgray 14 August 2013 • 11:54pm SGR 0418+5729, is 6,500 light years from Earth and was initially thought to have an unusually low magnetic field. The former star, which has ...
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