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Rutherfordium is a chemical element with symbol Rf and atomic number 104, named in honor of physicist Ernest Rutherford.
By Mark Roberti. Itâs generally said that the roots of radio frequency identification technology can be traced back to World War II. The Germans, Japanese, Americans and British were all using radarâwhich had been discovered in 1935 by Scottish physicist Sir Robert Alexander Watson-Wattâto warn of approaching planes while they were still miles away.