Education The History of Scales

The History of Scales The History of Scales If you were to travel back in time and show an ancient street merchant a digital weighing scale, he would have no idea what to…

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ENERGY, QUANTA, AND VISION* BY SELIG HECHT, SIMON SHLAER, AND MAURICE HENRI PIRENNE$ (From the Laboratory of Biopkysics, Columbia University, New York) (Received for publication,…