X-ray diffraction methods lie at the foundation of materials science. Determination of the crystal structures of natural minerals and, later, of crystals grown in the laboratory led to our ...

IF a fine beam of homogeneous cathode rays is sent nearly normally through a thin celluloid film (of the order 3 × 10 6 cm. thick) and then received on a photographic plate 10 cm. away and parallel to ...

He didn't win the White House. He didn't even win his own party's nomination. But in 1968 Eugene McCarthy revealed major divisions among Democrats, changing the political landscape in a way few ...

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