CAN any of your readers help me as to the original definition of the familiar term “pinacoid”? I suspect that it was introduced by C. F. Naumann about 1830; it was derived from πirαε;, a slab, and ...
IT has been shown by Herr Laue and his colleagues that the diffraction patterns which they obtain with X-rays and crystals are naturally explained by assuming the existence of very short ...
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