User:Ldm1954/Hist
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DeletedDeleted== Historical Background == The historical background to electron diffraction involves several interweaving threads which sometimes merged, but also diverged. The first is the general background to electrons in vacuum and the technological developments that led to cathode-ray tubes as well as vacuum tubes that dominated early television and electronics; the second is how these led to the development of electron microscopes; the last is work on the nature of electron beams and the fundamentals of how electrons behave, a key component of quantum mechanics and the explanation of electron diffraction.