Kaye, G. W. C. (George William Clarkson), 1880-1941 · London, New York [etc.] Longman's Green, and Co. · leaf 58
lectric bell, and so alternately makes and breaks theprimary current.-^ An extended accoimt of the induction coil is given orp. 53 et seq. In a modem X-ray coil the hammeT-break is rarely fitted, but terminalsare provided for connecting up to an independent mercury or other typeof break. CHAPTER… … Fia. 14.—Type of tube with which Eontgen discovered X rays. The cathoderays impinged on the broad end of the tube. end ; the anode was in a small side tube (Fig. 14).^ Thecathode rays impinged on the large end of the bulb, pro-ducing vivid fluorescence. This pattern of tube was widelycopied, but it…
X-rays
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