Practical radiography : a handbook for physicians, surgeons, and other users of X-rays (1901)
Isenthal, A. W, Ward, H. Snowden (Henry Snowden), 1865-1911 · London : Published for The Photogram, Ltd. by Dawbarn and Ward, Ltd. · leaf 60
pter ;this may be effected in various ways. Either the spark isblown away by means of an air-blast (mostly used inAmerica), or the energy represented by the spark isdeflected into a condenser, of large capacity (Fizeausmethod), the two coatings of which are connected to thetwo contact points of the… … < Induction Coils and Interrupters 49 primary current, quickly destroys the core-magnetism, andstill further reduces the induced E.M.F. of the closingcurrent. One other point which must be attended to is thenecessity that the iron core quickly follows the magneticchanges to which the primary…
Radiography · X-rays
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