. Dental and oral radiography; a textbook for students and practitioners of dentistry . Fig. 1.—William Conrad Roentgen. of AViirzbnrg, in Germany. This discovery, marking asit did, a distinct epoch in the science of medicine, was re-ceived by the world with incredulity and amazement, for NATURE or X-RAY AND ITS DISCOVERY 25 its reported possibilities savored almost of the new ray had been discovered by means of which itwas possible to look through opaque substances. While it fell to the lot of Professor Eoentgen to makethis discovery, there is no doubt but that other experi-menters i
. Dental and oral radiography; a textbook for students and practitioners of dentistry . Fig. 1.—William Conrad Roentgen. of AViirzbnrg, in Germany. This discovery, marking asit did, a distinct epoch in the science of medicine, was re-ceived by the world with incredulity and amazement, for NATURE or X-RAY AND ITS DISCOVERY 25 its reported possibilities savored almost of the new ray had been discovered by means of which itwas possible to look through opaque substances. While it fell to the lot of Professor Eoentgen to makethis discovery, there is no doubt but that other experi-menters in the field of physics, unconsciously producedthis same ray. In fact, its discovery was made possibleby the work of other scientists who preceded Roentgenand laid the foundation for its Fig. 2.—Michael Faraday. Of these, Michael Faraday was the pioneer. In 1831he discovered electric magnetic induction, which madepossible the induction coil and the other electric machines 26 DENTAL AND ORAL RADIOGRAPHY utilized to generate currents of great potential. As earlyas 1838 he conducted a series of experiments to deter-mine the effect of electric discharges upon rarified gases,and invented the terms anode and cathode forpositive and negative electrodes. In 1857 Geisgler constructed Jhe Jirst vacuum tubesand it was noted at this time that an electric dischargepassed through these tubes would produce a peculiar ■iS^APiiSBT-^^ =;.=.
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectradiogr, bookyear1919
