Modern electricity and magnetism, theoretically and practically considered (1885)
Avery, Elroy M[cKendree], 1844- [from old catalog] · New York and Chicago, Sheldon and company · leaf 81
ctric machine or aninduction coil (§ 459). 250 FRICTIOKAL ELEOTUtClTY. Experiment 7l.~In Crookess Tubes/ devised in many formsby Prof. Crookes for his investigations of the phenomena of radiantmatter (§ 59 6), the tension of tlie contained gas is reduced to aboutone millionth of an atmosphere, far… … Fig. 177. («.) One of these tubes, used to show that *■ radiant matter mayexert mechanical action, is shown in Fig. 177. It consists of a highlyexhausted glass tube containing a glass railway. The axle of asmall wheel revolves on the rails, the spokes of the wheels carrying
Electricity · Magnetism
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