Things a Boy Should Know About Electricity: Second EditionSt. John, Thomas M. (Thomas Matthew)
Science
Things a Boy Should Know About Electricity: Second Edition
St. John, Thomas M. (Thomas Matthew)
Electricity
Switches, Chap. V.;
knife, 62;
pole-changing, 62;
single point, 62;
for trolley lines, 167.
Table clamp-push, 61.
Tangent galvanometer, 73.
Teakettles, electric, 147.
Telegraph, electric, and how it sends messages, Chap. XIV.;
ink writing registers, 114;
keys, 109;
relay, 113;
sounders, 110.
Telegraph line, 107, 108;
operation of, 112;
simple connections of, 111.
Telephone, the, and how it transmits speech, Chap. XVI.;
receiver, 121;
transmitter, 120;
use of induction coil with, 124;
various forms of, 125.
Temporary magnetism, 36.
Terrestrial magnetism, 40.
Theory of magnetism, 33.
Thermoelectricity, 88.
Thermopiles, 90.
Three-wire system, 144.
Throat, lamp for, 151.
Thunder, 20.
Toepler-Holtz machines, 11.
Transformers, 135.
Transforming electric current, Chap. XVIII.;
for electric welding, 146.
Transmission of currents, 134.
Transmitter, Bell, 120;
carbon, 123.
Trembling bell, 116.
Trolley-wires, 164;
-poles, 164;
-wheels, 164.
Tubes, Crookes, 156, 158;
Geissler, 156;
vacuum, 156.
Two-fluid cells, 49.
Two-wire system, 144.
Underground trolley system 166;
conduits for, 166.
Unit, of current strength, 72;
of electromotive force, 66;
of quantity, 76;
of resistance, 69.
Units, electrical, Chap. VI.
Uses, of armatures, 39;
of electricity, miscellaneous, Chap. XXVII.;
of induction coils, 106;
of motors, 162;
of storage batteries, 87.
Vacuum-tubes, 156.
Variation, angle of, 41.
Volt, the, 66.
Volta, 66;
early experiments of, 44.
Voltaic cell, electricity generated by, Chap. III.
Voltaic pile, 44.
Voltameters, 75;
copper, 75;
water, 75.
Voltmeters, 67, 77.
Water, decomposition of, 79;
power, source of energy, 170;
voltameters, 73.
Watt, the, 77.
Wattmeters, 77.
Welding, electric, 146.
Wimshurst electric machine, 12.
Wires and cables, 143.
Wiring, for alternating system, 144;
three-wire system, 144;
two-wire system, 144.
Work, and electric current, 133.
X-ray photographs, 159.
X-rays, 156;
and how the bones of the human body are photographed, Chap. XXIII.
Yokes, 97, 98.
Zincs, amalgamation of, 47.
THINGS A BOY SHOULD KNOW ABOUT ELECTRICITY.
By THOMAS M. ST. JOHN, Met. E.
The book contains 180 pages, and 260 illustrations; it measures
5 x 7½ in., and is bound in cloth.
PRICE, POST-PAID, $1.00.
Public-domain text, read in full here on John Shaqi.
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