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Fire versus Atomic Energy
More Complex Atoms
26 other sections not shown
action airplane alternating current Ampere antenna atom bomb atomic weight automobile battery blades bombard broadcasting bump called camera carbon carrier waves cause chain-reacting pile Chapter chemical coil combustion crankpin diaphragm discoveries Edison elec electrical current electrical impulses electricity flows electromagnetic waves electron gun electron stream electron tube electrons move energy engine cylinder filament film fire fuel gasoline vapor gine glider grid heat hydrogen iconoscope ignited internal-combustion engine invented iron lens light low-pressure areas magnetism metal microphone molecules motion move back needle neutrons nucleus number of electrons orbit particles photographic phototube picture plane plate pressure produce protons push radar radio waves reaction engine receiver record retina rocket rods and cones rotor scientists screen shaft signal silver bromide sound track spark speed split steam engine strong substance telephone television tiny tion transmitter tricity trons turbine turn uranium valve vapor and air varying vibrate voltage wing wire