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alternating current ammeter ampere ampere-turns apparatus applied arc lamp armature boiler cable capacity carbon cent central station circuit breakers coal coil compressor condenser conductor connected copper core loss corona cost curve dielectric direct current efficiency Electric Company electrode energy engine equipment excitation factor farm field flame arc flux full load heat run hoist inch increased induction motor installed insulation kilowatt light lightning arrester located luminous arc machine machinery magnetic magnetomotive force manufacture maximum boost mechanical ment meter method mill motor-generator obtained operation overload ozone phase plant poles position potential power house power-factor pressure primary pumps reactance regulator relays resistance result secondary shaft short-circuit shown in Fig single-phase speed steam supply switch switchboard synchronous condenser synchronous motor temperature three-phase tion torque transformers transmission turbine voltage volts wattmeter watts winding wires
Halaman 291 - And yet don't look too good, nor talk too wise. If you can dream — and not make dreams your master; If you can think — and not make thoughts your aim. If you can meet with Triumph and Disaster And treat those two impostors just the same. If you can bear to hear the truth you've spoken Twisted by knaves to make a trap for fools, Or watch the things you give your life to, broken, And stoop and build 'em up with worn-out tools.
Halaman 150 - Just below the falls is a little island in the middle of the river well covered with timber. Here on a cottonwood tree an eagle had fixed its nest, and seemed the undisputed mistress of a spot, to contest whose dominion neither man nor beast would venture across the gulfs that surround it, and which is further secured by the mist rising from the falls. This solitary bird could not escape the observation of the Indians who made the eagle's nest a part of their description of the falls...
Halaman 149 - Lewis had gone about two miles when his ears were saluted with the agreeable sound of a fall of water, and as he advanced a spray, which seemed driven by the high southwest wind, arose above the plain like a column of smoke and vanished in an instant. Towards this point...
Halaman 182 - By special assignment to the whole problem of a portion of the force of the Office of Public Roads of the United States Department of Agriculture, whose interests and good work along other lines of the road question are already well recognized.* 3.
Halaman 291 - If you can talk with crowds and keep your virtue, Or walk with Kings — nor lose the common touch, If neither foes nor loving friends can hurt you, If all men count with you, but none too much: IF — If you can fill the unforgiving minute With sixty seconds...
Halaman 291 - ... em up with worn-out tools: If you can make one heap of all your winnings and risk it on one turn of pitch-and-toss, and lose, and start again at your beginnings and never breathe a word about your loss; if you can force your heart and nerve and sinew to serve your turn long after they are gone, and so hold on when there is nothing in you Except the Will which says to them: "Hold on!
Halaman 557 - Second system, ...... 24 1,580 66 Third system 25 1,580 63 Fourth system 27 1,580 59 In addition to the saving in fuel, which may be realized by the use of electric hoists, there is a very material reduction in the labor, the cost of which is chargeable against the hoist. This may amount to the wages of one or two men in the boilerhouse if power is developed by the mining company, or of the whole boiler-house force if power is purchased, and frequently the wages of one man in the hoist-house. So...
Halaman 291 - With sixty seconds' worth of distance run, Yours is the Earth and everything that's in it, And — which is more — you'll be a Man, my son!
Halaman 554 - ... the usual method being to provide a generator for each motor and to vary the generated potential. As mine-shafts are usually scattered over a considerable area, and the conditions in close proximity to the shafts are not such as to permit of the economical generation of electric power, the central electric station is usually placed at a considerable distance from the hoists. The power is generated and transmitted to the mines as alternating current, and is then transformed at each shaft into...
Halaman 328 - ... watts per candle power as against 3.1 of the earlier lamps and of charging power at 10 cents per kilowatt hour, we get as a result a saving of $240,000,000 per year, or two-thirds million per day, Naturally, this is a saving which is to be distributed among producers, consumers, and others, but illustrates very well the possibilities.