The Encyclopedia Americana: A Library of Universal Knowledge, Količina 10Encyclopedia Americana Corporation, 1918 |
Iz vsebine knjige
Zadetki 1–5 od 52
Stran 90
... speed , until , when 90 degrees is reached the rate of cutting of the lines becomes a maximum , sine 90 degrees : Passing on , the electromotive force dies away until 180 degrees is reached , when the value again is zero . From this to ...
... speed , until , when 90 degrees is reached the rate of cutting of the lines becomes a maximum , sine 90 degrees : Passing on , the electromotive force dies away until 180 degrees is reached , when the value again is zero . From this to ...
Stran 91
... speed and excitation being kept constant , the terminal pressure will rise by an amount corre- sponding to from 5 per cent to 6 per cent of its full load voltage . Close regulation means a much better voltage - regulation on the system ...
... speed and excitation being kept constant , the terminal pressure will rise by an amount corre- sponding to from 5 per cent to 6 per cent of its full load voltage . Close regulation means a much better voltage - regulation on the system ...
Stran 92
... speed regulation of the motors . The less the armature resist- ance the higher the efficiency and the closer the regulation of speed between no load and full load . In practice , either element may be the one to revolve . The rotation ...
... speed regulation of the motors . The less the armature resist- ance the higher the efficiency and the closer the regulation of speed between no load and full load . In practice , either element may be the one to revolve . The rotation ...
Stran 93
... speed at full load differs from synchronous speed , may be as little as 2 to 22 per cent of the speed of synchronism in large motors , and in small motors may be 5 per cent or more . If the motor above mentioned be forced above ...
... speed at full load differs from synchronous speed , may be as little as 2 to 22 per cent of the speed of synchronism in large motors , and in small motors may be 5 per cent or more . If the motor above mentioned be forced above ...
Stran 98
... speed of the drum being regulated by a device shown on the top of the machine . A traveling apron of transparent material takes the place of the glass in the printing frame of the ordinary type , and as it is under tension at all times ...
... speed of the drum being regulated by a device shown on the top of the machine . A traveling apron of transparent material takes the place of the glass in the printing frame of the ordinary type , and as it is under tension at all times ...
Druge izdaje - Prikaži vse
Pogosti izrazi in povedi
18th century acid alternating current American ampere hours amperes ancient anode armature battery became body book of Enoch cables called carbon cathode cell cent century charge chemical Church circuit coil conductors connected constitution Consult copper corpuscle cylinder direct direct current discharge dynamo effect Egypt Egyptian elec electric current electric energy electrode electrolyte electromotive force employed engine England English faradic feet France French furnace German Greek heat horse power inches industry insulated iron J. J. Thomson king known lamp later Leyden jar light literature London machine magnetic mass mechanical ment metal miles motor nature negative operation oxide period persons plants plate pole positive pounds pressure produced Prussia resistance Saint speed steam telegraphy temperature term theory tion tricity tube United usually voltage volts vote wire writing York zinc
Priljubljeni odlomki
Stran 88 - The person having the greatest number of votes as Vice President, shall be the Vice President, if such number be a majority of the whole number of electors appointed, and if no person have a majority, then from the two highest numbers on the list, the Senate shall choose the Vice President; a quorum for the purpose shall consist of two-thirds of the whole number of Senators, and a majority of the whole number shall be necessary to a choice. But no person constitutionally ineligible to the office...
Stran 88 - The electors shall meet in their respective states and vote by ballot for president and vice president, one of whom, at least, shall not be an inhabitant of the same state with themselves; they shall name in their ballots the person voted for as president, and in distinct ballots the person voted for as vice...
Stran 88 - And if the house of representatives shall not choose a president whenever the right of choice shall devolve upon them, before the fourth day of March next following, then the vice president shall act as president, as in the case of the death or other constitutional disability of the president.
Stran 272 - Now, therefore, I, ABRAHAM LINCOLN, President of the United States, by virtue of the power in me vested as Commander-in-Chief of the Army and Navy of the United States in time of actual armed rebellion against the authority and Government of the United States, and as a fit and necessary war measure for suppressing said rebellion, do, on this...
Stran 219 - Tantalum Technetium Tellurium Terbium Thallium Thorium Thulium Tin Titanium Tungsten Uranium Vanadium Xenon Ytterbium...
Stran 300 - What then are the situations, from the representation of which, though accurate, no poetical enjoyment can be derived ? They are those in which the suffering finds no vent in action ; in which a continuous state of mental distress is prolonged, unrelieved by incident, hope, or resistance ; in which there is everything to be endured, nothing to be done.
Stran 168 - CGS units of capacity. Henry (the unit of inductance) — the inductance produced in a circuit when the current is changing at the rate of one ampere per second and is producing in the circuit a difference of pressure amounting to one volt. A henry is equal to 10
Stran 258 - Thou hast said much here of Paradise Lost, but what hast thou to say of Paradise Found?
Stran 72 - To the end the body of the commons may be preserved of honest and good men, it was ordered and agreed, that, for the time to come, no man shall be admitted to the freedom of this body politic, but such as are members of some of the churches within the limits of the same.
Stran 176 - Lenz, in 1834, summed up the matter by saying that in all cases of electromagnetic induction the induced currents have such a direction that their reaction tends to stop the motion which produces them.