What is second power?

  • (noun): The product of two equal terms.
    Example: "Nine is the second power of three"
    Synonyms: square

Some articles on power, powers:

Factors Of Production - Historical Schools and Factors - Marxian
... made a clear distinction between labor actually done and an individual's "labor power" or ability to work ... as "effort" or "labor services." Labor-power might be seen as a stock which can produce a flow of labor ... Labor, not labor power, is the key factor of production for Marx and the basis for Marx's labor theory of value ...
Optical Amplifier - Laser Amplifiers - Gain Saturation
... The inversion level of a DFA is set, primarily, by the power of the pump wavelength and the power at the amplified wavelengths ... As the signal power increases, or the pump power decreases, the inversion level will reduce and thereby the gain of the amplifier will be reduced ... saturates and cannot produce any more output power, and therefore the gain reduces ...
Universal Serial Bus - Power - Powered USB
... references or sources Powered USB uses standard USB signaling with the addition of extra power lines ... This is commonly used in retail systems and provides enough power to operate stationary barcode scanners, printers, PIN pads, signature capture devices, etc ... the bottom connector accepts a standard USB plug and the top connector takes a power connector ...
Kawasaki Heavy Industries - Products - Energy Plants and Facilities
... to fossil fuels such as wind power generation, biomass power generation, photovoltaic systems and rechargeable batteries ... Wind turbine generators Ash handling systems Combined cycle power plants Nuclear power plant equipment Boilers ...
History of Feudalism
... rule over their allocated land and their power over the territory came to encompass the social, political, judicial, and economic spheres ... These acquired powers significantly diminished centralized power in these empires ... Only when the infrastructure existed to maintain centralized power—as with the European monarchies—did Feudalism begin to yield to this new organized ...

Famous quotes containing the word power:

    There is a Restlessness springing from the consciousness of power not fully utilized, which must be present wherever there is unused power of whatever kind. This is the restlessness of the germ within the seed, struggling upward and downward towards its proper life. ... it is a striving full of pain, the cutting of tender flesh by the fetters of the captive as he struggles against their pitilessness.
    Anna C. Brackett (1836–1911)

    Quintilian [educational writer in Rome about A.D. 100] hoped that teachers would be sensitive to individual differences of temperament and ability. . . . Beating, he thought, was usually unnecessary. A teacher who had made the effort to understand his pupil’s individual needs and character could probably dispense with it: “I will content myself with saying that children are helpless and easily victimized, and that therefore no one should be given unlimited power over them.”
    C. John Sommerville (20th century)