Displacement Current - Necessity

Necessity

Some implications of the displacement current follow, which agree with experimental observation, and with the requirements of logical consistency for the theory of electromagnetism.

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Famous quotes containing the word necessity:

    There is no necessity to separate the monarch from the mob; all authority is equally bad.
    Oscar Wilde (1854–1900)

    Old-fashioned determinism was what we may call hard determinism. It did not shrink from such words as fatality, bondage of the will, necessitation, and the like. Nowadays, we have a soft determinism which abhors harsh words, and, repudiating fatality, necessity, and even predetermination, says that its real name is freedom; for freedom is only necessity understood, and bondage to the highest is identical with true freedom.
    William James (1842–1910)

    Heredity is a strong factor, even in architecture. Necessity first mothered invention. Now invention has little ones of her own, and they look just like grandma.
    —E.B. (Elwyn Brooks)