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Is a physical force, such as the attraction of earth, analogous to our "exertion of force" in muscular work? No, for the sensation of muscular effort… - William Kingdon Clifford
" "Is a physical force, such as the attraction of earth, analogous to our "exertion of force" in muscular work? No, for the sensation of muscular effort is complicated. It involves nerve and muscle, which we know not to be present in the simpler cases, e.g., the motion of a stone let fall. To talk of pushing or pulling in such a case is a personification of external nature.
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About William Kingdon Clifford
William Kingdon Clifford (May 4, 1845 – March 3, 1879) was an English mathematician and philosopher.
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Alternative Names:
W. K. Clifford
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William Clifford
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General Results.—Force is a quality of position, definite in magnitude and direction at any point; not constant.
Energy is the name of two different quantities.
1. Energy of motion, half the rate at which a body carries momentum.
2. Energy of position, defined by the statement of the law that the work done in getting from one position to another is the same by whatever path the change of position is made.
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The goodness and greatness of a man do not justify us in accepting a belief upon the warrant of his authority, unless there are reasonable grounds for supposing that he knew the truth of what he was saying. And there can be no grounds for supposing that a man knows that which we, without ceasing to be men, could not be supposed to verify.
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