The mathematical and philosophical works of the Right Reverend John Wilkins ... to which is prefix'd the author's life, and an account of his works (1708)
Wilkins, John, 1614-1672, Pre-1801 Imprint Collection (Library of Congress), George Fabyan Collection (Library of Congress) · London, Printed for J. Nicholson [etc.] · leaf 432
is faftrled,one end of the Cord being tyd to a Hook at D,Now h is evident, that half the Weight is fuftainedkD, To that there is but the other half left to be , fuftained by the Power at £ : It being all one, as ifthe Weight were tyd unto the middle of the Ba-lance: FG, whofe Ends were upheld by… … Where the Power at ^ is eqiial to the Weight atB : Now the Weight at B being but half the Ponde-rofity C, therefore the Power at A, notwithftandingthe Addition of the upper Rundle, mull be equiva-lent to half the Weight ^ and as the upper Pulley a-lone doth not abate any thing of the Weight,…
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