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 431
^D^ br … Let A C reprefent the Diameter of a lower Pul-Ijey, on whofe Center at B the Weight 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…
Science · Plurality of worlds · Mechanics · Cryptography
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