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 429

An illustration from 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, leaf 429 — betwixt the Weight and the Pow-er is greater, and the Motion it felf more eafy :But now in this Invention, that Inconvenience is re-medied ; for by a frequent Rotationr of the Axis,the Weight may be moved for any Height, orLength, as Occafion (hall require. Unto this Faculty may we refer the Force… … All Mechanical Towers, All which are but feveral kinds of this Third Me-chanical Faculty. In which, the Points j4 B C doifsprefent the Places of the Power , the Fulciment,and the Weight j the Power being in the fame pro-portion unto the Wfiight, as -B C is unto £ A. ^5 CHAP. VIL Concerning the…

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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)

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