Mathematicall magick. Or, the wonders that may be performed by mechanicall geometry in two books, concerning mechanical powers [and] motions : being one of the most easie, pleasant, useful, (and yet most neglected) part of mathematicks ... (1680)
Wilkins, John, 1614-1672 · London : Printed for Edw. Gellibrand · leaf 311
Gap.18. Mechanical Motions, 28% other Treatife De Cochlez; whichhe | writ purpofely for the explication of i} this inftrument,- where the fubtilties | of it are largely and excellently hand- led. ‘ee. Now if this Screw which was be- | fore perpendicular , be fuppofed>'to | decline unto the Horizon… … | then the inclination of the revolutions if | dit) Will be increafed by the angle | EDA, though’ thefe revolutions will | fill remain in a’ kind of afcent, {o that | Water cannot beturned through them. | But |
Mechanics
Internet Archive · Wellcome Library · Public domain (published before 1931). Free to use for anything.
![An illustration from Mathematicall magick. Or, the wonders that may be performed by mechanicall geometry in two books, concerning mechanical powers [and] motions : being one of the most easie, pleasant, useful, (and yet most neglected) part of mathematicks ..., 1680, leaf 311](https://img.insideoutlibrary.com/img/1024/ia-b30327751-311-0.webp)
![An illustration from Mathematicall magick. Or, the wonders that may be performed by mechanicall geometry. In two books. Concerning mechanicall powers [and] motions. Being one of the most easie, pleasant, usefull, (and yet most neglected) part of mathematicks. Not before treated of in this language (1648)](https://img.insideoutlibrary.com/img/200/ia-b30323915-308-0.webp)
