Philosophical instructor, or, Webster's elements of natural philosophy : subdivided into principles and illustrations ; intended for academies, medical schools, and the popular class-room (1824)
Eaton, Amos, 1776-1842, Webster, John, fl. 1804-1824 · Albany : Printed by Websters and Skinners ... · leaf 133
cy-linder called an electric, or non-conducting body, theaxis of which is supported by the two sides M m, andthese are fixed into the plank x, which is the basis ofthe machine; c is a common winch or handle by whichthe cylinder is turned, and d is the cushion or rubber,which is supported and… … on the surface of thecylinder, b is a pieceof black silk whichprevents the electricalfluid from flying off,and reaches nearly tothe receiving pointsfixed in the conductore e ; for the closer thesilk adheres to thecylinder, the greaterwill be the degree ofexcitation, e e is ametallic body, whichis…
Physics
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![An illustration from Examen dv livre des Recreations mathematiqves, & de ses problemes en geometrie mechanique, optique & catoptrique [du J. Leurechon] Où sont aussi discutées & restabiles plusieurs experiences physiques y proposées (1639)](https://img.insideoutlibrary.com/img/200/ia-examendvlivredes00mydo-368-66.webp)
