Identifier: mathematicalelem01grav (find matches)
Title: Mathematical elements of natural philosophy, confirm'd by experiments : or, An introduction to Sir Isaac Newton's philosophy
Year: 1747 (1740s)
Authors: Gravesande, Willem Jacob 's, 1688-1742 Desaguliers, J. T. (John Theophilus), 1683-1744, tr Adams, John, 1735-1826, former owner. BRL John Adams Library (Boston Public Library) BRL
Subjects: Physics Natural Sciences
Publisher: London : Printed for W. Innys, T. Longman and T. Shewell, C. Hitch ..., and M. Senex ...
Contributing Library: John Adams Library at the Boston Public Library
Digitizing Sponsor: Internet Archive

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ght, and the Plane G be fo placed that the Axis of the Circum-volution of the Cylinder BD (Fig. 5.) may anfwer to the loweflPoint of the Semicircle above-mentioned. Howfoever the Direc-tion of the Jet be inclined, its Amplitude will always be near theQuadruple of the Line B M in the Semicircle, ABL, (PL 19.Fig. 5.) There is a fmall Difference, which chiefly arifes from theRefiffance of the Air. Experiment 5. 1616. The Machine being difpofed as in the foregoing Experiment, i the Mercury fpouts in two Diredlions, and the Inclination of one jof them exceeds an half Right-Angle as much as the other is under \it, the Mercury will cut the horizontal Line, which is drawnfrom the lowefl; Point of the Semicrcle on the Plane G, in Pointsbut a little diflant from one another. E X P E R I M E N T 6. j5j~ Everything being difpofed as before, if the Way for any Di- reftion of the Motion be drawn on the Plane, as was faid in theDefcription of the Machine, and the Index/,6 agrees with the Di- vifioii
Text Appearing After Image:
Chap. 9 of Natural Phiiofophy. ^^%^ vilion of the Quadrant denoting that Inclination, the Mercury iaits Motion will nearly follow the Line drawn. If you draw theWays for feveral Angles, by the Motion of the Handle a e, this may•be cbfervd fucceilively in thefe different Ways, E X P E R I M E N T 7. ■ If another Plane as G be ufed, in which what is above-mentiond 1618.be drawn for another Celerity of the Mercury, the Experiments willfuGceed in the fime Manner. By the fame Method, as we do by a Semicircle determine theDiftance to which Bodies obliquely projedted will fall, one may findthe Diftance to which a Fluid fpouts out of the Side of a Veflel,when the VefTel is fet upon an horizontal Plane; which Diftanceis different according to the different Height of the Hole, ih^ up-per Surface of the Liquid remaining the fame. Let A B be the Height of a Vejjel filld with a Fluid; let this 1619,Height be divided into two equal Parts at C; with the Center C ?• LIV.and Diftance C A defcrib

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