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The Mathematical Principles of Natural Philosophy (2)
The Mathematical Principles of Natural Philosophy - 2 Author:Sir Isaac Newton Volume: 2 General Books publication date: 2009 Original publication date: 1729 Original Publisher: Printed for B. Motte Subjects: Physics Science Lunar theory Celestial mechanics Mechanics Mechanics, Celestial Mathematics / General Science / Astronomy Science / Mechanics / General Science / Optics Science / Phys... more »ics Notes: This is a black and white OCR reprint of the original. It has no illustrations and there may be typos or missing text. When you buy the General Books edition of this book you get free trial access to Million-Books.com where you can select from more than a million books for free. Excerpt: Section IV. Of the finding of elliptic., paralolic, and hyperbolic orbit from the focus given. Lemma XV. If from the two foci S, H, (PI. 7. Fig. i.) of any ellipjis or hyperlola, we draw to any third point V the right lines S V, H V, whereof one H V is equal to the principal axis of the figure', that is, to the axis in which the foci are fituated, the other S V is lifetted in T ly the ferpendicular T R let fall upon it ; that perpendicular TR will fomewhere touch the conic fe« less