Newton's Law of Universal Gravitation-printing

Isaac Newton's Universal Law of Gravity is an instantaneous "Action at a distance" force function of separating distances between two bodies of mass. And, Newton's gravity law is still presently used in matters of sending rockets to far distant asteroids and planets, notwithstanding Einstein's "correction factor". 

To allow or block links to the Internet in PDFs: https://helpx.adobe.com/acrobat/11/using/allow-or-block-links-internet.html