The Mathematical Principles of Natural Philosophy: In Three Volumes, Volume 3

ABFD afcend alfo alſo angle aphelion apogee appear arifing axis becauſe body cafe cauſe centre centripetal force circle comet conftruction CTP2 decreaſes defcend defcribed demonftrated denfity diminiſhed diſtance diurnal motion duplicate ratio earth ecliptic ellipfis elliptic equal equation faid fame fatellite fchol fecond fector feen femi-diameters fide fimilar fince firft firſt fixed ftars fluxion fmall fome force of gravity fpace fquare fubduplicate fuch fun's fuppofe furface fyzygies given globe greater greateſt height hyperbola increaſed interfection Jupiter latus rectum leaſt leffer lefs leſs mean motion moon moon's move muſt nearly node obfervations oppofite orbit paffing parabola parallax perihelion planets pofition prop proportion quadratures quantity radius reafon refiftance reprefent reſpect revolution revolved rifing right line Saturn ſhould Sir Ifaac ſmall ſpace ſphere ſtars tail tangent thefe theſe thofe thoſe tides tion velocity Whence whofe