Philosophiae naturalis principia mathematica (1723)
Newton, Isaac, Sir, 1642-1727, Cotes, Roger, 1682-1716, ed, Adams, John, 1735-1826, former owner. BRL, Adams, Thomas Boylston, 1772-1832, former owner. BRL, John Adams Library (Boston Public Library) BRL · Amstaelodami : Sumptibus societatis · leaf 61
mp;:r produ- -^ipfique RT) parallela agi r^^, & ci arcui AB fimilis femper fit arcus Ab.Et coeuntibus punftis ^, 5,angulus bAdevanefcet, & propterea triangula triafemper finita rAb, r Ab., r Ad coinci-dent , funtque eo nomine fimilia & ae-qualia, Unde & hifce femper fimilia… … LEMMA PRINCIPIA MATHEMATICA. 29 , L E M M A IX. Si retla AE ^ curva A B C pofithne data fe muttio fecentm angulo dato A, ^ ad reBam tUam tn alio dato angu-lo ordinatlm applkentur B D, C E curv^ occurrentes mB, C; dem punBa B, C fimul accedant ad punBum A:dko^ quod area trtangulorum ABD, ACE erunt…
Mechanics · Celestial mechanics
Internet Archive · Boston Public Library · Public Domain Mark 1.0. Free to use for anything.
![An illustration from Nicolai Copernici Torinensis De reuolutionibus orbium coelestium, libri VI : Habes in hoc opere iam recens nato, & aedito, studiose lector, motus stellarum, tam fixarum, quàm erraticarum, cum ex ueteribus, tum etiam ex recentibus obseruationibus restitutos: & nouis insuper ac admirabilibus hypothesibus ornatos. Habes etiam tabulas expeditissimas, ex quibus eosdem ad quoduis tempus quàm facillime caculare poteris. Igitur eme, lege, fruere. [Line in Greek] (1543)](https://img.insideoutlibrary.com/img/200/ia-nicolaicopernici00cope-185-101.webp)