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 474
it hoc maxime ex motu TerrEe in vario ipfius fitu, perinde utfit in Planctis, qui, pro motu Terrae vel confpirante vel contra-rio, nunc retrogradi funt, nunc tardius progredi videntur, nuncvcro celerius. Si Terra pergit ad eandem partem cum Cometa,& motu angulari circa Solem tanto celerius… … (detracSo motu Terrse) fit faltem tardior. At fi Terra pergit incontrarias partes , Cometa exinde velocior apparet. Ex accele-ratione autem vel retardatione vel motu retrogrado diftantia Co-metae in hunc modum coUigitur. Sunto T^y/, t^^, y§Cobfervatae tres longitudines Cometae , fub initio motus,…
Mechanics · Celestial mechanics
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