Newton, Isaac, Philosophia naturalis principia mathematica, 1713

List of thumbnails

< >
431
431
432
432
433
433
434
434
435
435
436
436
437
437
438
438
439
439
440
440
< >
page |< < of 524 > >|
1Eclipticæ; Q, qQuadraturas Lunæ in plano Eclipticæ, & p K
perpendiculum in lineam QqQuadraturis interjacentem. Vis
Solis ad perturbandum motum Lunæ (per Prop.xxv.) duplex eſt,
altera lineæ LM,altera lineæ MTproportionalis. Et Luna vi
priore in Terram, poſteriore in Solem ſecundum lineam rectæ ST
a Terra ad Solem ductæ parallelam trahitur.
Vis prior LM
agit ſecundum planum orbis Lunaris, & propterea ſitum plani nil
mutat.
Hæc igitur negligenda eſt. Vis poſterior MTqua planum
Orbis Lunaris perturbatur eadem eſt cum vi 3PKvel 3IT.
Et hæc vis (per Prop.xxv.) eſt ad vim qua Luna in circulo circa
212[Figure 212]
Terram quicſcentem tempore ſuo periodico uniformiter revolvi
poſſet, ut 3ITad Radium circuli multiplicatum per numerum
178,725, ſive ut ITad Radium multiplicatum per 59,575. Cæte­
rum in hoc calculo & eo omni qui ſequitur, conſidero lineas om­
nes a Luna ad Solem ductas tanquam parallelas lineæ quæ a Terra
ad Solem ducitur, propterea quod inclinatio tantum fere minuit
effectus omnes in aliquibus caſibus, quantum auget in aliis; &
Nodorum motus mediocres quærimus, neglectis iſtiuſmodi minu­
tiis, quæ calculum nimis impeditum redderent.

Text layer

  • Dictionary
  • Places

Text normalization

  • Original
  • Regularized
  • Normalized

Search


  • Exact
  • All forms
  • Fulltext index
  • Morphological index