Phoronomia, Sive De Viribus Et Motibus Corporum Solidorum Et Fluidorum Libri Duo, fol. 270
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- 270 DE VTRIBUS ET MIOZIBUS CORPORUM. L1B. II.
- PROPOSITIOLII. LPMMA.
- 468. Si recta AM positione datae alia AB magnitudine data perpen-
- diculariter insistat, per cujus terminum B rectae quaecunque BM, Bm
- ad alteram AMI ducantur, e per puncta M, m, SEC. in quibus huic
- occurrunt; perpendiculares MN, mn, eC. ipsis BM, Bm, eC. re-
- spective aequales, omnia puncta H, n, etc. in curva L. Nn hyperbolae
- aequilatera sita erunt, cujus centrum A, e semilatus transversum
- AL.
- Fi8. X18. Positisque punctis M, m indefinite vicinis, ac descripto centro B in-
- tervallo BM arculo Mu, junctisque ANT, An, rectanculum (ub radio
- BA e arculo Me dupbum erit trilinei AVn seu elementi sectoris hy-
- perbolici ANL.
- T. DuCatE NX parallela AM, ec quia (secundum hypothesin)
- MIN = BM, C AB = AL, CrIt AX =XNI2 + AL, vel XN2= AX
- ANV =rCC. IO BXL, ergo punctum N est in lrperbola aequila-
- tera LNY, cujus latus transversum cA BL. ex centrum A. C UEVa L N
- etiam hyperbola erit, (i M N ad BM fuerit in quacunque data ra-
- TiOne.
- TI. Per punctum N ducta sIC tangens hyperbolx Ng, cruntque
- ErES MIN vel BMI, AI vel BA e Ag in continua rationc, atque
- adeo BMI: BA = BA: Ag, atqui propter criangula similia ABM e
- A.Nm, est etiam BM: BA = Mm vel NO: MIp; ergO NO: MN =BA:
- A9, acque adeo BA. MIp = LIo. A9 (num. IV. 3. 464.) =2. AIn.
- Ouod crat demonstrandum.
- C OROL L A R L U _ I.
- 469. Adeoque, E tOta AMI infinitis composita sic particulis infi-
- nitesimis qualis NIm, ex per singularum terminos rectae BM ductxe
- intelligantur, erit factum ex omnibus arculis Mu, quos ricinae quae-
- que BM incercipiunt, ex radio BA aequale duplo omnium triangu-
- lorum AAm quae in sectore hyperbolico ANL. continentur, id est,
- duplo ipsius lectoris.
- C OR OL L A R FU N II.
- 470. Ducendo igitur per punctum interfectionis + rectae AN et
- tansentis hyperbola At in vertice, lineam isr parallelam AL, et
- USL.
Cite
Phoronomia, Sive De Viribus Et Motibus Corporum Solidorum Et Fluidorum Libri Duo, fol. 270. Machine transcription, not an edition: Leibniz Legible (model FoNDUE-GD_v2_ft_Leibniz, run 74). https://leibnizlegible.com/page/1066518432:0298?run=74