Fabri, Honoré, Tractatus physicus de motu locali, 1646
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              gitudines; </s>
              <s id="N14D96">quæ ſi colligantur, habebis characterem totius impetus, 2 1/2: </s>
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              igitur totus impetus productus in minore vecte, qui conſtat 2. punctis,
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              eſt ad impetum, qui producitur in maiore conſtante 4.punctis, vt 1. 1/2 ad
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              2. 1/2; </s>
              <s id="N14DA3">igitur vectis maior maiorem potentiam ad mouendum ipſum ve­
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              ctem requirit; non certè in deſcenſu; </s>
              <s id="N14DA9">quippe ſuo pondere deſcendit, ſed
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              in plano horizontali; </s>
              <s id="N14DAF">niſi enim potentia poſſit mouere vectem; haud
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              dubiè nullum pondus vecte mouebit. </s>
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              <s id="N14DB7">At verò ſi potentia ſit tantùm dupla minimæ, quæ datum vectem mo­
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              uere poſſit; </s>
              <s id="N14DBD">haud dubiè dato illo vecte datum ferè quodcumque pondus
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              mouere poterit; cum ipſe vectis conſtet ferè infinitis punctis in longi­
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              tudine, vt patet ex dictis, & conſideranti patebit. </s>
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              <s id="N14DC7">Obſeruabis demum in mechanicis nullam ferè haberi rationem pon­
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              deris ipſius vectis; </s>
              <s id="N14DCD">parum enim pro nihilo computatur: </s>
              <s id="N14DD1">Ex his tamen
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              erui poſſunt veriſſimæ rationes Phyſicæ proportionum vectis AH; </s>
              <s id="N14DD7">ſia­
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              que A extremitas, H centrum; </s>
              <s id="N14DDD">ſitque BH 1/2. CH 1/4, DH 1/2, EH (1/16),
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              FH (1/32), GH (1/64) pondus I applicetur in A, & moueatur; </s>
              <s id="N14DE3">certè in B moue­
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              bitur pondus K duplum I; </s>
              <s id="N14DE9">quia, cum impetus productus in B, ſit ſubdu­
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              plus in perfectione illius, qui producitur in A; </s>
              <s id="N14DEF">vt æqualis producatur in
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              B, & in A, debent produci in B duplò plures partes impetus; </s>
              <s id="N14DF5">igitur du­
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              plò maius pondus mouebit; </s>
              <s id="N14DFB">at verò in C mouebitur pondus L quadru­
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              plum I, in D octuplum, atque ita deinceps; donec tandem in G mouea­
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              tur pondus, quod ſit ad I vt 64. ad 1. & cum adhuc poſſint accipi inter
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              GH, partes aliquotæ minores, & minores ferè in infinitum, non mirum
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              eſt ſi pondus maius poſſit adhuc moueri. </s>
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              <s id="N14E09">Obſeruabis etiam in omni vecte abſtrahendo ab eius pondere, & ap­
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              plicata eadem potentia, hoc eſſe commune; </s>
              <s id="N14E0F">vt poſſit quodcumque pon­
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              dus attolli, licèt difficiliùs in minore; </s>
              <s id="N14E15">quia hic non poteſt in tam mul­
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              tas partes aliquotas ſenſibiliter diuidi, in medio tamen vecte duplum
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              ſemper pondus mouetur; ſiue ipſe vectis ſit maior, ſiue minor. </s>
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              <s id="N14E1F">Obſeruabis deinde, ſi centrum vectis non ſit in altera extremitate,
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              ſed. </s>
              <s id="N14E24">v.g. in C; </s>
              <s id="N14E2A">haud dubiè producitur in H, & in B impetus æqualis; </s>
              <s id="N14E2E">quia
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              æqualiter diſtat vtrumque punctum à centro C; </s>
              <s id="N14E34">igitur æquale pondus
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              mouebitur in B, & in H; propagatur tamen nouo modo à C verſus H, de
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              quo iam ſuprà dictum eſt. </s>
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              <s id="N14E3E">Obſeruabis denique triplicem propagationem impetus eſſe legiti­
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              mam. </s>
              <s id="N14E43">Prima eſt in motu recto, cum propagatur per partes æquales, tùm
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              in perfectione, tùm in numero in ſingulis partibus ſubjecti per gradus,
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              ſcilicet heterogeneos. </s>
              <s id="N14E4A">Secunda eſt in motu circulari, applicata ſcilicet
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              potentia centro; cum propagatur per partes æquales in perfectione, &
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              inæquales in numero. </s>
              <s id="N14E52">Tertia eſt in vecte, cum propagatur per partes
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              æquales in numero, & inæquales in perfectione. </s>
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              Theorema
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              112.
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              Impetus debet determinari ad aliquam lineam motus
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              ; </s>
              <s id="N14E70">probatur, quia
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              non poteſt eſſe impetus, niſi exigat motum per Th.14. nec exigere mo-</s>
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