Fabri, Honoré, Tractatus physicus de motu locali, 1646

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              enim iactum illum, qui fit pede miniſtro, cuius eadem eſt ratio, quæ
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              brachij. </s>
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              <s id="N28FF2">Secundò, iactu lapidis maioris, maior ictus infligitur; </s>
              <s id="N28FF6">ratio eſt, quia
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              diutiùs manet lapis applicatus potentiæ, ipſique adeo corpori, in quod
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              impingitur; </s>
              <s id="N28FFE">vtrumque certè, quia tardiùs mouetur, ergo tardiùs ſepara­
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              tur à manu; ergo etiam inſtans contactus maius eſt. </s>
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              <s id="N29006">Tertiò, hinc proportio ictuum ſatis facilè ex dictis ſuprà determinari
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              poteſt; </s>
              <s id="N2900C">ſi enim habeatur tantùm ratio impetus maioris, qui imprimitur
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              ſaxo ab ipſa potentia, ictus ſunt in ratione ſubduplicata ponderum, id
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              eſt, vt tempora, quibus ſaxum adhæret manui; </s>
              <s id="N29014">ſi verò habeatur ratio
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              contactus, ictus ſunt vt motus permutando, ſuppoſito æquali impetu; </s>
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              igitur, ſi habeatur ratio vtriuſque, ictus ſunt in ratione compoſita ex ra­
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              tione ſubduplicata ponderum, & ratione permutata motuum v. g. ſint
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              ſaxa AB ſit A 4.librarum, B vnius; </s>
              <s id="N29027">ratio ſubduplicata eſt 2/1 motus A eſt
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              vt velocitas; </s>
              <s id="N2902D">igitur eſt ad motum B, vt 1/2. permutetur, erit 2/1 componatur
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              vtraque ratio, eritque ratio 4/1; </s>
              <s id="N29033">igitur ictus lapidis ſunt vt pondera; quæ
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              omnia conſtant ex dictis ſuprà. </s>
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              <s id="N2903B">Quartò, leuiſſimi lapides vix iaciuntur ad modicam diſtantiam v. g.
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              granula ſabuli; ratio eſt, 1°. </s>
              <s id="N29044">quia accipiunt minùs impetus, quia citiùs
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              ſeparantur à iaciente manu, vt patet. </s>
              <s id="N29049">2°. </s>
              <s id="N2904C">quia mouetur initio velociùs in
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              aëre; </s>
              <s id="N29053">igitur ſingulis inſtantibus plùs impetus deſtruitur, vt conſtat; nam
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              in maiori ſpatio aëris eſt maior reſiſtentia. </s>
              <s id="N29059">3°.quia cùm aër perpetuo
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              motu agitetur, vt certum eſt, in leuiori corpore impetum imprimit; igi­
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              tur aliam ſiſtit vel deflectit. </s>
              <s id="N29061">4°.quia manu non poteſt rectè prehendi ia­
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              ciendus lapillus &c. </s>
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              <s id="N29068">Quintò, grauior lapis ad modicam tantùm diſtantiam iacitur; ratio
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              eſt 1°.quia producitur remiſſior impetus, cùm ſcilicet pluribus partibus
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              ſubiecti diſtribuatur. </s>
              <s id="N29070">2°.quia impetus grauitationis citiùs deſtruit impe­
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              tum extrinſecus aduenientem. </s>
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              <s id="N29077">Sextò, figura corporis iacti multùm confert ad iactum, quia ratione
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              figuræ poteſt aër plùs, vel minùs reſiſtere: </s>
              <s id="N2907D">hinc figura circularis depreſ­
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              ſior aptiſſima eſt ad iactum; </s>
              <s id="N29083">quia minor eſt aëris reſiſtentia, qualis eſt
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              figura lenticularis: </s>
              <s id="N29089">hinc ſcabri corporis, qualis eſt tophus, iactus eſt
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              difficilior; </s>
              <s id="N2908F">quia ſcilicet aër ſalebris illis, vel aſperitatibus interceptus
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              magis reſiſtit: hinc ſibilus propter colliſionem aëris &c. </s>
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              <s id="N29097">Septimò, iacitur lapis multis modis 1°. </s>
              <s id="N2909A">rotato infrà brachio extento: </s>
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              ſic vulgò iaciuntur grauiora ſaxa; </s>
              <s id="N290A2">ad iactum autem conferunt vires po­
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              tentiæ, brachium longiùs, longior arcus, Tangens, per quam emittitur di­
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              miſſum ſaxum, quæ debet facere cum horizontali angulum grad.45. ma­
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              nus ſimul explicata; </s>
              <s id="N290AC">ſi enim vna pars ante aliam dimittatur, retinetur
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              iactus, vt vulgò dicitur, figura, & moles lapidis; </s>
              <s id="N290B2">ſi enim maior eſt, non
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              procul emittitur præuia brachij gyratio, quia impetus augetur: denique
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              impreſſus toti corpori impetus, quæ omnia mirificè maiorem iactum ef­
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              ficiunt, vt conſtat ex dictis ſuprà. </s>
              <s id="N290BD">2°.iacitur lapis rotato quidem deorſum
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              brachio, ſed non ſiue aliqua eiuſdem brachij contractione, & aliquot </s>
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