Fabri, Honoré, Tractatus physicus de motu locali, 1646
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              impedimentum motu ſui ſubiecti, in eo non agit, quod non impedit; </s>
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              cum impediatur tantùm in vna linea, in ca tantùm agit; igitur non
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              agit in orbem. </s>
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              Scholium.
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              <s id="N1331A">Obſeruabis primò, hanc primam eſſe difficultatem; cum in hoc im­
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              petus maximè differat ab alijs qualitatibus ſi quæ ſunt, quæ agunt in or­
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              bem, vt dicemus ſuo loco. </s>
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              <s id="N13324">Obſeruabis ſecundò, hanc etiam eſſe communem illorum ſententiam,
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              qui dicunt impetum ad extrà produci ab ipſo mobili, ſed ita vt ab illis
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              vix ſolui poſſit; cum tamen à nobis facilè ſoluatur. </s>
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              <s id="N1332E">Obſeruabis tertiò, impetum in vtroque munere cauſæ ſubeſſe tantùm
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              vni lineæ; </s>
              <s id="N13334">ſcilicet exigit motum per vnam lineam; </s>
              <s id="N13338">cum per plures ſi­
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              mul motus eſſe non poſſit; </s>
              <s id="N1333E">ne idem mobile ſimul eſſet in pluribus lo­
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              cis; </s>
              <s id="N13344">& producit impetum per vnam lineam; cum producat tantùm pro­
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              pter motum. </s>
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              <s id="N1334C">Obſeruabis quartò, alias qualitates, ſi quæ ſunt, non agere ad extra,
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              vt tollant impedimentum ſui effectus ad intra; </s>
              <s id="N13352">qui ſcilicet ab impedi­
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              mento extrinſeco impediri non poteſt; </s>
              <s id="N13358">vt accidit in ipſo impetu; </s>
              <s id="N1335C">etenim
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              corpus non poteſt moueri niſi nouum locum acquirat: neque nouum
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              locum acquirere ab alio corpore occupatum, niſi corpus hoc loco ce­
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              dat, neque hoc loco cedere poteſt ſine motu, vel moueri ſine impetu,
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              igitur cum impediat motum amoueri debet, accepto dumtaxat impetu
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              ab alio mobili. </s>
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            <p id="N1336A" type="main">
              <s id="N1336C">Obſeruabis quintò nonnullos eſſe, qui volunt motum vnius corporis
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              transferri in aliud corpus; </s>
              <s id="N13372">ſed mera eſt metaphora; </s>
              <s id="N13376">nihil enim prorſus
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              eſt quod ab vno in aliud tranſeat, ſeu transferatur; nec aliud dici po­
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              teſt, niſi quod dictum eſt, impetum ſcilicet nouum produci. </s>
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              <s id="N13380">Hinc etiam reiicies commentum illorum, qui dicunt ideo vnum
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              corpus ab alio moueri, quia ab vno in aliud deriuantur corpuſcula illa,
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              quæ faciunt lumen, & calorem; </s>
              <s id="N13388">quia lumen, & calor ſunt veræ qualita­
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              tes, non corpuſcula, vt demonſtrabimus in 5. tractatu: </s>
              <s id="N1338E">Adde quod li­
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              cet ferrum candens aliud frigidum impellat, etiam velociſſimè; </s>
              <s id="N13394">hoc ip­
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              ſum æquè frigidum manet; </s>
              <s id="N1339A">denique in craſſis tenebris nix ſeu glacies
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              frigidiſſima perniciſſimè moueri poteſt: ſed apage iſta commenta. </s>
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              Theorema
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              46.
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              Omnes partes impetus mobilis agunt ad extra actione communi.
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              <s id="N133B7"> Probatur
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              per Ax. 13. n. </s>
              <s id="N133BC">1. niſi enim agerent actione communi ſed quælibet ſuam
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              produceret; </s>
              <s id="N133C2">cur potius in hac parte ſubiecti, quam in alia, deinde ap­
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              plicatur tantùm vna immediatè; </s>
              <s id="N133C8">Igitur agunt omnes actione commu­
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              ni; </s>
              <s id="N133CE">omnes inquam illæ, quæ impediuntur; </s>
              <s id="N133D2">cum enim impetus agat
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              tantùm ad extrà vt tollat impedimentum ſui motus; ille proſectò age­
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              re non debet, cuius motus vel effectus non impeditur. </s>
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