Fabri, Honoré, Tractatus physicus de motu locali, 1646

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              que lege, vt impetus agat quantum poteſt, & omnes partes mobilis
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              moueantur æquali motu. </s>
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              Corollarium
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              1.
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              </s>
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              <s id="N13816">Hinc reijcis illos, qui volunt à globo æquali produci in æquali ſub­
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              duplum impetum; in ſubduplo ſubtriplum; in ſubquadruplo ſubquin­
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              tuplum; ratio illorum eſt; </s>
              <s id="N1381E">quia duo globi æquales inſtanti contactus
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              perinde ſe habent, atque ſi conflarent vnum corpus; </s>
              <s id="N13824">ſed ſi conflarent
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              vnum corpus quilibet ſubduplum impetum haberet; </s>
              <s id="N1382A">ſi verò globus cum
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              alio ſubduplo faceret vnum mobile; </s>
              <s id="N13830">haud dubiè minor, id eſt, ſubduplus
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              haberet tantùm ſubtriplum impetum; atque ita deinceps; </s>
              <s id="N13836">hoc totum
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              falſiſſimum eſt; </s>
              <s id="N1383C">nam primò ſi globus æqualis acciperet tantùm ſubdu­
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              plum impetum ab alio, ſubduplo tantùm motu ferretur; </s>
              <s id="N13842">igitur ſubdu­
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              plum ſpatium decurreret, quod eſt contra experientiam, & Th. 47. Se­
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              cundò, ratio propoſita nulla eſt; </s>
              <s id="N1384A">quia quando globus impactus impellit
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              alium, eſt veluti potentiâ, quæ cum tota ſua vi, & cum impetu agit,
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              cuius nulla pars transfertur in alium globum; </s>
              <s id="N13852">nec enim migrat de
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              de ſubiecto in ſubiectum, ſed producit ſibi æqualem: </s>
              <s id="N13858">equidem ſi duo
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              globi æquales eſſent vel coniuncti, vel contigui in linea directionis,
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              quilibet pro rata acciperet impetus producti partem à potentia applica­
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              ta; </s>
              <s id="N13862">ſi eſſent æquales, quiſque ſubduplum: ſi alter ſubduplus ſubtri­
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              plum, &c. </s>
              <s id="N13868">ſed hæc ſunt ſatis facilia. </s>
            </p>
            <p id="N1386B" type="main">
              <s id="N1386D">Obijci fortè poſſet ab aliquo primò experientia; </s>
              <s id="N13871">videmus enim ſæpè
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              globum impulſum in ludo Tudiculario moueri tardiùs globo impellen­
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              te; </s>
              <s id="N13879">reſpondeo id ſæpè accidere; </s>
              <s id="N1387D">tùm quia linea directionis non connec­
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              tit centra vtriuſque globi; </s>
              <s id="N13883">igitur minor eſt ictus per Th 52. tùm quia
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              globus impellens, vel impulſus deficiunt à perfecta ſphæra; </s>
              <s id="N13889">tùm quia
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              non eſt perfecta æqualitas globorum; adde quod quò accuratiùs prædi­
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              ctæ leges obſeruantur, ipſi motus ad æqualitatem propiùs accedunt, vt
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              conſtat experientia. </s>
            </p>
            <p id="N13893" type="main">
              <s id="N13895">Obiici poſſet ſecundò deſtrui aliquid impetus globi impellentis ab ipſo
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              ictu, vt conſtat experientia; </s>
              <s id="N1389B">igitur illa pars impetus, quæ deſtruitur, non
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              producit nouum impetum in globo impulſo; </s>
              <s id="N138A1">Reſpondeo deſtrui quidem
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              aliquid impetus in globo impacto, vt videbimus infrà; </s>
              <s id="N138A7">cum tamen de­
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              ſtruatur tantùm ſequenti poſt ictum inſtanti; </s>
              <s id="N138AD">certè cum exiſtat adhuc
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              ipſo inſtanti contactus, neceſſariò agit, quippe aliquid vltimo inſtanti
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              poteſt agere; </s>
              <s id="N138B5">adde quod illud ipſum repugnat manifeſtæ experientiæ; </s>
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              licèt enim aliquando deſtruatur totus impetus in globo impacto, quod
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              ſæpè accidit in ludo Tudiculario, nam illicò ſiſtit pila eburnea; alius
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              tamen globus velociter mouetur, cuius effectus rationem infrà addu­
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              cemus. </s>
            </p>
            <p id="N138C4" type="main">
              <s id="N138C6">Obijci poſſet tertiò inde ſequi progreſſum in infinitum, nam globus
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              A impactus in globum B impellet cum æquali motu, & B in C etiam
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              æquali, C in D, atque ita deinceps; </s>
              <s id="N138CE">modò illi globi ita ſtatuantur, vt
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              linea directionis per omnium centra rectà ducatur; </s>
              <s id="N138D4">Reſpondeo, vel il-</s>
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