Fabri, Honoré, Tractatus physicus de motu locali, 1646

Table of figures

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              <s id="N27402">
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              ſenſibili motu vel per ſeparationem aliquarum partium; </s>
              <s id="N2740B">cum enim da­
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              to quocumque motu, dari poſſit tardior; certè poteſt eſſe continuus
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              motus, quo per centum annos, vix latus vnguis acquiratur, quod nemo
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              Philoſophus mirabitur, qui naturam motus circularis probè intelle­
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              xerit. </s>
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            <p id="N27417" type="main">
              <s id="N27419">Decimoquintò, brachium omninò explicatum difficiliùs ſuſtinet
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              pondus, quam contractum; </s>
              <s id="N2741F">quia maius eſt explicati momentum, vt pa­
                <lb/>
              tet; eſt enim quaſi longior vectis circa extremum humerum rotatus. </s>
            </p>
            <p id="N27425" type="main">
              <s id="N27427">Obijceret aliquis, contra ea quæ diximus num. </s>
              <s id="N2742A">14. ſit globulus libram
                <lb/>
              pendens incubans menſæ 99. librarum; </s>
              <s id="N27430">haud dubiè qui menſam pon­
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              derat, centum librarum pondus ſuſtinet; igitur globulus producit in
                <lb/>
              menſa impetum. </s>
              <s id="N27438">Reſp. neg.
                <expan abbr="conſeq.">conſeque</expan>
              nam ideò ſentitur pondus 100. li­
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              brarum; quia vtrumque pondus grauitatione communi in ſuppoſitam
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              grauitat manum. </s>
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            <p id="N27445" type="main">
              <s id="N27447">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              2.
                <emph.end type="center"/>
              </s>
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            <p id="N27454" type="main">
              <s id="N27456">
                <emph type="italics"/>
              Explicari poſſunt omnia phœnomena detentionis.
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              </s>
            </p>
            <p id="N2745D" type="main">
              <s id="N2745F">Primò, aliquis detinetur, ſimul, & ſuſtinetur; </s>
              <s id="N27463">ſit globum pendulum
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              fune, cuius altera extremitas manu tenetur immobili; </s>
              <s id="N27469">nullus autem
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              producitur impetus in ipſo globo, quo ſurſum, quaſi attollatur; </s>
              <s id="N2746F">quod
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              probatur, iiſdem omninò rationibus, quibus probauimus in ſuperiori
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              Theo. de ſuſtentatione; </s>
              <s id="N27479">ipſa tamen chorda, ſi vel brachio, vel digito cir­
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              cumuoluatur, ſua vbique inurit veſtigia; </s>
              <s id="N2747F">premit enim molliorem car­
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              nem, & neruos; huic aliqua diuiſio; hinc dolor: nec in hoc ſingularis
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              eſt difficultas. </s>
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            <p id="N27487" type="main">
              <s id="N27489">Secundò, retinetur aliquod mobile, per quamlibet lineam, vel fune,
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              vel vnco, vel manu, v.g. auolans auis filo, indomitus equus fræno, diſce­
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              dens homo pallio vel manu; </s>
              <s id="N27493">hoc poſito, non producitur impetus à reti­
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              nente in mobili retento per ſe; </s>
              <s id="N27499">quia perinde ſe habet, atque ſi rupes im­
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              mobilis retineret annulo ferreo, vel vnco; </s>
              <s id="N2749F">ſed rupes non producit im­
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              petum in eo corpore, quod retinet, dixi per ſe; </s>
              <s id="N274A5">nam ſi partes aliquæ
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              ſeparari poſſint vel dilatari; haud dubiè producitur in iis impetus. </s>
            </p>
            <p id="N274AB" type="main">
              <s id="N274AD">Tertiò, hinc ſi duo retineant ſe ſe inuicem vel fune, vel annulo, vel
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              cylindro, multus impetus producitur ab vtroque in altero; </s>
              <s id="N274B3">quippe ten­
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              duntur nerui & muſculi, ex qua tenſione multæ partes ſeparantur; </s>
              <s id="N274B9">hinc
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              dolor & defatigatio; </s>
              <s id="N274BF">igitur producitur impetus, quod certè clariſſimè
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              ſequitur ex noſtris principiis; </s>
              <s id="N274C5">cum enim potentia motrix alicui mobili
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              applicatur, quod ſimul totum mouere non poteſt propter reſiſtentiam
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              vel ipſius molis, vel impetus contrarij; </s>
              <s id="N274CD">ſi fortè aliqua pars amoueri po­
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              teſt, & ſeparari ab aliis in eam potentia applicata ſuas vires exerit; quo­
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              modo verò rumpatur funis, vtrimque tractus, dicemus paulò pòſt, cum
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              de tractione. </s>
            </p>
            <p id="N274D7" type="main">
              <s id="N274D9">Quartò, retinetur aliquod mobile immobiliter in plano decliui, id­
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              que duobus modus; primò, quaſi trahendo: </s>
              <s id="N274DF">ſecundò, quaſi pellendo, nul­
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              lus impetus producitur per ſe in mobili retento à retinente; </s>
              <s id="N274E5">quod pro-</s>
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