Fabri, Honoré, Dialogi physici in quibus de motu terrae disputatur, 1665

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              <s id="s.002430">
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              nata fiſtula tanta vi in baſim D impingi, itemque elevato ſupra ſuper­
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              ficiem EF extremo aperto B; item ſi admoto preſſè digito extremo B
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              fiſtula educatur, inclineturque; cuncta hæc attentè conſideranti, & in­
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              tuenti nulla tanti impetus cauſa extrinſeca eſſe videtur, vt patet ex iis
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              quæ fusè à me ſupra diſputata ſunt; immo admoto preſſè digito, nulla
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              cauſa exterior applicata eſt; igitur interna eſt, vel intrinſeca; igitur vel
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              à corpore compreſſo vel tenſo: Non primum, nam non loci, ſed locati
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              ſunt anguſtiæ; igitur alterum. </s>
              <s id="s.002431">Quartò, dum admoto preſſè digito,
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              eductam fiſtulam ſic libro, vt modo in D, modò in B Mercurius magna
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              vi impingatur, hoc ferè in inſtanti fieri videtur, ad inſtar quaſi fulguris
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              coruſcantis; ſed tanta vis motus tribui non poteſt motui gravium in
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              plano inclinato, cùm vix fiſtula à plano horizontali tantulum deflectat,
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              ac proinde planum hoc adeò celerem motum non patitur; alia igitur
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              cauſa eſt tam velocis motus; non compreſſio, vt dixi; igitur tenſio.
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              </s>
              <s id="s.002432">Quintò, Illa materia quæ priùs occupabat ſegmentum CD, inclinata fiſtu­
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              la & labente Mercurio in CD, temporis ferè momento tranſit in CI,
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              nec vlla via apparet, qua tranſeat; tenſam igitur eſſe neceſſe eſt; tenſa
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              enim illico adducuntur. </s>
            </p>
            <p type="main">
              <s id="s.002433">
                <emph type="italics"/>
              Auguſtin.
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              </s>
              <s id="s.002434"> Hanc hypotheſim apprimè intelligo, videoque, multa ſanè
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              in ea explicari poſſe. </s>
              <s id="s.002435">Primò, cur extet Mercurius CI, quia ſcilicet reſi­
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              ſtentia ad vlteriorem materiæ tenſionem, adæquat vim ponderis Mer­
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              curij CI. Secundò, Cur ſemper eadem ſit extantis Mercurij CI nimi­
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              rum pedum 2. & ferè
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              ſive anguſtior ſit fiſtula, ſive laxior; quia in eadem
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              proportione creſcit reſiſtentia materiæ ad vlteriorem tenſionem, in qua
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              creſcit pondus Mercurij extantis. </s>
              <s id="s.002436">Tertiò, Cur inclinata fiſtula adduca­
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              tur Mercurius in CD ; quia tunc minus eſt ponderis Mercurij momen­
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              tum in plano inclinato; quid mirum ergo; ſi à tenſionis momento ſu­
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              peretur, quod ſupponitur æquale momento ponderis in perpendiculo.
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              </s>
              <s id="s.002437">Quartò, cur veſica cyprina infletur, pulpa digiti ad inſtar vberis attolla­
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              tur, ſanguis exugatur; tenſa enim materia alia corpora, quibus eſt con­
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              tigua, ad ſe adducit & trahit. </s>
              <s id="s.002438">Quintò, Cur Mercurius educta fiſtula ex
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              Mercurio, tanta vi in oppoſitam fiſtulæ baſim impingatur; tribus illis
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              modis, de quibus ſupra; vis enim tenſionis, quæ tunc prævalet; initio
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              maxima eſt; in hoc diſſimilis potentiæ motrici gravium, quæ initio mi­
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              nima eſt. </s>
              <s id="s.002439">Sextò, Cur applicato ferro candente ſegmento fiſtulæ CD ſub­
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              ſidat Mercurius infra C; quia tunc rareſcit illa materia, vnde magis ex­
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              tenditur; hinc deorſum Mercurium CI neceſſariò deprimit; ſecus verò
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              applicato gelu denſatur, atque adeò contrahitur, & Mercurium ſurſum
                <lb/>
              attollit. </s>
              <s id="s.002440">Septimò, Cur appenſa fiſtula DB totum extantis Mercurij CI
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              pondus ſentiatur; quia Mercurius adhæret materiæ tenſæ, & hæc fiſtu­
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              læ. </s>
              <s id="s.002441">Octavò, Cur ſtatim poſt deſcenſum, libretur aliquamdiu Mercurius,
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              ita vt modò ſupra C aſcendat, modò infra deprimatur; quia cùm de­
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              ſcendat motu accelerato vires acquirit eundo, ac proinde reſiſtentiæ
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              momentum ſuperat; at decreſcente pondere, prævalet tandem tenſio­
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              nis reſiſtentia; vnde ſurſum denuò Mercurius adducitur; atque ita ali-</s>
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