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

Table of figures

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              <s id="s.002441">
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              quamdiu ſurſum deorſumque libratur: Cogita pondus funependulum
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              ex chorda tenſa vel arcu. </s>
              <s id="s.002442">Nonò, Cur ſi tantulum aëris in fiſtula relinqua­
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              tur, Mercurius poſt deſcenſum ſubſidat infra C: quia illud tantulum
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              aëris tum à Mercurio, tum à materia tenſa dilatatur, vnde majus ſpa­
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              tium occupet neceſſe eſt; ac proinde, vt ſpatium CD explicatur, ita
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              CI contrahitur; ſecus accidit intruſa aqua, loco aëris; quia aqua, vt
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              ad compreſſionem, ita ad tenſionem inepta eſt. </s>
              <s id="s.002443">Decimò, Cur admoto
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              preſſè digito ori B, & librata huc illuc fiſtula, illa materia tam cito tran­
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              ſeat ab extremo ad extremum: nam propter tenſionem, non modò ci­
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              tiſſimè adducitur, verùm etiam facilè contrahitur, inter fiſtulam &
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              Mercurium. </s>
              <s id="s.002444">Cuncta hæc & alia quamplurima, quæ facilè ſuggeres, in
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              hac tua hypotheſi explicare poſſem; ſed vnde quæſo iſta materia? </s>
              <s id="s.002445">&
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              quo tandem illa, cùm inclinata fiſtula aſſurgit Mercurius, & totam
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              implet? </s>
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            <p type="main">
              <s id="s.002446">
                <emph type="italics"/>
              Antim.
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              </s>
              <s id="s.002447"> Vel inde tibi maximoperè obſtrictus ſum, quod ab onere illa
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              explicandi me liberum eſſe volueris; quæ obiter quidem, clariſſimè ta­
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              men ſub vnum eundemque adſpectum adduxiſti; reliqua ſi quæ ſuper­
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              ſunt, perſtringam; ſed ante omnia, declarandum mihi eſt, vnde or­
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              tum ducat, & quò tandem abeat illa materia tenſa. </s>
              <s id="s.002448">Et verò quemad­
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              modum alij, vt naturales effectus explicent, eorumque indagent cau­
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              ſas, multa fingunt, quæ ſenſibus minimè ſubjiciuntur, vt ſpiras aëris,
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              arcus, ramos, æthera, ſubtilem materiam, cochleas magneticas, bul­
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              las, ſphærulas, ramenta, & motus diverſi generis; licèt nihil horum
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              videant, aut ſentiant, ſed gratis fortè ſtatuant, ad effectus ſenſibiles
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              explicandos, quos ex communibus principiis explicari non poſſe ſibi
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              perſuaſerunt; quidni & mihi aliquid ſimile fingere liceat, vel vt ve­
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              riùs dicam ſtatuere & ex communibus principiis deducere? </s>
              <s id="s.002449">Lico igi­
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              tur, vt rem paulò altiùs repetam, elementa noſtra pura non eſſe, ſed
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              omnino mixta, vt omnes mihi facilè concedent; etiam ipſam aquam,
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              quam bibimus, ipſum aëra quem haurimus; & cùm omne mixtum ex
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              miſcibilibus conſtet, haud dubiè quælibet mixti pars longè major eſt
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              parte miſcibilis, totum ſcilicet ſua parte majus; hinc aër per poros
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              corporum etiam laxiores non ſubit, multò minùs aqua; immo aliqua
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              corpuſcula aquis ſtygiis inſunt, quæ ſubtilis humoris vehicula in du­
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              riſſimorum etiam corporum poros ſubeunt, eorumque ſolvunt plexum;
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              hæc porrò mixta eſſe, nemo inficias eat; igitur longè minores ſunt par­
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              tes miſcibilium, ex quibus illa conſtant. </s>
              <s id="s.002450">Cùm autem ad multum natu­
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              ræ vſum, tenuis quædam materia, quæ ad purum aëris elementum lon­
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              gè propiùs accedit, quàm aër, qui nos ambit, neceſſaria eſſet, illam
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              haud dubiè omiſſam fuiſſe, ac deſiderari nemo dixerit; & vt ſunt præ­
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              cipui tres corporum ſtatus, duri ſcilicet, ſeu concreti, liquidi & ſpira­
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              bilis, nec non innumeræ ſub quolibet genere ſpecies; nihil obſtat, quin
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              aliquæ ſint corporis ſpirabilis ſpecies, quæ longè majorem tenuitatem
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              præ ſe ferant. </s>
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            <p type="main">
              <s id="s.002451">
                <emph type="italics"/>
              Chryſocom.
                <emph.end type="italics"/>
              </s>
              <s id="s.002452"> Non video, quem vſum neceſſarium huic ſubtili ma-</s>
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