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

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    <archimedes>
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            <p type="main">
              <s id="s.001229">
                <pb pagenum="105" xlink:href="025/01/109.jpg"/>
              aëris, cujus pars versùs A, & pars versùs I gravitet, tribus modis definiri
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              poteſt hujus cylindri portio, quæ versùs A, & ea; quæ versùs I gravitat;
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              Primo diviſa AI bifariam in F ; & ſic FK gravitat versùs I & FB versùs A.
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              </s>
              <s id="s.001230">Secundo diviſa bifariam BK in M, & ſic BM versùs A, & MK
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              versùs I. gravitat. </s>
              <s id="s.001231">Tertiò ita diviſa AI vt ſegmentum gravitans ver­
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              sùs A, ſit ad aliud gravitans versùs I, vt globus A ad globum I.
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              </s>
              <s id="s.001232">Quartus modus addi poteſt, vt ſcilicet BK ſecetur juxta dictam propor­
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              tio nem globorum. </s>
              <s id="s.001233">Quidquid autem ex his dicatur, ad rem noſtram perinde
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              eſt; quare majoris facilitatis gratia, primum modum accipio, & per punctum
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              F duco GFH perpendiculariter, quæ vocetur dirimens connectentem
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              centra, ſeu linea confinium. </s>
              <s id="s.001234">Quod dixi de AF, IF, de AN, IN dictum eſto,
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              item de reliquis lineis, ſeu cylindris. </s>
            </p>
            <p type="main">
              <s id="s.001235">
                <emph type="italics"/>
              Chryſocom.
                <emph.end type="italics"/>
              </s>
              <s id="s.001236"> Multis ſanè, præſertim Peripateticis, hæc tua doctrina mi­
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              nimè probabitur, qui juxta mentem Philoſophi docent, centrum terræ
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              idem eſſe cum centro Vniverſi, versùs quod omnia gravia tendunt; nega­
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              bunt igitur portionem aëris ſupra dirimentem GH, versùs Lunæ cen­
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              trum gravitare. </s>
            </p>
            <p type="main">
              <s id="s.001237">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.001238"> Videtur quidem Stagirita hoc ipſum, quod dicis ad ſtruere; præ­
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              ſertim lib.2. de cœlo text. </s>
              <s id="s.001239">100.
                <emph type="italics"/>
              Accidit autem,
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              inquit,
                <emph type="italics"/>
              idem terræ medium
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              eſſe, ac Vniverſi,
                <emph.end type="italics"/>
              ſed vt terræ centrum eſt, in id ferri per accidens; per ſe
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              verò ad centrum Vniverſi; de hoc tamen lib. 3. text.33. dubitare videtur;
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              vbi enim dixiſſet, quidquid pondus habet, ferri ad medium, ſeu versùs
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              centrum, ſtatim ſubdit hæc:
                <emph type="italics"/>
              vtrùm autem ad terræ medium, an Vniverſi
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              feratur, cùm idem medium ſit ipſorum, alia ratio eſt.
                <emph.end type="italics"/>
              Cùm autem Ariſtoteles
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              cœlos ſolidos poſuerit, & Sphæram ignis aëre ſuperiorem, & quintam
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              eſſentiam, quam animatam eſſe indicare videtur, quid mirum, cùm ele­
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              menta noſtra, juxta illum, vltra concavum Lunæ non extendantur, & ſuis
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              orbibus ſolidis ſolidi Planetæ affixi ſint, nihil vltra prorsùs gravitare aut
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              levitare, ac proinde gravium & levium commune centrum in Mundi &
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              Terræ centro collocavit. </s>
              <s id="s.001240">Si tamen cœlum eſſe fluidum putaſſet, & cœ­
                <lb/>
              leſtes Sphæras in illo communi medio moveri, & ſuos agere orbes; ſi
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              Cometas de novo gigni & mori in ætherea regione, nec non faculas &
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              maculas in Solis diſco. </s>
              <s id="s.001241">Martem propiùs ad terras nonnunquam accedere
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              quàm Solem; novas Stellas in Cœlo naſci; ſi demùm alia multa, quæ
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              jam ex obſervationibus comperta ſunt, ſciviſſet, non eſt dubium, quin alia
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              de Cœlo & Vniverſi conſtructione ſcripſiſſet; quanquam cum Ariſtotele
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              Dico centrum terræ Vniverſi centrum eſſe, circa quod cœleſtes Sphæræ
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              ſuos orbes agunt, versùs quod illa omnia gravia tendunt, ſublunaria ſci­
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              licet, quæ Ariſtoteles agnovit; ſed cùm hoc commune medium vltra
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              extendatur, & eadem ratione pro formatione & conſervatione militet
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              in aliis globis; tot pono centra, in quæ partes circumpoſitæ nituntur,
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              quot ſunt globi totales; gravitas enim non totius, ſed partium proprietas
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              eſt, cujus vi quælibet pars versùs ſuum centrum nititur, & contranititur,
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              ne ab eo ſeparet ut, & ſi vnquam ab eo ſeparetur, in illud denuò ſe reci­
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              pit. Quid vero ad conmune medium ſpectat, illius pottio verſùs illam</s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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