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

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            <pb pagenum="47" xlink:href="025/01/051.jpg"/>
            <p type="main">
              <s id="s.000517">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.000518"> Hoc facilè damus, imò hoc pro generali axiomate libenter
                <lb/>
              admitto, nihil vnquam deſtrui, niſi quando eſſe non poteſt, niſi fruſtrà
                <lb/>
              ſit. </s>
              <s id="s.000519">Sic anima, quæ defectu corrupti organi non poteſt ampliùs operari
                <lb/>
              in corpore, deſinit eſſe, omninò quidem, ſi extrà organum operari
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              non poteſt, vt de animabus brutarum animantium Philoſophi docent, non
                <lb/>
              tamen omninò & abſolutè, ſed in corpore tantùm, ſi extrà organum opera­
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              ri poteſt, vt anima rationalis. </s>
            </p>
            <p type="main">
              <s id="s.000520">
                <emph type="italics"/>
              Chryſec.
                <emph.end type="italics"/>
              </s>
              <s id="s.000521"> Hoc idem principium ad alias qualitates etiam extendi poteſt;
                <lb/>
              caloris v.g. frigoris, &c. </s>
              <s id="s.000522">quæ quamdiu ſuum finem conſequi, & præſta­
                <lb/>
              re effectum poſſunt, in ſubjecto, cui inhærent, tamdiu in eo permanent
                <lb/>
              intactæ; vt ſi per actionem qualitatis contrariæ novus effectus inducitur,
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              ac proinde, vel totus prior, vel pars illius deſinit, tunc prima illa qualitas
                <lb/>
              in ſubjecto illo fruſtra eſſe dicitur, ac proinde vel ſecundùm ſe totam,
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              ſi totus effectus abactus eſt, vel ſecundùm ſui partem, pro rata effectus
                <lb/>
              deſtructi, eſſe deſinit. </s>
            </p>
            <p type="main">
              <s id="s.000523">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.000524"> Ad ſpeciem hæc fortè cuipiam vera eſſe videntur; at profectò
                <lb/>
              res ſecus ſe habet in præfatis qualitatibus, de quibus modò diſputatio
                <lb/>
              inſtituta non eſt, ſatis mihi eſt, ſi in noſtro impetu res ita ſe habeat; ad­
                <lb/>
              mitto etiam ea, quæ dixiſti, Auguſtine, de anima rationali; de brutorum
                <lb/>
              animabus aliqua fortè difficultas eſſet, ſed huius loci non eſt. </s>
              <s id="s.000525">Sit igitur
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              ſecundum principium ex eadem doctrina motuum huc derivatum, cor­
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              pus eo motu movetur, quo faciliùs moveri poteſt, minore ſcilicet ſum­
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              ptu, & cum minore difficultate, compenſatque vt plurimum in vno,
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              quod in alio difficiliùs tantùm obtinere poſſet; hæc iam ſupra indicavi in
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              primo congreſſu; ſic cylindrus, vel in plano lævigato iacens, vel humido
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              innatans ab altera extremitate pulſus, vel tractus etiam per lineam per­
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              pendiculariter incidentem, motu recto non movetur. </s>
              <s id="s.000526">ſed circulari, circa
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              centrum, quod terminat mediam proportionalem totam inter & dimi­
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              diam, ita vt major quantitas ſit versùs illam extremitatem, cui potentia
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              motrix applicata eſt. </s>
            </p>
            <p type="main">
              <s id="s.000527">
                <emph type="italics"/>
              Auguſtin.
                <emph.end type="italics"/>
              </s>
              <s id="s.000528"> Licèt fortè in parergum incidamus, tantulum ſchematis de­
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              ſidero, vt rem à te ſolo auditam meliùs intelligam. </s>
            </p>
            <p type="main">
              <s id="s.000529">
                <emph type="italics"/>
              Antim.
                <emph.end type="italics"/>
              </s>
              <s id="s.000530"> Non opus eſt alio ſchemate: Supponamus enim cylindrum
                <lb/>
              BC (
                <emph type="italics"/>
              in Fig. pag.
                <emph.end type="italics"/>
              45.) innatantem humido, pulſum in B, ſitque vt BC
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              ad BK, ita hæc ad BA, & ex K ducantur arcus BG, CN ſimiles, duca­
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              turque GKN; cylindrus pulſus, vt dixi ex B, deſcribit ſuo motu duos
                <lb/>
              ſectores BKG, CKN, quia ſcilicet ſpatium vtroque contentum eſt om­
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              nium poſſibilium minimum, ſuppoſito quolibet alio arcu, non minore
                <lb/>
              BG, & duobus radiis, qui ſimul coniuncti ſint æquales toti BC, quod
                <lb/>
              aliàs demonſtraui, nempe à ſectoribus ſimilibus ad triangula propor­
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              tionalia, & ab his ad ſimplicem lineam gradum faciens, reduxi rem ad
                <lb/>
              hoc problema, datam quantitatem ita ſecare, vt maius ſegmentum ſit
                <lb/>
              ad minus, vt hoc ad tertium, & compoſita ex duabus extremis ſit om­
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              nium poſſibilium minima; vel ſic Datæ quantitati vnam partem detra­
                <lb/>
              here, & aliam addere, vt reſidua ſit ad detractam, vt detracta ad addi-</s>
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          </chap>
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