Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

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            <p type="main">
              <s id="s.000394">
                <pb pagenum="83" xlink:href="010/01/091.jpg"/>
                <arrow.to.target n="marg93"/>
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              remus. </s>
              <s id="s.000395">Præcipua eius ratio hæc eſt, quia reperiun­
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              tur duo loca contraria in natura ſursùm, & deorsùm,
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              ſcilicèt circumferentia, & centrum mundi, ſeu ter­
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              ræ; & euidentèr apparet, quòd terra infima eſt, &
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              ſubiacet omnibus alijs corporibus
                <expan abbr="mũdanis">mundanis</expan>
              , demer­
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              gitur enìm deſcendendo infrà aerem, & infra
                <expan abbr="aquã">aquam</expan>
              ,
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              quouſque ad locum infimum perducatur, nempè ad
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              centrum, quando nimirum ea non impeditur; hinc
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              deducit, ergo terra eſt abſolutè, & ſimplicitèr gra­
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              uis, & non relatiuè. </s>
              <s id="s.000396">E contrà videmus aerem pene­
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              trare denſitatem ipſius aquæ, & aſcendere ſuper
                <expan abbr="eã">eam</expan>
              ,
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              & ignem perforare
                <expan abbr="denſitatẽ">denſitatem</expan>
                <expan abbr="tũ">tum</expan>
              aquę, tùm aeris, per­
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              ducique ad ſupremam, & extremam ſuperficiem ae­
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              ris, veluti ad locum ſuum
                <expan abbr="naturalẽ">naturalem</expan>
              ſupremum, vbi
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              tandèm quieſcit, nec vlteriùs mouetur. </s>
              <s id="s.000397">Et quia, in­
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              quit, ignis omnibus ſupereminet, igitur eſt ſimpli­
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              citèr, & abſolutè leuis; terra omnibus ſubijcitur, igi­
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              tur eſt abſolutè grauis. </s>
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              Cap. 4. poſi­
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              tiuam leui­
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              tatem noņ
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              dari.</s>
            </p>
            <p type="main">
              <s id="s.000399">Vt verò vim, & energiam Ariſtotelici ratiocinij
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              percipiamus, & exactè perpendamus, oportet vt ſta­
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              tum controuerſiæ memoremus, ſcilicèt theſim Pla­
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              tonis, atque Democriti, quam Ariſtoteles redargue­
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              re profitetur, ante oculos ponamus, & poſtea argu­
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              mentum ab Ariſtotele adhibitum conſideremus. </s>
              <s id="s.000400">Et
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              primò ratum perſpectumque eſt duplici modo fieri
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              poſſe vt ignis ſursùm perducatur, & ſuper omnia e­
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              lementa emineat, aut nempè quia ignis ſponte ſuą
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              mouetur ſursùm à principio intrinſeco, & naturali,
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              ſcilicèt à leuitate, vel potiùs, quia ibidem ignis ex-</s>
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          </chap>
        </body>
      </text>
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