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

Table of figures

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              <s id="s.001062">
                <pb pagenum="205" xlink:href="010/01/213.jpg"/>
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                <lb/>
              terreno adhærendi mediante facultate deſcenſiuą,
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              quæ grauitas appellatur, hæc, inquam, grauitas di­
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              uerſimodè participata à corporibus terram ambien­
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              tibus efficit vt minùs grauia expulſa ex inferioribus
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              locis à grauioribus illa ſursùm eleuentur, & ſic cor­
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              pora elementaria optima
                <expan abbr="quidẽ">quidem</expan>
              conſtitutione
                <expan abbr="æqui-librẽtur">æqui­
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                librentur</expan>
              , & ad ſua loca naturalia aſportentur vt ibi­
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              dem quieſcant. </s>
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            <p type="margin">
              <s id="s.001063">
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              Cap. 5. de ae
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              ris grauitate
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              æquilibrio,
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              ſtructura, &
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              vi elaterią
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              eius.</s>
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            <p type="main">
              <s id="s.001064">
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              De Structura, Grauitate, Æquilibrio,
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              & Vi Elateria Aeris.
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              CAP. V.
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              <s id="s.001066">IAm ſuperiùs ſatis ſuperque oſtenſum eſt aquam̨
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              grauitare etiam in propria regione, & in ſuo toto:
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              præterea oſtendimus nullam leuitatem poſitiuam re­
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              periri in corporibus mixtis, in ijs nempè, quæ à præ­
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              dominio aerea vulgò appellantur, quod verò peculi­
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              ariter aer grauis ſit, ne dum Ariſtot. apertè fatetur,
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              cùm ait:
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              Omnia elementa grauitatem habere prætèr ignem
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              ,
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              pariterquè omnia leuitatem habere prætèr
                <expan abbr="terrã">terram</expan>
              .
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              </s>
              <s id="s.001067"> Hinc in­
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              fert:
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              terram igitur, & quæ terræ habent plurimum, vbique
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              grauitatem habere eſt neceſſarium. </s>
              <s id="s.001068">Aquam autem vbique,
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              prætèr quàm in terra, aerem verò præterquam in aqua, &
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              terra. </s>
              <s id="s.001069">In ſua enim regione omnia grauitatem habent prætèr
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              ignem, etiam aer ipſe. </s>
              <s id="s.001070">Signum autem est quia trahit plùs in­
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              flatus vter, quàm vacuus.
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              </s>
              <s id="s.001071"> Sed etiam demonſtrari po­
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              teſt eodem modo, ijſdemque rationibus, quas in prę­
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              cedenti capitulo adduximus, ſicuti enim ibi conſide-</s>
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