Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

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DE IIS QVAE VEH. IN AQVA.
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              <pb o="5" file="0021" n="21" rhead="DE IIS QVAE VEH. IN AQVA."/>
            midi ſuperficie extare. </s>
            <s xml:space="preserve">Quare conſtat magnitudinem a
              <lb/>
            tanta ui ſurſum ferri, quãta deorſum premitur ab eo, quod
              <lb/>
            eſt ſupra; </s>
            <s xml:space="preserve">uidelicet à d, cũ neutra ab altera expellatur, ſed
              <lb/>
            d fertur deorſum tanta grauitate, quanta eſt c: </s>
            <s xml:space="preserve">ponebatur
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            enim grauitas eius, in quo d ipſi c æqualis. </s>
            <s xml:space="preserve">patet igitur
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            illud quod demonſtrare oportebat.</s>
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          </p>
          <div type="float" level="2" n="1">
            <figure xlink:label="fig-0020-01" xlink:href="fig-0020-01a">
              <image file="0020-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/4E7V2WGH/figures/0020-01"/>
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        <div type="section" level="1" n="14">
          <head xml:space="preserve">PROPOSITIO VII.</head>
          <p>
            <s xml:space="preserve">
              <emph style="sc">Solidae</emph>
            magnitudines humido grauiores
              <lb/>
            demiſſæ in humidum ferentur deorſum, donec
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            deſcendant: </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">erunt in humido tanto leuiores,
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            quanta eſt grauitas humidi molem habentis ſoli-
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            dæ magnitudini æqualem.</s>
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          </p>
          <p>
            <s xml:space="preserve">SOLIDAS magnitudines humido grauiores, in hu-
              <lb/>
            midum demiſſas deorſum quidam ferri, donec deſcẽdant,
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            manifeſtum eſt: </s>
            <s xml:space="preserve">partes enim humidi, quæ ſub eis ſunt, pre-
              <lb/>
            muntur magis, quàm partes æqualiter ipſis adiacentes;
              <lb/>
            </s>
            <s xml:space="preserve">quoniam magnitudo ſolida humido grauior ponitur: </s>
            <s xml:space="preserve">le-
              <lb/>
            uiores autem eſſe uti dictum eſt, demonſtrabitur hoc mo-
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            do. </s>
            <s xml:space="preserve">Sit enim aliqua ma-
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              <anchor type="figure" xlink:label="fig-0021-01a" xlink:href="fig-0021-01"/>
            gnitudo a grauior hu-
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            mido: </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">fit magnitudi-
              <lb/>
            nis quidem a grauitas
              <lb/>
            b c: </s>
            <s xml:space="preserve">humidi uero molẽ
              <lb/>
            habentis æqualem ipſi a
              <lb/>
            grauitas ſit b. </s>
            <s xml:space="preserve">demon-
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            ſtrandum eſt magnitudi
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            nem a in humido exiſtē
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            tem habere grauitatem
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            æqualem ipſi c. </s>
            <s xml:space="preserve">Accipia
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            tur enim alia aliqua magnitudo, in qua d, leuior humido;</s>
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