Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

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ARCHIMEDIS
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            extra humidi ſuperficiem, axem habetin perpendiculari
              <lb/>
            per _k_: </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">propter ea, quæ ſuperius dicta ſunt, centrum gra-
              <lb/>
            uitatis ipſius eſt in linea n _k_, quod ſitr; </s>
            <s xml:space="preserve">totius autem por-
              <lb/>
            tionis centrum grauitatis eſt in linea f t, inter _k_ & </s>
            <s xml:space="preserve">f, quod
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            ſit x. </s>
            <s xml:space="preserve">reliquæ ergo figuræ, eius ſcilicet, quæ eſt in humido,
              <lb/>
            centrum erit in rectalinea r x producta ad partes x; </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">aſ-
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              <anchor type="figure" xlink:label="fig-0028-01a" xlink:href="fig-0028-01"/>
            ſumpta ex ea linea quadam, quæ ad x r eandem habeat pro
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            portionem, quam grauitas portionis, quæ eſt extra humi-
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            dum, ad grauitatem figuræ, quæ in humido. </s>
            <s xml:space="preserve">Sit autem o
              <lb/>
            centrum dictæ figuræ: </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">per o perpendicularis ducatur
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            l o. </s>
            <s xml:space="preserve">Feretur ergo grauitas portionis quidem, quæ eſt ex-
              <lb/>
            tra humidum, per rectam r l deorſum; </s>
            <s xml:space="preserve">figuræ autem, quæ
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            in humido, per rectam o l ſurſum. </s>
            <s xml:space="preserve">non manet igitur flgu-
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            ra; </s>
            <s xml:space="preserve">ſed partes eius, quæ ſuntad h, deorſum ferẽtur; </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">quæ
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            ad e ſurſum. </s>
            <s xml:space="preserve">atque hoc ſemper erit, donec f t ſecundum
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            perpendicularem fiat.</s>
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            <note position="right" xlink:label="note-0027-01" xlink:href="note-0027-01a" xml:space="preserve">A</note>
            <figure xlink:label="fig-0028-01" xlink:href="fig-0028-01a">
              <image file="0028-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/4E7V2WGH/figures/0028-01"/>
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        <div type="section" level="1" n="20">
          <head xml:space="preserve">COMMENTARIVS.</head>
          <p>
            <s xml:space="preserve">ITAQVE figura, quæ extra humidi ſuperficiem,
              <lb/>
              <anchor type="note" xlink:label="note-0028-01a" xlink:href="note-0028-01"/>
            axem habet in perpendiculari per _k_.</s>
            <s xml:space="preserve">]</s>
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            <note position="left" xlink:label="note-0028-01" xlink:href="note-0028-01a" xml:space="preserve">A</note>
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          <p style="it">
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              <emph style="sc">D_vcatvr_</emph>
            enim b c, quæ ſecet lineam n k in m: </s>
            <s xml:space="preserve">ipſa uero
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            n k circunferentiam a b c d ſecet in g. </s>
            <s xml:space="preserve">eodem modo, quo ſupra, de-</s>
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