Heron Alexandrinus, Spiritali di Herone Alessandrino

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    <archimedes>
      <text>
        <body>
          <chap>
            <pb/>
            <p type="head">
              <s>Del vaſo di giuſta miſura.</s>
              <s> XLI.
                <lb/>
              </s>
            </p>
            <p type="main">
              <s>Fabrica del vaſo chiamato dicatometro, cioè di
                <lb/>
              giuſta miſura, quale empito di acqua, tutte le vol-
                <lb/>
              te poi che ſi riuerſa, ne mãda fuori quantità eguale.
                <lb/>
              </s>
            </p>
            <p type="main">
              <s>
                <emph type="italics"/>
              Sia vn vaſo tale AB,
                <emph.end type="italics"/>
                <figure number="53"/>
                <lb/>
                <emph type="italics"/>
              che habbia diuiſo il collo dal
                <lb/>
              tramezzo AB, e nel fondo
                <lb/>
              del vaſo ſia la palla C capa-
                <lb/>
              ce di quella quantità, che
                <lb/>
              voremo che ſi verſi; cacci-
                <lb/>
              ſi per il tramezzo vna can-
                <lb/>
              na ſottiliſſima DE, forata
                <lb/>
              inſieme con la palla, e nel-
                <lb/>
              la parte di ſotto della palla
                <lb/>
              ſia vn foro piccolo F, dal
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              quale ſi tiri vna canna FG
                <lb/>
              alla volta del manico del
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              vaſo, qual manico ſia buz-
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              zo, e forato inſieme con eſſa
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              canna; vicino al foro F, ſia
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              vn'altro foro L, che rieſchi
                <lb/>
              nel corpo del vaſo, & il
                <lb/>
              manico habbia lo ſpiraglio
                <lb/>
              H: Chiudendo dunque lo
                <lb/>
              ſpiraglio H, empiremo il va-
                <lb/>
              ſo di acqua per via di qual-
                <lb/>
              che buco, che dopo ſi ſerri,
                <lb/>
              ouero anco l'empiremo per
                <lb/>
              l'iſteſſa canna DE, e l'aria
                <lb/>
              ſi partirà per lo ſpiraglio
                <lb/>
              H.</s>
              <s> E' dunque chiara coſa
                <emph.end type="italics"/>
                <lb/>
              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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