Baliani, Giovanni Battista, De motu naturali gravium solidorum, 1638

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              <s id="s.000215">PROPOSITIO XVII. PROBL. IX.
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            <subchap1>
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                <s id="s.000216">Dato plano declinante, super quo grave descendat, &
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                dato alio plano minus declinante, in hoc reperire
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                punctum, quo perveniat mobile eo tempore, quo
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                pertransit dictum planum magis declinans.
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                </s>
              </p>
            </subchap1>
            <p>
              <s id="s.000217">Sint plana AB, AC quorum AC minus inclinatum.
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              </s>
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              <s id="s.000218">Oportet in AC reperire punctum, quo grave perveniat,
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              quando pervenit in B.
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              </s>
            </p>
            <p>
              <s id="s.000219">Fiat ut AC ad AB ita AB ad AD, & dico D esse punctum
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              quaesitum. </s>
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            <p>
              <s id="s.000220">Quoniam ut AC ad AD ita est quadratum AC ad quadra-
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              tum AB
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              , & ut AC ad AD ita quadratum temporis
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              AC ad quadratum temporis AD
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              , ergo ut quadratum A
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              C ad quadratum AB, ita quadratum temporis AC ad
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              quadratum temporis AD
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              , Unde AC ad AB ut tempus
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              AC ad tempus AD
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              , sed ut AC ad AB, ita tempus A
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              C ad tempus AB
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              , ergo tempora AB, AD, sunt aequa-
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              lia. </s>
              <s id="s.000221">Quod, &c. </s>
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            <p type="margin">
              <s id="s.000222">
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              Per 19.
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              sexti.
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              </s>
              <s id="s.000223">
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              Per cor.
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              7. hujus.
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              </s>
              <s id="s.000224">
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              Per 11.
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              Quinti.
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              </s>
              <s id="s.000225">
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              Per 22.
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              sexti.
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              </s>
              <s id="s.000226">
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              Per 11.
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              hujus.
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              </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
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