Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

List of thumbnails

< >
31
31 (10)
32
32
33
33 (11)
34
34
35
35 (12)
36
36
37
37 (13)
38
38
39
39 (14)
40
40
< >
page |< < (22) of 213 > >|
DE IIS QVAE VEH. IN AQVA.
    <echo version="1.0RC">
      <text xml:lang="la" type="free">
        <div type="section" level="1" n="38">
          <p>
            <s xml:space="preserve">
              <pb o="22" file="0067" n="67" rhead="DE IIS QVAE VEH. IN AQVA."/>
            dum eam, quæ per g ſurſum eleuabitur. </s>
            <s xml:space="preserve">non igitur manebit
              <lb/>
            portio ſic inclinata, nec conuertetur ita, ut axis ad ſuperfi-
              <lb/>
            ciem humidi ſit perpendicularis: </s>
            <s xml:space="preserve">quoniam quæ ex parte 1
              <lb/>
              <anchor type="note" xlink:label="note-0067-01a" xlink:href="note-0067-01"/>
            deorſum; </s>
            <s xml:space="preserve">quæ uero ex parte a ſurſum ferentur, ut ex iam de
              <lb/>
            monſtratis apparere poteſt. </s>
            <s xml:space="preserve">Quòd ſi axis cum ſuperficie
              <lb/>
            humidi fecerit angulum minorem angulo b, ſimiliter de-
              <lb/>
              <anchor type="note" xlink:label="note-0067-02a" xlink:href="note-0067-02"/>
            monſtrabitur, nõ manere portionem, ſed inclinari, donec
              <lb/>
            utique axis cum ſuperficie humidi faciat angulum angulo
              <lb/>
            b æqualem.</s>
            <s xml:space="preserve"/>
          </p>
          <div type="float" level="2" n="1">
            <figure xlink:label="fig-0064-01" xlink:href="fig-0064-01a">
              <image file="0064-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/4E7V2WGH/figures/0064-01"/>
            </figure>
            <note position="left" xlink:label="note-0064-01" xlink:href="note-0064-01a" xml:space="preserve">A</note>
            <note position="right" xlink:label="note-0065-01" xlink:href="note-0065-01a" xml:space="preserve">B</note>
            <note position="right" xlink:label="note-0065-02" xlink:href="note-0065-02a" xml:space="preserve">C</note>
            <note position="right" xlink:label="note-0065-03" xlink:href="note-0065-03a" xml:space="preserve">D</note>
            <note position="right" xlink:label="note-0065-04" xlink:href="note-0065-04a" xml:space="preserve">E</note>
            <figure xlink:label="fig-0066-01" xlink:href="fig-0066-01a">
              <image file="0066-01" xlink:href="http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/4E7V2WGH/figures/0066-01"/>
            </figure>
            <note position="right" xlink:label="note-0067-01" xlink:href="note-0067-01a" xml:space="preserve">F</note>
            <note position="right" xlink:label="note-0067-02" xlink:href="note-0067-02a" xml:space="preserve">G</note>
          </div>
        </div>
        <div type="section" level="1" n="39">
          <head xml:space="preserve">COMMENTARIVS.</head>
          <p>
            <s xml:space="preserve">QVARE quadratum b d magis excedit quadratum
              <lb/>
              <anchor type="note" xlink:label="note-0067-03a" xlink:href="note-0067-03"/>
            f q, quàm b c quadratum: </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">idcirco linea f q minor eſt,
              <lb/>
            quàm b c: </s>
            <s xml:space="preserve">itemq; </s>
            <s xml:space="preserve">f minor quam b r.</s>
            <s xml:space="preserve">] _Quoniani exceſſus, quo_
              <lb/>
            _quadratum b d excedit quadratum b c ad quadratum b d minorem_
              <lb/>
            _proportionem habet, quàm exceſſus, quo quadratum b d excedit qua_
              <lb/>
            _dratum f q, ad idem quadratum: </s>
            <s xml:space="preserve">erit ex octaua quinti exceſſus, quo_
              <lb/>
            _quadratum b d excedit quadratum b c, minor quàm exceſſus, quo ex_
              <lb/>
            _cedit quadratum f q. </s>
            <s xml:space="preserve">ergo quadratum f q minus est quadrato b c: </s>
            <s xml:space="preserve">&_</s>
            <s xml:space="preserve">
              <lb/>
            _propterea linea f q minor linea b c. </s>
            <s xml:space="preserve">Sed f q ad f eandem proportionẽ_
              <lb/>
            _habet, quam b c ad b r; </s>
            <s xml:space="preserve">utraque enim utriuſque ſeſquialtera est. </s>
            <s xml:space="preserve">cum_
              <lb/>
              <anchor type="note" xlink:label="note-0067-04a" xlink:href="note-0067-04"/>
            _igitur f q ſit minor b c, & </s>
            <s xml:space="preserve">f ipſa b r minor erit_.</s>
            <s xml:space="preserve"/>
          </p>
          <div type="float" level="2" n="1">
            <note position="right" xlink:label="note-0067-03" xlink:href="note-0067-03a" xml:space="preserve">A</note>
            <note position="right" xlink:label="note-0067-04" xlink:href="note-0067-04a" xml:space="preserve">14. quinti</note>
          </div>
          <p>
            <s xml:space="preserve">Et propterea k r ad ſ y maiorem habet, quàm dimidium
              <lb/>
              <anchor type="note" xlink:label="note-0067-05a" xlink:href="note-0067-05"/>
            ipſius k r ad ψ b.</s>
            <s xml:space="preserve">] _Est enim k r ad ſ y, ut quadratum p s ad qua_
              <lb/>
            _dratum ſ y
              <unsure/>
            : </s>
            <s xml:space="preserve">& </s>
            <s xml:space="preserve">dimidium lineæ K r ad lineam ψ b, ut quadratum e ψ_
              <lb/>
            _ad quadratum ψ b_.</s>
            <s xml:space="preserve"/>
          </p>
          <div type="float" level="2" n="2">
            <note position="right" xlink:label="note-0067-05" xlink:href="note-0067-05a" xml:space="preserve">B</note>
          </div>
          <p>
            <s xml:space="preserve">Et s o minor quàm ψ b] _Est enim ſ y dupla ipſius ſ o._</s>
            <s xml:space="preserve"/>
          </p>
          <note position="right" xml:space="preserve">C</note>
          <p>
            <s xml:space="preserve">Et p h maior, quàm f.</s>
            <s xml:space="preserve">] _Nam p h eſt æqualis ſ ω, & </s>
            <s xml:space="preserve">r ψ_
              <lb/>
              <anchor type="note" xlink:label="note-0067-07a" xlink:href="note-0067-07"/>
            _ipſi f_.</s>
            <s xml:space="preserve"/>
          </p>
          <div type="float" level="2" n="3">
            <note position="right" xlink:label="note-0067-07" xlink:href="note-0067-07a" xml:space="preserve">D</note>
          </div>
          <p>
            <s xml:space="preserve">Habebit ergo tota portio ad eam, quæ eſt extra humi-
              <lb/>
              <anchor type="note" xlink:label="note-0067-08a" xlink:href="note-0067-08"/>
            dum proportionem eandem, quam quadratum b d ad qua
              <lb/>
            dratum f q.</s>
            <s xml:space="preserve">] _Cum pars demerſa ad totam portionem ita ſit, ut_
              <lb/>
            _exceſſus, quo quadratum b d excedit quadratum f q ad b d quadratu
              <unsure/>
            :_</s>
            <s xml:space="preserve"/>
          </p>
        </div>
      </text>
    </echo>