Schott, Gaspar, Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet. , 1657

Page concordance

< >
Scan Original
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
< >
page |< < of 203 > >|
    <archimedes>
      <text>
        <body>
          <chap>
            <p type="main">
              <s>
                <pb xlink:href="051/01/122.jpg" pagenum="91"/>
              extremæ aquæ alterius cruris, BF, ſeu potius EF, ſed demiſſior;
                <lb/>
              ergo quando ſiphon ſive æqualium, ſive inæqualium crurium,
                <lb/>
              aquȧ plenus, & utrimque compreſſis digitis obturatus, imponi­
                <lb/>
              tur duobus prædictis vaſis aquȧ plenis, quorum unius ſuperficies
                <lb/>
              ſuprema aquæ altior eſt, quàm alterius, effluitque aqua intra vas
                <lb/>
              demiſſius, eò quòd alterius ſuperficies ſuprema altior eſt, & ad
                <lb/>
              decliviorem locum tendit, nititurque ſuperficiem ſuam adæ­
                <lb/>
              quare ſuperficiei alterius vaſis humilioris; ergo inquam, quando
                <lb/>
              hoc contingit, aqua ex vaſe altiore aſcendit naturaliter & inna­
                <lb/>
              to appetitu ad ſiphonis ſuperiorem partem, indeque deſcendit
                <lb/>
              intra vas humilius; naturaliter enim aquæ partes altiores fluunt
                <lb/>
              ad loca decliviora. </s>
              <s>Deinde ſi illa eſt cauſa adæquata, cur quan­
                <lb/>
              do ſiphon ina qualium crurium repletur aquâ, & ſecundùm
                <lb/>
              longius crus immergitur aquæ, ſecundùm brevius verò extra
                <lb/>
              in aëre relinquitur, cur inquam, non effluit aqua per externum,
                <lb/>
              ubi nullum eſt impedimentum præter aërem? </s>
              <s>poteſt enim aqua
                <lb/>
              per externum fluere ad loca decliviora, & fundare unam conti­
                <lb/>
              nuam ſuperficiem diſtinctam à ſuperficie, quæ in vaſe eſt; &
                <lb/>
              præterea inclinationem habet ad deſcendendum, non verò ad
                <lb/>
              aſcendendum. </s>
              <s>Præterea, cur quando ſiphon inæqualium cru­
                <lb/>
              rium repletur aqua, & tenetur inverſus in aëre, non effluit aqua
                <lb/>
              ex crure breviori, cum ejus aqua plùs diſtet à centro Terræ,
                <lb/>
              quàm aqua cruris longioris? </s>
              <s>Alia ergo cauſa adſignari debet, cur
                <lb/>
              aqua cruris longioris, ſeu externi, ſeu interni, vincataquam cru­
                <lb/>
              ris brevioris; quam paulò poſt dabimus. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg175"/>
                <emph type="italics"/>
              Heronis opi­
                <lb/>
              nio exami­
                <lb/>
              natur.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>Qui tamen Heronis ſententiam tueri volet, ad has ratio­
                <lb/>
              nes in contrarium allatas reſpondere poterit, ut ſequitur. </s>
              <s>Nem­
                <lb/>
              pe ad primam, aquam cruris brevioris non aſcendere naturali­
                <lb/>
              ter, ſed tractam ab aqua cruris longioris AD, ſeu CD, ad va­
                <lb/>
              cuum in ſiphone impediendum, & ad tuendam continuitatem
                <lb/>
              partium aquæ aqua enim cruris longioris AD, ſeu CD, deſcen­
                <lb/>
              dit naturaliter (utpote tendens ad locum decliviorem) ſecum­
                <lb/>
              que trahit reliquam aquam, quia ſuprema ſuperficies vaſis A,
                <lb/>
              cum qua continuatur aqua ſiphonis, & vaſis B, eſt declivior, </s>
            </p>
          </chap>
        </body>
      </text>
    </archimedes>
Impressum