Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670
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              aqua operatur, veluti in ſiphone collocata fuiſſet. </s>
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              Cap. 3. flui­
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              dum in ſuo
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              toto quie­
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              ſcens pon­
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              derat.</s>
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              Cap. 3. flui­
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              dum in ſuo
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              toto quie­
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              ſcens pon­
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              derat.</s>
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              PROP. XXIV.
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              Aqua in ipſamet aqua demerſa undiquè comprimitur ab
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              ambiente aqua, & vtraque grauitatem exercet.
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              <s id="s.000272">INtra vas ABCD aqua plenum intelligatur priſma
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              aqueum FGHE, ductiſque planis FL, & GM pa­
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              rallelis horizonti. </s>
              <s id="s.000273">Dico, quòd aqua FH vndique pre­
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              mitur ab ambiente aqua FILKG, & vtraque pondus
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              grauitatemque exercet. </s>
              <s id="s.000274">Quia aqua FH cum aquą
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              ambiente ſiphonem AKD conſtituit, in quo fluidum
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              ſibi homogeneum agitari poteſt, & quieſcit nihilo­
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              minùs; ergo vna pars fluidi AK
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              æquilibratur, proindequè æquè
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              ponderat, ac pars reliqua latera­
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              lis IC, portio verò aquæ FH licèt
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              motu careat, ſitque indifferens
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              ad motum ſursùm, & deorsùm,
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              haud inferre licet eam non exer­
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              cere vim ſuæ grauitatis vnà cum tota aqua ambi­
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              ente, quia in ſiphonis brachio AK aquæ FH ſu­
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              prema facies FE deorſum impelli, & comprimi de­
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              bet ab incumbente aqua AE, pariterque infimą
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              illius facies GH ſursùm impelletur à ſubiecta a­
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              qua GK non virtute propria, ſed eius quam exercet
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              pondus aquæ collateralis IM; porrò nedum aqua FH
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              impellitur ſurſum ab aqua ſubiecta BH, ſed etiam, vt
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              experientia conſtat, impulſionem, &
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