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

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              igitur nota ſit ratio aquæ fluentis per CD, ad aquam fluentem
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              per BG, & per GA partes; nota erit ratio eiuſdem ad totam
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              fluentem per AB. </s>
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              Propoſitio IX. Problema IV.
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              Datis foraminibus eiuſdem vaſis, quorum vnum ſu­
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              perius, alterum inferius, inter easdem parallelas perpen­
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              diculares, reperire rationes aquarum.
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            <figure id="id.051.01.196.1.jpg" xlink:href="051/01/196/1.jpg" number="82"/>
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              <s>DEntur foramina AB, CD, inter parallelas
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              easdem perpendiculares AC, & BD,
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              ;
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              venanda ratio aquarum ex eis, æquali tem­
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              pore, fluentium. </s>
              <s>Concipiatur BC, tan­
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              quam foramen inter easdem parallelas. </s>
              <s>Quo­
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              niam igitur nota eſt ratio aquarum fluentium
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              ex CD, & ex CB, per Propot. 7. hujus Ca­
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              pitis; item ex CB, & BA, per eandem Pro­
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              poſitionem ſeptimam, nota erit pariter ratio aquarum fluenti­
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              um per CD, & AB. </s>
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              Propoſitio X. Problema V.
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              Datis foraminibus eiuſdem vaſis, quorum vnum ſu­
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              perius, alterum inferius, non inter eaſdem parallelas,
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              repire rationes aquarum.
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              <s>DAta ſint foramina AD, EH; oporte­
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              atque reperire rationes aquarum per il­
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              la æquo tempore fluentium. </s>
              <s>Duc hori­
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              zontales HI, EK, & producta DB in L,
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              concipiatur IL tanquam foramen inter
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              eaſdem parallelas cum AD; & quæratur
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              ratio aquarum per AD, IL fluentium, per
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              Propoſit. 9. hujus Capitis, & ſit ut M ad N. </s>
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              Item quæratur ratio IL ad EH, per Pro­
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              poſit. 2. hujus Capitis, & ſit ut N ad O. </s>
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              Dico, M ad O eſſe rationem aquarum per
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              AD, & HE fluentium. </s>
              <s>Quoniam enim ut M ad N, ita eſt AD
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              ad IL; & ut N ad O, ita IL ad EH, per conſtructionem: Erit </s>
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