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

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            <pb xlink:href="051/01/050.jpg" pagenum="19"/>
            <p type="margin">
              <s>
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                <emph type="italics"/>
              Attractiva
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              vis ex appet
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              itu vacui
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              vel replen­
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              di, vel fu­
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              giendi ori­
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              tur in Ma­
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              chinis hy­
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              dro-pnev­
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              maticis.
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              </s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              Protheoria I.
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              </s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              §. I.
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              </s>
            </p>
            <p type="main">
              <s>
                <emph type="center"/>
              Hero Alexandrinus Vacuum in aëre & aqua
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              diſseminatum agnoſcit.
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              </s>
            </p>
            <p type="main">
              <s>HEro Alexandrinus, ſimul Spiritalium Magiſtrum agens, ſi­
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                <arrow.to.target n="marg57"/>
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              mul Democritici,
                <expan abbr="Epicureiq́ue">Epicureique</expan>
              Philoſophi perſonam, prio­
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              rem de Vacuo ſententiam doctè non minùs quàm fusè explicat,
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              atque tuetur, in Præfatione Libelli ſui de Pnevmaticis ſeu Spi­
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              ritalibus, vbi ait
                <emph type="italics"/>
              : Alij enim vnivërsè nullum omnino vacuum eſſe
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              affirmant; alij coacervatum quidem naturâ nullum eſſe vacuum, ſed
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              ſecundùm exiguas partes diſſeminatum in aëre, humido, & igne, alijsque
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              corporibus; quibus maximè aſſentiri convenit.
                <emph.end type="italics"/>
              </s>
              <s>Vacuum coacerva­
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              tum veteres vocabant
                <foreign lang="grc">ἀ
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                ν</foreign>
              , diſſeminatum verò
                <foreign lang="grc">παρεσπα
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                μένον</foreign>
              , vt
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              notat Petrus Gaſlendus in Philoſophia Epicuri; à quo Epicuro
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              Hero ſontentiam ſuam mutuatus eſt. </s>
              <s>
                <foreign lang="grc">Αλλὰ μὲν</foreign>
              , inquit Epicurus
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              Epiſtola ad
                <expan abbr="Herodotũ">Herodotum</expan>
              ,
                <foreign lang="grc">καὶͅ τὸ πᾱν ἐσὶ πη̄ μέν Σω̄μα, πῃ̄ δὲ χενὸν</foreign>
                <emph type="italics"/>
              vniverſum
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              autem partim quidem Corpus, partim verò inane eſt.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="margin">
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                <emph type="italics"/>
              Hero vacu­
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              um admit­
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              tit in aëre
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              & aqua diſ­
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              ſeminatum
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              </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg58"/>
                <emph type="italics"/>
              Epicuriu
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              vacuum ad­
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              mittit.
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              </s>
            </p>
            <p type="main">
              <s>Suam porrò de vacuo ſententiam Hero tot probat rationi­
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              bus & experientijs, vt demonſtratam exiſtimet, easque dignas
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              cenſuit Marinus Merſennus, quas Hydraulicis ſuis præmitteret
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                <arrow.to.target n="marg59"/>
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              Phœnomenis. </s>
              <s>Ac principio quidem oſtendit Hero. </s>
              <s>
                <emph type="italics"/>
              Vaſa, quæ
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              multis vacua videntur,
                <emph.end type="italics"/>
              eò quòd nullum in ijs viſibile deprehen­
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              dunt Corpus,
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              non eſſe vacua, vt putant, ſed aëre plena.
                <emph.end type="italics"/>
              </s>
              <s>Quod­
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              quidem patet ex eo, inquit Hero, quòd
                <emph type="italics"/>
              ſi vas, quod vacuum vide­
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              tur, quis inverſum in aquam depreſſerit, rectumque ſervarit, aqua in
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              ipſum non ingredietur, quamvis totum occultatum fuerit.
                <emph.end type="italics"/>
              </s>
              <s>Vtique
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              non alia de Cauſa, niſi quia aër, cum Corpus ſit, & totum vas
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              occupet, non permittit aquam ingredi, vt ipſemet ſubjungit. </s>
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              Idem patetin phialis vitreis, ollis, alijsque vaſis, ſi inverſa aquis
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              immergantur: non enim niſi difficulter admodum demergun­
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              tur; & dum retrahuntur, latera interiora habent ſicca; non ob
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              aliud profectò, niſi quia incluſus aër ingreſſum prohibuit aquæ. </s>
            </p>
            <p type="margin">
              <s>
                <margin.target id="marg59"/>
                <emph type="italics"/>
              Vaſa ina­
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              nia aëre eſſe
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              plena, vari­
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              is probatur
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              experimen­
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              tis.
                <emph.end type="italics"/>
              </s>
            </p>
            <p type="main">
              <s>Quòd ſi prædictorum Vaſorum inverſorum aquis immer­
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              ſorum
                <emph type="italics"/>
              fundum quis perforet, aqua quidem per os demerſum in ipſa in­
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              gredietur, aër verò per foramen exibit,
                <emph.end type="italics"/>
              adeo manifeſtè, vt non </s>
            </p>
          </chap>
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