Schott, Gaspar, Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet. , 1657
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              minimùm vnciarum vnius pedis, (eſt vncia pars duodecima pe­
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              dis) ita vt terminus ad quem in fine milliaris ſit vicinior centro
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              Terræ quatuorvncijs, quàm terminus à quo; &p oſt alterum mil­
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              liare alijs quatuor vncijs ſit vicinior, & ſic deinceps ſemper, eſt­
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              que hæc regula à
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              recepta tanquam Axioma hydra­
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              gogicum. </s>
              <s>Sed de hac re fusè agemus in Pantometro noſtro
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              Kircheriano lib. 9. vbi agemus ex profeſſo de Hydragogia & li.
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              bellatione aquarum; & in Mechanica Vniverſali. </s>
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              Aqua non
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              poteſt decur­
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              rere per ſpa­
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              tium æqui­
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              libratum.
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              CAPVT II.
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              DE
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              Proprietatibus Aquæ fluentis per
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              ſiphones.
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              <s>QUamvis in Machinis noſtris Hydro-pnevmati­
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              cis, Parte 2. indifferenter & pro eodem fumamus no­
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              men ſiphonis, & tubi, pro fiſtula ſcilicet, per quam
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              aqua fluit, ſive recta illa ſit, ſive curva; hîc tamen,
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              maioris diſtinctionis gratia, ſiphonem à tubo diſtinguimus. </s>
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              Eſ igitur Siphon nihil aliud quàm tubus inflexus. </s>
              <s>Huius variæ
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              ſunt ſpecies, vt ſequitur. </s>
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              Siphon quid
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              Propoſitio I.
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              Siphonis varias diviſiones aſſignare.
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              <s>SIphon igitur, ſeu tubus in flexus, dividitur variè, & habet diver­
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              ſas figuras, vt apparet in appoſitis ſchematiſmis. </s>
              <s>Alius enim
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              dicitur ſiphon erectus, alius in verſus, aliusmixtus, alius æquali­
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              um, alius in æqualium crurium.
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              Siphonis
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              ſpecies va­
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              ria.
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              Siphon ere­
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              ctus.
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              <s>Siphon erectus eſt, cuius omnia crura ſurſum ſunt. </s>
              <s>Huius­
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              modi ſunt ſeptem priores, & vltimus ex hîc appoſitis. </s>
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              Siphon in­
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              verſus.
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              <s>Siphon inverſus eſt, cuius omnia crura deorſum ſunt. </s>
              <s>Hu­
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              iusmodi ſuntijdem, ſi inver ſi intelligantur, hoc eſt, ſi B ſurſum,
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              C & A deorſum ſpectent. </s>
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              Siphon mi­
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              xtus.
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              <s>Siphon mixtus eſt, cuius crura partim ſurſum, partim de­
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              orſum ſunt. </s>
              <s>Huiuſmodi ſunt tres penultimi ex appoſitis, ſeu 8. 9.
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              & 10. </s>
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