Schott, Gaspar
,
Mechanica hydraulico-pneumatica. Pars I. Mechanicae Hydraulico-pnevmaticae Theoriam continet.
,
1657
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Propoſitio II. Phænomenon II.
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Salientes horizontales, & mediæ, ejuſdem tubi, co
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ſunt longiores, quò lumen tubi fuerit altius ſupra
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horizontem.
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>SIntin præcedenti diagrammate diverfi horizontes, OG, PS, </
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QT, RV &C. ſupra quos elevatus ſit tubus ABC; Dico ſali
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entem CHSTV (& idem intelligendum eſt de reliquis ſalienti
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bus horizontalibus, ac medijs) ſupra horizontem RV, eſſe
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longiorem quàm ſupra horizontem QT, & ſupra hunc longio
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rem quàm ſupra PS, & longiorem ſupra hunc, quàm ſupra OG. </
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Creſcit itaque eò magis ſalientium horizontalium ac mediarum
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longitudo, quo magis creſcit luminis tubi ſuper horizontem ele
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vatio. </
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>Si verò in ex ceſſiva altitudine orificium poneretur; cer
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tum eſt aquæ ecdromen uſque ad terminum conſtitutum flu
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xum non
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, ſed cum tempore in guttas, & tandem
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in aërem reſolutum iri, ut experientia docuit in Cuppula S. Petri
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interiori, ex quo ſcyphus plenus vino vel aqua effuſus ita evanuit
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in intermedio aëre, ut nullum prorſus
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nec quidem gut
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tarum in inferiori pavimento ijs, qui ſtudio id attendebant, ap
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paruerit, ut P. Kircherus mihi aſſeruit. </
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>Ex nubibus tamen de
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cidit guttatim in terram aqua, quia in magna copia & continua
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tæ decidunt guttæ. </
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Salientes eo
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longiores
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quò altiù
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foramen
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tubi.
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Annotatio I.
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QVanta verò ſit ſalientium in quavis tubi ſupra horizontem eleva
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tione longitudo, inveſtigandum eſt obſervatione, quam quilibet
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facilè poterit facere modo dicto Propoſitione præcedente. </
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<
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in ſuis Phænomenis Propoſit.
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XVI.
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proponit paucas ex multis in ſequen
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ti tabella, in quâ Prima Columna continet varias tubi pedalis, velpo
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tiùs luminis tubi, ſupra horizontem elevationes in pedibus, ita ut prima
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elevatio ſit unius pedis, ſecunda duorum pedum, &c: Secunda verò co
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lumna exhibet ſalientium longitudines in pedibus & digitis. </
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<
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