Musschenbroek, Petrus van
,
Physicae experimentales, et geometricae de magnete, tuborum capillarium vitreorumque speculorum attractione, magnitudine terrae, cohaerentia corporum firmorum dissertationes: ut et ephemerides meteorologicae ultraiectinae
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bus altitudines Aquæ erant in ratione inverſa diametrorum.</
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<
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per fuerunt æquales inter ſe.</
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<
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<
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">Quando duo ultima inſtituebantur Experimenta, Aqua
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intra ſpecula adſcendit non æquabiliter, ſed motu & </
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<
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">ſuperſicie ad-
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modum inæquabili, adſcendit enim ſub forma dentium ſerræ, nunc
<
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uno dente aſſurgente, quaſi ad altitudinem 1 vel 2 linearum; </
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<
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">qui tum
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paulum videtur quieſcere, nunc dentealiquo vicino aſſurgente; </
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<
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rim incipit dens prior iterum aſſurgere; </
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<
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xml:space
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">ex quo dein novi oriun-
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tur dentes, quorum nonnulli ſuam Aquam communicant vicinis,
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nonnulli non, relinquendo in principio ſpatium intermedium non
<
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humectatum, haud aliter ac ſi Aqua hinc inde ſordes deponeret;
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</
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<
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">ejuſmodi autem loca conſpiciuntur plurima. </
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">Inæqualis Aquæ ad-
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ſcenſus pendet 1°. </
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">a reſiſtentia particularum aërearum, quæ inter ſpe-
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cula interceptæ ſunt, nec facile avelluntur ab eorum ſuperficiebus,
<
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aliæ tamen facilius aliis averruncantur, unde iſta inæqualitas inſtar
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dentium, quibus Aqua aſſurgit. </
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">ſuperficierum vitri ſcabrities
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quoque cauſa eſt, cum enim vitrum ſit vallibus montibuſque exa-
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ſperatum, valles vero magis a ſe diſtent, quam montr-
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culi, attrahetur Aqua minus a remotioribus vallibus, quam
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a ſibi proximis montibus: </
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<
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">hiſce vero ſe contingentibus, impeditur
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Aquæ acceſſus, unde loca quædam in initio non humectari con-
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ſpiciuntur: </
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oculo, quæ vitro adhærentes hinc inde, ſua vi repellente adſcen-
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ſum Aquæ prohibent.</
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<
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nem elevati fluidi & </
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<
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">ſpeculorum diſtantias obſervavit, verum quia
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non menſuravit altitudinem Fluidi elevati ſupra ſuperficiem Fluidi
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ſtagnantis, repetenda duxi hæc Experimenta; </
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ſpiritu Vini: </
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Vino, Aceto, Spiritu vini; </
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men dubito, quin idem ſit ſucceſſus futurus cum omnibus liquori-
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bus tenuioribus.</
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