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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ſpiritu vini plena adhibita fuit, hujus accenſi alta & </
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ma omne ſpatium inter Verſorium Magnetemque implevit, arſit
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flamma, quam diu ſpiritus idoneum pabulum ſuppeditabat, quod
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majori copia ſubminiſtrabatur, ut diu obſervatio protraheretur, & </
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accuratius adnotari poſſet, an Verſorium a, b, eandem reſpiceret ſem-
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per plagam, an aliam: </
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obſervationis tempore, extinctâque flammâ penitus immotum man-
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ſit Verſorium: </
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<
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morant quoque Florentini in Ezperien. </
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<
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to. </
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<
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nec multum calet; </
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tandam eſſe ratus ſum, ut validius argumentum ex Experimento
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peti poſſet: </
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6. </
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ſata vi impetuoſi venti ex folle magno expreſſi, vitrum & </
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lum quodcunque intra momentum temporis liquefacit; </
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rigebatur, ut lineam rectam a Verſorio A B continuatam uſque ad
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Magnetem C ad angulum rectum ſecaret: </
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diano ſuo per attractionem Magnetis C deflexum erat, inter lam-
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padem O & </
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venti per flammam tranſeuntis Verſorium moveretur: </
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pas arſit, non mutata fuit Verſorii directio, ſed in abſolutâ per-
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manſit quiete.</
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gnete C ad Verſorium A B deferri, id a Meridiano ſuo detorquere,
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& </
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fluida, abſque ullo virium decremento, abſque ulla directionis mu-
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tatione tranſibunt per flammam denſiſſimam, calentiſſimam, cujus
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partes admodum ſolidæ infinitâ rapiditate moventur?</
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<
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ſorium illico antiquum appetet Meridianum, directum viribus a
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parte antica in ipſum agentibus: </
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tinuatum fuit Experimentum.</
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ctenus novit, ſua quippe tenuitate, duritie, celeritate omnia </
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