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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INTRODUCTIO AD COHÆRENTIAM
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erit ex natura Parabolæ,
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:</
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eſt
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ad
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, uti circulus radii B C ad circulum radii D E, hoc eſt uti
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baſis B F ad baſin D G. </
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rentiam in D G. </
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ad E A. </
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L M. </
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ad borizontem perpendicularis, ſecetur plano borizontali D C K L,
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erit Cobærentia baſeos B F G N, ad Cobærentiam ſegmenti D C K L
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in ratione ſubduplicata diſtantiæ A E, ad C E a vertice.</
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ſuarum magnitudinum, ſed eſt planum B F G N ad planum D K L,
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uti eſt B F ad D K, quia K L ponitur æquale F G: </
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bolæ eſt B F ad D K uti A E ad E C. </
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baſeos ad Cohærentiam ſegmenti D K L, uti A E ad E C.</
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lacunari affixa, axis A F borizonti perpendicularis, ſeceturque
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plano borizontali E C D. </
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ratione baſeos A O B ad eandem {A O B X E F X E F/A F X
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nalyticis d. </
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