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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CORPORUM FIRMORUM.
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<
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<
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ſit c. </
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<
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">invenietur ſoliditas corporis generati = {bcr/3}. </
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<
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tatis in axe CD diſtat a puncto D = {7/16} D C = {7/16}b. </
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<
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tum ex gravitate erit {7bbcr/48}. </
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<
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erit Cohærentia = 8 a
<
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2.</
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<
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<
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<
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">Sit ſolidum Hyperbolicum ABCE, in quo
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ſegmentum LIKM baſi parallelum, erit Cohærentia ſolidi ABC
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ad eam ſegmenti LIKMC, utirectangulumex GC, GH ad rectan-
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gulum ex NC, NH.</
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<
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">Sit C H axis Hyperbolæ primus, quo ducto erit Cohærentia
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baſeos A B F E ad Cohærentiam baſeos LIKM, in ratione dupli-
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cata E A ad LI. </
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<
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xml:space
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">ſed eſt quadratum E A ad quadratum LI, uti re-
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ctangulum ex abſciſſa G C X per G H, ad rectangulum ex abſciſſa-
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N C in N H. </
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<
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<
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">De Hemisphæriis.</
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<
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<
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<
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xml:space
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">Momentum Hemisphærii inſcripti cylindro,
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baſi affixa parieti, eſt dimidium momenti ipſius Cylindri habentis
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eandem baſin & </
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<
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">altitudinem.</
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<
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xml:space
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">& </
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<
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xml:space
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">peripheria circuli, c. </
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<
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xml:space
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">erit
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ipſa baſis = {cr/2} hæc multiplicata per A E = r. </
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<
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xml:space
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">dat ſoliditatem Cylin-
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dri circumſcripti C A E = {crr/2}, cujus centrum gravitatis eſt in me-
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dio ſive in {1/2} r. </
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<
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xml:space
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/4}. </
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<
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tem ſoliditas Cylindri ad eam hemisphærii, uti 3 ad 2, </
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