Gravesande, Willem Jacob 's
,
Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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PHYSICES ELEMENTA
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In hoc caſu, ſi unumquodque pondus per ſuam diſtantiam
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multiplicetur, producta erunt æqualia. </
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<
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præcedenti experimento.</
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<
s
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dere omnia ponderantur.</
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<
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3.</
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<
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qualia; </
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">in breviori lanx ſuſpenditur: </
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<
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xml:space
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">longiſſimum in partes æ-
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">TAB. VIII.
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fig. 3.</
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quales dividitur, poſito diviſionum initio in centro motus;
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nores iterum dividuntur. </
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<
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in prima diviſione majori æquiponderet cum ſemiliberâ lan-
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ci impoſitâ: </
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pondus ſtatim memoratum per longitudinem brachii longi-
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oris movetur, donec detur æquilibrium; </
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<
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inter pondus & </
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<
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">centrum, ſemi librarum numerum denotant,
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quas corpus ponderat; </
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nus etiam pondus quodcunque adhiberi poteſt quo minores
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differentiæ inter corporum pondera determinari queunt.</
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<
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">Eodem etiam nititur fundamento bilanx fallax, cujus nem-
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pe brachia ſunt inæqualia.</
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<
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4.</
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<
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">Libræ ſæpius memoratæ duæ lances, ponderis inæqua-
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lis, ut detur æquilibrium, applicantur ab una parte cente-
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fig. 1.</
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fimæad alteram nonageſimæ quintæ diviſioni. </
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pondera dentur quæcumque, quæ ſint inter ſe ut 19 ad
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20, & </
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">illud primæ lanci, hoc vero ſecundæ, imponatur æ-
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quiponderabunt.</
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<
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unico pondere ad aliam partem, poſſunt æquiponderare. </
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quiritur, ut productum hujus ponderis, per ſuam diſtantiam
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a centro, æquale ſit ſummæ productorum omnium aliorum
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ponderum, ſingulatim unumquodque per ſuam diſtantiam a
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centro multiplicatorum.</
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<
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5.</
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<
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fig. 5.</
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