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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tur, actio erit bis dupla, aut ter tripla, id eſt, ſextupla. </
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<
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datis numeris in ratione intenſitatum, & </
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">aliis in ratione ſpa-
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tiorum percurſorum, pro ſingulis potentiis intenſitas per ſpa-
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tium ab obſtaculo percurſum multiplicetur, producta ha-
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bebunt quæſitam compoſitam rationem.</
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<
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xml:space
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">Si numeri dentur, qui actiones potentiarum variarum de-
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xml:space
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ſignant, erunt hi ut producta obſtaculorum per ſpatia, ergo
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ſi ſinguli ex datis numeris per ſpatium ab obſtaculo ſuo per-
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curſum dividantur, quotientes erunt ut ipſa obſtacula.</
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<
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">Ideo eo majora ſunt obſtacula, quo actiones ſunt majo-
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res, & </
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">ideſt, obſtacula ſunt in ratio-
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xml:space
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ne compoſita directæ actionum, & </
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ſorum.</
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<
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">Si numeri qui exprimunt producta obſtaculorum per
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ſpatia, id eſt, qui potentiarum actiones exprimunt, ſinguli
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dividantur per numeros, qui obſtacula deſignant, quotientes
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erunt ut ſpatia, quæ ergo ſunt directe ut actiones, & </
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<
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ſe ut obſtacula.</
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<
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">Potentiarum actiones ſunt æquales, ſi ſpatia percurſa fue-
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rint in ratione inverſa obſtaculorum aut intenſit atum poten-
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tiarum . </
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xml:space
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rat, in tantum reſpectu ſpatii percurſi ſuperatur. </
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cula fuerint ut octo & </
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traque actio exprimetur per numerum viginti quatuor .</
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<
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.</
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hibeantur, Terram verſum feruntur.</
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<
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. 1.</
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<
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2.</
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vocatur corporis pondus.</
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