Gravesande, Willem Jacob 's
,
Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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MATHEMATICA. LIB. I. CAP. XVI.
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perimenti ex ſæpius memoraton. </
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omnes alii caſus potentiarum obliquarum, quæ excogitari
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poſſunt, etiam pertient.</
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<
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">LIBRI I. PARS III.</
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variatis.</
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<
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">Preſſiones contrariis preſſionibus deſtructas, & </
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<
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la immediatâ potentiæ actione translata, huc uſque
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conſideravimus. </
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xml:space
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miſſa & </
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<
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">in motu perſeverantia, agentes examinabimus;
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</
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<
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">hìc ut in omnibus Phyſicis ex Phænomenis ratiocinandum eſt,
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& </
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<
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<
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">Tres a Newtono traduntur, quibus omnia, quæ ad mo-
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tum pertinent, explicari poſſe credimus.</
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<
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I.</
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vendi uniformiter in directum, niſi quatenus a viribus im-
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preſſis cogitur ſtatum illum mutare.</
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vendi, unde niſi cauſâ extraneâ moveatur, in quiete ſem-
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per neceſſario manet.</
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<
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rectam lineam eadem cum velocitate continuare quotidia-
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nis Experimentis pleniſhme conſtat; </
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mutationem in motu fieri videmus niſi aliqua ex cauſa.</
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ſequitur, non mutatur niſi actione cauſæ extraneæ,</
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II.</
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