Gassendi, Pierre
,
De proportione qua gravia decidentia accelerantur
,
1646
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in iis, quæ dicuntur apertè. </
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Sed memineris totius ſummi ponderis ex vnius diametri
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altitudine eleuati, non eſſe in ſequentibus operationibus acci
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piendum duplum, triplum, quadruplum, &c. </
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ſus vltra æquilibrium aſſumendum eſſe duplum, triplum, qua
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druplum, &c. </
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<
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effectum, ad quem non pertinet æquilibrium.
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exiſtimâris id eſſe
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, donec ea tibi inſedit opi
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nio, vt ex totidem diametris totidem præcisè eleuaren
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tur pondera, præter æquilibrium, globo paria: nunc ta
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men, cùm videas nihil eſſe neceſſe adſtringi, neque ad
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diametrum, neque ad pondus (imò neque ad figuram
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globi, ſi modò corpus eiuſmodi ſit, quod lancem ex
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æquo circa medium afficiat) ſed liberum eſſe quamli
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bet altitudinem pro prima aſſumere, & quodlibet pon
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dus, quod ſummum ex ea attolletur pro pondere pri
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mo: conſtat tale pondus, quodcum que illud ſit, &
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æquilibrio quidem comprehenſo, germanam eſſe men
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ſuram eius impetus, qui exprimitur ex caſu à tali altitu
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dine; cùm ſi aliquid addatur tali ponderi, impetus ſit
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minor, ſi detrahatur aliquid, etiam ex æquilibrio, ſit
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maior. </
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<
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id
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">Quanquam & ſi perſtes putare detrahendum
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eſſe
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æquilibriũ
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, nihil erit quamobrem repugnem, aut
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quamobrem ipſe proptereà lucratus aliquid videaris,
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cùm eo detracto tam ex primo, quàm cæteris ponderi
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bus, quæ pondera ſuperfutura, ſunt pari progreſſione
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ſint conſequutura. </
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<
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">Nam in exemplo quidem tuo, v g.
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ſeu numeros 5.2, 10.4, 15.6, 21, 26.2, detracto æqui
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librio, ſeu comprehenſo habeas (quod tibi fortaſſis </
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