Gassendi, Pierre
,
De proportione qua gravia decidentia accelerantur
,
1646
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ex G in Q, non nonupla eiuſdem, ſed tripla: & ac
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quiſita ex I in B, non ſexdecupla, ſed quadrupla eſt:
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quatenus quidem experiundo obſeruare licuit, con
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ſtitutam pilam ſupra planum libellatum, appoſitum
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que ad M, ad O, ad Q, ad B, dum percuteretur, pro
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pellereturque à globis incurrentibus, aſſequi velocita
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tem, excurrereque, non iuxta numeros quadratos,
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quales ſunt ſpatiorum CM, EO, GQ, IB; ſed iuxta
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radices ipſorum, qualia ſunt & tempora, vnum, duo,
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tria, quatuor. </
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intelligere percuſſionem quoque à re ſecundum per
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pendiculum cadente factam, ſequi rationem non
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quadratorum, ſeu ſpatiorum, ſed radicum, ſeu tem
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porum; atque ita, quò cadens graue vehementiùs
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feriat duplò, triplò, quadruplò, cadere debere ex al
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titudine non duplò, triplò quadruplò; verùm, quadru
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plò, nonuplò, atque ſexdecuplò maiore. </
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De Experimento in Bilance facto ac aliud reuera probante,
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quàm velocitates eſſe ſicut spatia.
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<
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">XXIII. Verumtamen, hiſce dimiſſis, acceden
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dum eſt ad ſecundam, peculiaremve experientiam,
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cui totam ſcientiam ſuper-exſtruis, & de qua in hunc
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modum præfaris.
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Atque, vt quam tibi promiſi expe
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rientiam, cum fœnore etiam exhibeam, adiungam & aliam,
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à nullo mortalium hactenus obſeruatam, quæ & priorem
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perfectißimè includat, & non rationem ſolùm, quâ celeritas
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in naturali deſcenſu grauium augetur, ſed eiuſdem quoque
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celeritatis pene incredibilem modum, ac menſuram, exactiſ-
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