Borelli, Giovanni Alfonso
,
De motionibus naturalibus a gravitate pendentibus
,
1670
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dimus prop. 20. 21. & 204. partes æquales eiuſdem
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grauis ex ſui natura eadem velocitate fluere deorsùm
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debent, & deò ſuperior pari velocitate comprime
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re nitetur inferiorem, qua hæc ictum fugit, & proin
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de grauitas ſuperioris non augebit vim
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abbr
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compreſſiuã
">compreſſiuam</
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,
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ſeu grauitatem inferioris; perindè ergò operatur
<
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abbr
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põ-dus
">pon
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dus</
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vnius partis ac ſr æquale eſſet ponderi aggregati
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omnium partium. </
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<
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id
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s.002224
">ex quo fit vt in motu deſcenſus
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quælibet corpora inæqualia æquè grauia cenſeri poſ
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ſint; ideoque non deſcendent in æqualibus veloci
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tatibus, neque nouum eſt vim, & energiam decem
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hominum ſuſtinere poſſe maius pondus nempè decu
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plum, quàm vnus eorum, ſed non indè ſequitur, quod
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prædicti homines currere poſſint baiulando eadem̨
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pondera velocitate decies maiori, quam vnus
<
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abbr
="
eorũ
">eorum</
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>
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tantùm, itaque licèt velocitas curſus dependeat à vi,
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& energia prædictorum hominum, non proindè ve
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locitas augetur
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abbr
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multiplicaturq;
">multiplicaturque</
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prout homines præ
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dicti multiplicantur. </
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<
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id
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s.002225
">Vnde patet infirmitas primæ
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obiectionis.
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Cap. 10. de
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æquitempo
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ranea natu
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rali veloci
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tate
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abbr
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grauiũ
">grauium</
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.</
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id
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s.002227
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abbr
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Reſpõdetur
">Reſpondetur</
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ſecundæ.</
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>
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<
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id
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s.002228
">Ad ſecundam noto, nos quærere an duo corporą
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grauia dum naturali, libero, & non impedito motu
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feruntur inæqualibus velocitatibus deſcendant, ſci
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licèt in eadem proportione, quam grauitates habent.
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<
s
id
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s.002229
">ergo prauè, & contra logices præcepta aduerſarius
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/>
permutat ſubiectum problematis, cùm
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expan
abbr
="
nẽpè
">nempè</
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>
aſſumit
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non duo mobilia grauia, ſed vnum, & in eo quærit
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motus partium in ſuo toto, quæ nequeunt libero, &
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non impedito motu deſcendere niſi ex parte. </
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<
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id
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s.002230
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