Gassendi, Pierre, De proportione qua gravia decidentia accelerantur, 1646

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1ex A, verſus C, eodem momento, quo aliud ex D,
verſus
E; notum eſt, ſi vtrumque quidem fer­
31[Figure 31]
retur
non accelerato, ſed æquabili motu,
euenturum
eſſe, vt velocitate illius exſiſtente
dupla
ad velocitatem iſtius, illud perueniret
in
C, eodem momento, quo iſtud in E;
quoniam
ſpatium ab illo ſuperatum foret
vbique
ad ſpatium ab iſto ſuperatum, du­
plum
; hoc eſt, forent ab illo ſuperatæ duæ
partes
, cùm ab iſto vna: ab illo quatuor, cùm ab hoc
duæ
, &c.
quatenus ſpatia ſe haberent vbique, vt velo­
citates
; hoc eſt, velocitas per totam AC, eſſet vbique
dupla
velocitatis per totam DE.
At verò, quoniam
heic
agitur de motu non æquabili, ſed continenter
accelerato
; ita diſcedant rursùs mobilia eodem tem­
pore
, vnum ab A, aliud à D, vt ſuccreſcentibus conti­
nuò
velocitatis gradibus, illud perueniendo in C, ac­
quiſierit
duodecim, hoc perueniendo in E, ſex: Tum
interrogas
, Quid impediat, quò minùs illud perueniat
in
C, eodem tempore, quo iſtud in E? Ego verò reſ­
pondeo
, nihil certè impedire, ſi tales eſſent, quales deſcribis
velocitate
: taleis autem ſine dubio deſcribis, qualeis in prima
illa
Galilei propoſitione ſignificari putas. At hoc ſenſu hypo­
thetica
illa Galilei propoſitio falſa eſt, euidenterque impoßi­
bilis
: cùm nulla prorsùs ratione conſequens inferi poßit ex
antecedente
.
Hoc enim eſt Antecedens, Acceleratio ve­
locitatis
in deſcenſu grauium per totam AC, ita con­
tinua
ſucceſſione creſcit, vt primùm in B acquiſitus
ſupponatur
vnus aliquis velocitatis gradus; & vlteriùs
procedente
motu, & continuò increſcente celeritate,

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