Gassendi, Pierre - De motu impresso a motore translato epistulae duae

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1quædam angulo oppoſitæ, DE, FG, HI, KL, &
plures, ſi velis; itemque diuiſa in totidem parteis
KL, ducantur parallelæ DM, FN, HO; & EO,
GN, IM: diſpeſcetur ſpatium in eos, quos vides
triangulos, inter ſeſe omninò pareis. Concipe iam
lineas ab angulo incipientes repræſentare tempus ab
aliquo puncto æquabiliter fluens, & parteis linearum
æqualeis repræſentare æqualeis parteis, ſiue mo
menta temporis. Concipe rurſùs interuallum vnifor
miter creſcens repræſentare velocitatem vniformi
ter increſcentem, & quos pareis triangulos vides,
totidem gradus velocitatis, & conſequenter parteis
ſpatij, quod graue decidens percurrit. Tunc agnoſ
ces ſanè, cùm in primo momento ſit vnus gradus
impetus, ſeu velocitatis, acquiri in ſecundo treis, in
tertio quinque, in quarto ſeptem, qui progreſſus eſt
numerorum ab vnitate imparium. Et aliunde, ſi du
cas lineam, quæ diuiſa in ſexdecim parteis referat
orgyiarum ſexdecim altitudinem; agnoſces cur gra
ue in fine primi momenti deſcenderit vnam orgyiam,
in fine ſecundi quatuor, in fine tertij nouem, in fine
quarti ſexdecim: quia nempe ita ſe habere aggre
gando intelliguntur memorati trianguli in fine
cuiuſque repræſentati momenti. Agnoſces quoque,
cur idem graue ſurſùm projectum ſecundum ean
dem lineam tanto tempore aſcendat, quanto deſ
cendit, & velocitas motus eius eadem ratione aſcen
dendo decreſcat, qua deſcendendo increſcit Quia
ſi ſupponas vim proiectricem indidiſſe illi ſeptem ve
locitatis gradus, vt ſunt ſeptem trianguli ad infi-

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