Borelli, Giovanni Alfonso - De motionibus naturalibus a gravitate pendentibus

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1
ratio vetat, quin pondere ſuo comprimat infimam ſu
biectam laminulam eiuſdem fluidi quæ fundo vaſis
contigua eſt, quandoquidem minimè poſſunt ſupre
mæ fluidi partes fundum vaſis comprimere abſquę
eo quod impellant, & ſtringant infimam eiuſdem flui
di laminulam, cùm actio in diſtanti fieri non poſſit, ſed
contactu quodam remotiores impellendo eis conti
guas ſubiectas partes, & hæ ſubſequentes ſerie qua
dam ordinata quouſque fundum comprimant.

Cap. 3. flui
dum in ſuo
toto quie
ſcens pon
derat.

PROP. XIII.

Aqua vaſis fundum çomprimit ſua grauitate.

SEd hoc euidentius ſic patebit, ſit fiſtula vitrea A
NO perpendiculariter ad horizontem erectą,
repleaturquè aqua, ſeù quolibet alio fluido cor
pore, & ductis innumeris planis horizonti æquidiſtan
tibus ſubdiuidatur vniuerſum fluidum iņ

17[Figure 17]
laminas gracillimas ſeù membranas æquè
altas AB, BC, CD, DE, EF, FM, & MN. &
primò ſi verum eſt, vt aduerſarij credunt
aquam in ipſamet aqua collocatam non gra
uitare, igitur ſuprema laminula aquea AB
prorſus non comprimet ſubiectam membra
nam aqueam BC, ſcilicet vim nullam ſuper eam exer
cebit (hoc enim grauitatis nomen indicat) neque eam
deorſum impellet perinde ac ſi aqua ſuprema AB non
adeſſet, proindeque hæc non augebit grauitatem in
ferioris laminæ BC, aliàs ſuprema aqua AB pondera-

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