Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

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1
impedient effluuium, & motionem vagam partium
aquæ.
Imò ſi quis hoc negotium attentè perpendat,
percipiet ab ijſdem partibus aqueis potius impediri
motiones eius, quàm ab aere externo; primò quią
ſunt æquè conſiſtentes, & corpulentæ, & ſic non poſ­
ſunt viciſſim è ſuis locis dimoueri, ac expelli: inſupèr
cum earum motus ſint vagi, & inordinati, non poſsunt
omnes ad eaſdem partes dirigi, & ideò vna pars ſu­
per aliam incidens motu contrario, viciſſim ſe ſe iņ
progreſſu impedient.
Ad hæc, vbi deeſt aer, deficiet
prorſus cauſa impediens motiones particularum a­
quæ, proptereà quòd vbi aer non adeſt, neque eius
motus impedimentum afferre poterit agitationi par­
tium aquæ.
hoc autem contingit in vacuo Torricel­
liano, vbi nullo pacto impedirentur motiones earun­
dem
particularum aquæ, imò faciliùs per ſpatium fe­
rè vacuum ſpargi diſſiparique poſſent, & proindè non
cogerentur motu reflexo intra eaſdem guttas regre­
di, agitari, conſtiparique, & ideò ceſſaret cauſa, &
neceſſitas ob quam guttulæ aquæ in vacuo, vel in ae­
re rariſſimo ſphęricum tumorem acquirere deberent,
& tamen hoc repugnat experientiæ, cùm in prædicto
vacuo guttulæ non minùs rotundæ, quàm in aere a­
perto, tornentur.
Cap. 8. cur
exiguæ aquę
guttæ ſupra
libellam aquæ
aſcendunt.
PROP. CLXIX.
Incongruentia, & angustia pororum aeris non poſſet impedi­
re diffuſionem particularem aquæ per
aerem.

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