Borelli, Giovanni Alfonso - De motionibus naturalibus a gravitate pendentibus

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

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1

Cap. 5. de ae
ris grauitate
æquilibrio,
ſtructura, &
vi elaterią
eius.

Cap. 5. de ae
ris grauitate
æquilibrio,
ſtructura, &
vi elaterią
eius.

Cap. 5. de ae
ris grauitate
æquilibrio,
ſtructura, &
vi elaterią
eius.

PROP. CI.

Idipſum clariùs confirmatur.

QVòd poſtea prædicta mercurij eleuatio in fi ſtu
la producatur ab aeris compreſſione ſuprą
mercurium in ſcutella contentum, confirmatur alią
ratione, ſed clariùs adhibito inſtrumen
to à me excogitato, quod Academiæ
Experimentali Mediceę communicaui,
eiuſque ichon habetur figura 34. libri
experimentorum eiuſdem Academiæ,
abſque enim ſcutella DE ſufficit vt in
fima pars fiſtulæ BC incuruetur, ſur
ſumque inflectatur, tunc quidem reple
ta vt priùs vniuerſa fiſtula mercurio,
reuoluatur vt eius pars clauſa A & lon
gitudo fiſtulæ AFB perpendicularitèr
ad horizontem emineat, tunc quidem
ab orificio aperto G hydrargyrum̨
profluet, vel intra amplitudinem am
pullæ DG reducetur, quouſque altitu

82[Figure 82]
do mercurialis cylindri FB ſupra libellam BD fuerit v
nius cubiti & quadrantis, & tunc concipi debet cylin
drus aereus DS vſque ad ſupremam aeris ſuperficiem
S extenſus, cuius pondus æquetur grauitati cylindri
mercurialis FB. Quod verò à compreſſione prædicti
cylindri aerei DS eleuetur grauiſſimum hydrargyrum
FB probatur ex eo quod ſi augeatur impulſus, & com-

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