Borelli, Giovanni Alfonso - De motionibus naturalibus a gravitate pendentibus

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

PROP. XXXIII.

Idipſum verificatur quotieſcumque prædicta veſica in ipſa
aqua demergitur.

IBi enim nedùm à perpendiculariter incumbentę
aqua comprimitur, ſed etiam ab infima, & colla
terali, vndequaque, & vniuersè æqualibus viribus
impellitur, conſtringitur que, vnde fit vt licèt veſi
ca ſit tenuiſſima, non poſſit tamen vnquam diffringi à
pondere licèt immenſo ſuperſtantis aquæ, vel hy
drargyri, nec contuſionem, aut diffractionem vllam
pati; & ratio eſt quia licèt tota maſſa contenta intra
veſicam ſit fluida, mollis, & cedens, nihilominus
quia minimæ particulæ fluidi, vel arenæ ſe mutuò
fulciunt, & natiua duritie compreſſioni reſiſtunt, fit
vt condenſari, aut conſtringi nequeant, & ab vni
uerſali circumambiente compreſſione ne minimum
alteretur eius figura, neque ſitus partium.

PROP. XXXIV.

Tandem oſtenditur quare animal nullam noxam ex com
presſione aquæ incumbentis pati debeat.

NOn ſecùs in corpore animalis continentur in
tra eius pellem partes aliæ quidem duræ, &
ſolidæ, vt ſunt oſſa, aliæ molles, vt ſunt tendines,
nerui, membranæ, & muſculi; aliæ verò ſunt fluidæ,
aqueæ, vel oleaginoſæ continentes innumeras alias

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