Commandino, Federico - Liber de centro gravitatis solidorum

Commandino, Federico, Liber de centro gravitatis solidorum, 1565

Table of figures

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1

11[Figure 11]
habebit maiorem proportionem,
quam cb ad ba. fiat ob ad ba,
ut figura rectilinea ad portio
nes. cum igitur à circulo, uel el
lipſi, cuius grauitatis centrum
eſt b, auferatur figura rectilinea
efghklmn, cuius centrum a;
reliquæ magnitudinis ex portio

nibus compoſitæ centrum graui
tatis erit in linea ab producta,
& in puncto o, extra figuram po
ſito. quod quidem fieri nullo mo
do poſſe perſpicuum eſt. ſequi
tur ergo, ut circuli & ellipſis cen
trum grauitatis ſit punctum a,
idem quod figuræ centrum.

8. quinti

19. quinti
apud Cam
panum .

8. Archi
medis.

Sit circulus, uel ellipſis abcd,
cuius diameter db, & centrum e: ducaturque per e recta li
nea ac, ſecans ipſam db ad rectos angulos. erunt adc,
abc circuli, uel ellipſis dimidiæ portiones. Itaque quo

12[Figure 12]
niam por
tionis adc
centrum gra
uitatis eſt
in diame
tro de: &
portionis
abc cen
trum eſt im
ipſa eb: to
tius circu
li, uel ellipſis grauitatis centrum erit in diametro db.
Sit autem portionis adc centrum grauitatis f: & ſumatur

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