Archimedes, Archimedis De iis qvae vehvntvr in aqva libri dvo

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64ARCHIMEDIS midum demiſſa adeo, ut baſis ipſius tota ſit in hu
mido, &
poſita inclinata, nec conuertetur ita, ut
axis ipſius ſecũdum perpendicularem ſit, nec ma
nebit inclinata, niſi quãdo axis cum ſuperficie hu
midi angulum fecerit æqualem angulo ſimiliter
ut prius, aſſumpto.
SIT portio, qualis dicta eſt: ponaturq; d b æ qualis axi
portionis:
& b _k_ quidem ſit dupla ipſius _k_ d; k r autem
æqualis ei, quæ uſque ad axem:
& c b ſeſquialtera b r.
Quam uero proportionem habet portio ad humidum in
grauitate, eam habeat exceſſus, quo quadratum b d exce-
& ſit f ipſius
q dupla.
conſtat igitur exceſſum, quo quadratum b d ex-
b d, minorem ha-
bere proportio-
nem, quàm exceſ-
b d excedit qua-
dratum f q ad b d
eſt e-
nim b c exceſſus
quo axis portiõis
maior eſt, quã ſeſ-
quialter eius, quæ
11A b d magis excedit
quadratum f q, quàm b c quadratum:
& idcirco linea f q
minor eſt, quàm b c itemq;
f minor, quàm br. Sit ipſi