Archimedes
,
Archimedis De iis qvae vehvntvr in aqva libri dvo
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DE CENTRO GRAVIT. SOLID.
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habebit maiorem proportionẽ,
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0123-01
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quam c b ad b a. </
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ut figura rectilinea ad portio-
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nes. </
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<
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">cum igitur à circulo, uel el-
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lipſi, cuius grauitatis centrum
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eſt b, auferatur figura rectilinea
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e f g h k l m n, cuius centrum a;
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</
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<
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">reliquæ magnitudinis ex portio
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medis.</
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nibus compoſitæ centrum graui
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tatis erit in linea a b producta,
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& </
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ſito. </
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<
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xml:space
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">quod quidem fieri nullo mo
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do poſſe perſpicuum eſt. </
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<
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tur ergo, ut circuli & </
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trum grauitatis ſit punctum a,
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idem quod figuræ centrum.</
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<
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">Sit circulus, uel ellipſis a b c d,
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cuius diameter d b, & </
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">per e recta li
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nea a c, ſecans ipſam d b adrectos angulos. </
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<
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">erunt a d c,
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a b c circuli, uel ellipſis dimidiæ portiones. </
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<
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niam por
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<
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fig-0123-02a
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number
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80
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0123-02
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xlink:href
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tiõis a d c
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cétrū gra-
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uitatis eſt
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in diame-
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tro d e: </
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portionis
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a b c cen-
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trum eſt ĩ
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ipſa e b: </
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tius circu
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li, uel ellipſis grauitatis centrum eritin diametro d b.
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</
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<
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