Archimedes
,
Archimedis De iis qvae vehvntvr in aqva libri dvo
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VRBINATIS LIBER DE CENTRO
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GRAVITATIS SOLIDORVM.
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DIFFINITIONES.</
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<
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grauitatis, Pappus
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Alexandrinus in octauo ma-
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thematicarum collectionum
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libro ita diffiniuit.</
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<
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ους ἑκά στου σἀ
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ματος {εἶ}ναι σημ\~ειον τικείμενον ἑντὸς, ἀφ
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οὖ κα\’τ ἐποίνιαν ἀρτηθέν τό βάρ
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ος ἡμερ{εἶ}
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φερ
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όμενον, καὶ φυλὰσσει τήν ἐξἀρχ\~νςθἐ-
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σιν, οὐ μὴ περιτρ
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επ ὸμενον ἐντῆ φορ
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ᾶ. </
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<
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<
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">Dicimus autem centrum grauitatis uniuſcu-
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inſque corporis punctum quoddam intra poſi-
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cum, à quo ſi graue appenſum mente concipia-
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tur, dum fertur quieſcit; </
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<
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principio habebat poſitionem: </
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tione circumuertitur.</
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<
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<
s
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">Centrum grauitatis uniuſcuiuſque ſolidæ figu
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ræ eſt punctum illud intra poſitum, circa quod
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undique partes æqualium momentorum conſi-
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ſtunt. </
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<
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figuram quomodocunque ſecans ſemper in </
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