Valerio, Luca
,
De centro gravitatis solidorvm libri tres
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neis connectantur, erunt binæ connectentes parallelæ, &
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ab axe
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K
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L bifariam ſecabuntur, vt figuræ deſcriptio ina
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nifeſtat. </
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<
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>Totius igitur fruſti ABCDEFGH, centrum
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grauitatis
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in linea
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cadet: ſed punctum
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cadit infra
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punctum
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, multo ergo inferius, & baſi EG propinquius
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punctum
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quam punctum
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<
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PROPOSITIO XXIV.
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<
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>Omnis fruſti conici centrum grauitatis pro
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pinquius eſt maiori baſi quam punctum illud, in
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quo axis ſic diuiditur, vt pars minorem baſim
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attingens ſit ad reliquam, vt dupla diametri ma
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ior is baſis vna cum minoris diametro ad duplam
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diametri minoris baſis vna cum diametro ma
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ioris. </
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<
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>Hoc eadem ratione deducetur ex antecedenti, qua cen
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trum grauitatis fruſti conici in extremo primo libro demon
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ſtrauimus, quandoquidem ſimiliter vt ibi fecimus, omnis
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pyramidis centro grauitatis idem probaremus accedere
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quod prædictæ pyramidis in antecedente. </
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PROPOSITIO XXV.
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<
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>Si ſint quotcumque magnitudines, & aliæ illis
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multitudine æquales, binæque ſumptæ in eadem
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proportione, quæ commune habeant centrum gra
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uitatis, centra autem grauitatis omnium ſint in
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eadem recta linea; primæ & ſecundæ tanquam </
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