Archimedes
,
Archimedis De iis qvae vehvntvr in aqva libri dvo
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ARCHIMEDIS
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angulus b n f œqualis angulo o g f: </
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cularis ad e f, & </
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<
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monstrare oportebat.</
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<
s
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xml:space
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">Et quod in humido eſt ſurſum ſeretur ſecundum per-
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pendicularem, quæ per b ducta eſtipſi rt æquidiſtans.</
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_Cur hoc quidem ſurſum, illud uero deorſum per lineam perpen-_
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_dicularem feratur, diximus ſupra in octauam primi libri buius. </
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<
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xml:space
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_re neque in hac, neque in alijs, quæ ſequuntur, eadem iterare neceſſa_
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_rium exiſtimauimus._</
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<
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<
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portio conoidis rectanguli quando
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axem habuerit minorem, quam ſeſquialterum
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eius, quæ uſque ad axem, quamcunque propor-
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tionem habens ad humidum in grauitate; </
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<
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ſa in humidum, ita ut baſis ipſius tota ſit in humi
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do; </
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<
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">poſita inclinata, non manebit inclinata, ſed
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ita reſtituetur, ut axis ipſius ſecundum perpendi
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cularem fiat.</
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</
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<
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<
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">DEMITTATVR enim aliqua portio in humidum,
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qualis dicca eſt: </
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<
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xml:space
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">ſecta ipſa
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plano per axẽ, recto ad ſuperficiẽ humidi, ſit ſectio a p ol
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rectanguli coniſectio: </
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<
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">axis portionis, & </
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">ſectionis diame-
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ter p f: </
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<
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<
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xml:space
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">Quòd ſi incli
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nata iaceat portio, non erit axis ſecundum perpendicula-
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rem. </
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<
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<
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">Itaque
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ducatur linea quædã k ω æquidiſtans ipſi is; </
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</
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">ſolidæ quidẽ magnitudinis a p o l
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ſit r grauitatis centrum: </
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