Archimedes
,
Archimedis De iis qvae vehvntvr in aqva libri dvo
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0027
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27
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DE IIS QVAE VEH. IN AQVA.
"/>
neas; </
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<
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">neutra alteri obſistit, quo minus moueatur; </
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<
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<
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xml:space
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fiat, dum portio in rectum fuerit conſtituta: </
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<
s
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xml:space
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">tunc enim utrarumque
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magnitudinum grauitatis centra in unam, eandémq; </
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<
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rum conueniunt, uidelicet in axem portionis: </
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<
s
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xml:space
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">quanto conatu, im
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petùue ea, quæ in humido eſt ſurſum, tanto quæ extra humidum de-
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orſum per eandem lineam contendit. </
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<
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xml:space
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">quare cum altera alteram non
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ſuperet, non amplius mouebitur portio; </
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<
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xml:space
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<
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eodem ſemper ſitu; </
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<
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xml:space
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">niſi forte aliqua cauſſa extrinſecus acceſſerit.</
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<
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head
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<
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ſi figura humido leuior in humidum
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demittatur, ita ut baſis tota ſit in humido; </
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xml:space
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bit recta, ita ut axis ipſius ſecundum perpendicu
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larem conſtituatur.</
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<
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<
s
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xml:space
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">INTELLIGATVR enim magnitudo aliqua, qua-
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lb
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lis dicta eſt, in humidum demiſſa: </
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xml:space
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">& </
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<
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">intelligatur planum
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per axem portionis, & </
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">per centrum terræ ductum: </
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perficiei quidem humidi ſectio a b c d circunferentia; </
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xml:space
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ræ autem ſectio circun ferentia e f h: </
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xml:space
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<
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xml:space
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</
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xml:space
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">& </
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<
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xml:space
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">axis portionis f t. </
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<
s
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xml:space
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">Si igitur fieri poteſt, non ſit f t ſecun
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dum perpendicularem.</
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<
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15
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<
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0027-01
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http://echo.mpiwg-berlin.mpg.de/zogilib?fn=/permanent/library/4E7V2WGH/figures/0027-01
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">Demonſtrandum eſt non
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manerefiguram; </
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xml:space
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ctum reſtitui. </
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<
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xml:space
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">eſt autem
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centrum ſphæræ in linea
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f t: </
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<
s
xml:id
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xml:space
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">rurſus enim ſit figu-
<
lb
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ra primo maior dimidia
<
lb
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ſphæra: </
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xml:space
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">& </
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<
s
xml:id
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">ſphæræ centrũ
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in dimidia ſphæra ſit pun-
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ctum t; </
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">in maiori uero ſit _k_: </
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<
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_k_, & </
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<
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<
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note-0027-01a
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