Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

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              Cap. 3. flui­
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              dum in ſuo
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              toto quie­
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              ſcens pon­
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              derat.</s>
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              Cap. 3. flui­
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              dum in ſuo
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              toto quie­
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              ſcens ponde­
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              rat.</s>
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              PROP. XIV.
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              Id ipſum in ſiphone comprobatur.
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              <s id="s.000186">PRæterea vſurpetur idipſum vas vitreum, ſed in­
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              flexum, vt eſt AMOP ſiphonis inuerſi figuram
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              referens, atque portio ANO aquą
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              impleatur, reliqua verò fiſtula OP o­
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              leo. </s>
              <s id="s.000187">Et quia vt mox oſtenſum eſt ex
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              aduerſarij hypotheſi tota aqua AM
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              vim non infert neque impellit infe­
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              riorem aqueam laminam MN, cùm̨
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              nullam grauitatem ſuper eam exer­
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              ceat; igitur tota moles aquea AM nil prorsùs impel­
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              let terminum aquæ O & proindè ab hoc non impelle­
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              tur ſurſum oleoſus cylinder OP, igitur oleum OP
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              nulla ratione ſubleuari ſursùm deberet, ſed hoc eſt
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              falſum, igitur falſa eſt quoque hypotheſis aſſumpta,
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              quòd aqua in ipſamet aqua poſita grauitatem noņ
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              exerceat. </s>
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              <s id="s.000188">Et profectò methodus ac criterium dignoſcendi,
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              an corpus aliquod grauitet, atque impellat alterum,
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              erit huiuſmodi; conſiderari nimirum debent effectus
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              ab eo producti, & quanta vis contraria requiritur,
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              vt vnum à conſortio, & contactu alterius diuellatur,
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              & ſeparetur, & quia ſi nauis natando lateraliter ſco­
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              pulum contingeret, poſſet à quacumque exigua vi tra­
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              hi, diuelli, & ſeparari ab eodem ſcopulo, hinc in re
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              optimo inferemus nauim omninò carere vi motiua, & </s>
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