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

Table of figures

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              Cap. 6. non
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              dari attracti­
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              onem.</s>
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              <s id="s.001445">REuera Mercurius pulpæ digiti connectitur in A,
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              non vi aliqua attractiua, ſed à compreſſionę
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              aeris ambientis ſupra ſtagnans hydrargyrum E
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              vaſis ſubiecti; hoc autem confirmatur ex eo, quòd ſi
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              altiùs eleuetur fiſtula, vt nimirùm ſoli­
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              tam altitudinem vnius cubiti, & qua­
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              drantis excedat, tunc quidem ſuprema
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              mercurij ſuperficies leniſſimo motu
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              abſque vlla difficultate diuellitur, ſepa­
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              raturque à digiti pulpa ſuprema A, non
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              igitur à vi attractiua mercurius digito
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              annectebatur. </s>
              <s id="s.001446">Sed quæres; vnde ergò
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              oritur ſenſus ille ſuctionis, & tractio­
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              nis, qui in prædicta pulpa digiti perci­
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              pitur, & quomodò ſuſtentat, atquę
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              percipit grauitatem mercurij ſubiecti?
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              <s id="s.001447">Reſpondeo, quòd à pondere aeris ma­
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              nui, & digito incumbentis
                <expan abbr="cõprimuntur">comprimuntur</expan>
              omnes par­
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              tes digiti, excepta illa particula, quæ orificium vitri
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              A attingit, & ab hac compreſſione exprimitur ſan­
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              guis in tumore illo rubicundo pulpæ digiti, quæ in
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              orificio vitri A inſinuatur, quando ſpatium inane ibi­
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              dem creatur. </s>
              <s id="s.001448">Præterea adeſt pondus hydrargyri in­
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              tra fiſtulam contenti, quod ſuſtinetur à preſſione cy­
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              lindri aerei dum comprimit mercurij ſuperficiem ſta­
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              gnantis. </s>
              <s id="s.001449">Vnde ex vna parte habemus pondus cylin­
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              dri aerei, orificium, & digitum in A comprimentis,
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              pariterque adeſt pondus vitri AB, & mercurij in ip­
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              ſo contenti, ex altera verò parte adeſt grauitas alte-</s>
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