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

Table of figures

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              <s id="s.001315">
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              & octuagies maius, quàm priùs, quia verò hic aer
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              communis ſtringi condenſarique poteſt violenter vſ­
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              que ad decimam eius partem, vel decimam quintam.
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              </s>
              <s id="s.001316">igitur diſtantia inter
                <expan abbr="maximã">maximam</expan>
              aeris denſitatem, &
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              ampliſſimam eius expanſionem, aut erit 1800. aut
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              2700.
                <expan abbr="eadẽ">eadem</expan>
              proximè, quæ à Merſenno poſita fuerat. </s>
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            <p type="margin">
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              Prop. 105.</s>
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              Cap. 5. de ae
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              ris grauitate
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              æquilibrio,
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              ſtructura, &
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              vi elaterią
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              eius.</s>
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              PROP. CXXII.
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              Aer in naturali eius conſtrictione remota omni violentiæ
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              rarisſimus eſt, & ſpatium occupat bis millies maius
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              quam in ſtatu maximæ eius violentæ constri­
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              ctionis, quæ ſi remoueatur ſpontè, & in­
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              genti vi ad
                <expan abbr="pristinã">pristinam</expan>
              natiuam rari­
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              tatem redigitur.
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              <s id="s.001321">QVia verò experientia conſtat aerem dilatari
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              quidem
                <expan abbr="ſpõte">ſponte</expan>
              ſua, & non ſine impetu, & cele­
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              ritate maxima, & è contrà
                <expan abbr="numquã">numquam</expan>
              ſponte conſtrin­
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              gi condenſarique videmus, ſed ſemper hoc efficitur
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              ab aliqua violentia externa, hinc cogimur aſſererę
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              aerem habere virtutem quamdam elaſticam, qua ni­
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              mirùm quotieſcumque violentiam conſtrictiuam pa­
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              titur, tunc quidem reſilire vehementerque vibrarę
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              ſeſe dilatando poſſe; hoc autem conſtat
                <expan abbr="luculẽto">luculento</expan>
              ex­
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              perimento in ipſa catapulta pneumatica, in qua aer
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              magna vi incluſus in eius cauitatem poſtea amotą
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              valuula tanta violentia ruit, erumpitque, vt pilam̨
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              plumbeam, ſeù telum impellat proijciatque, vt iņ
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              magna diſtantia tabulam oppoſitam ſatis craſſam̨ </s>
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