Marci of Kronland, Johannes Marcus, De proportione motus, seu regula sphygmica ad celeritatem et tarditatem pulsuum, 1639
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              <p id="N142A3" type="main">
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                lá fieri quidam aſſeuerant. </s>
                <s id="N143E0">Cùm ergò aër ab illo ictu ſe
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                ſubducat, nullam inducet plagam, nullum proinde velo­
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                citatis decrementum; non aliter quam ſi globus per fiſ­
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                ſuram muri tranſuolet muro inoffenſo. </s>
                <s id="N143E9">Deinde cùm im
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                pulſus continuò augeatur, erit continuó minor reſiſten­
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                tia. </s>
                <s id="N143F0">Reſpondeo aerem quidem impelli & præcurrere,
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                verùm minori celeritate, quàm ut plagam effugiat á ter­
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                go hærentem; major enim globi impetus, quâm ut ab
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                aere fluido recipiatur: unde eadem reſiſtentia in aëre per
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                forando, non minús, quàm ſi ſecundo flumine elucte­
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                mur motu velociori, quàm ſit defluxus; non minor e­
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                nim difficultas in perrumpendo, quam ſi in aquà fiat im­
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                motà. </s>
                <s id="N14401">Deinde licet aër percuſſus à plagà ſe ſubducat &
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                præcurrat, alius tamen in locum plagæ ſe infundit non
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                minori vi findendus:
                  <expan abbr="neq́">neque</expan>
                ; enim aër diſcerpi poteſt eo
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                modo, quo corpora magis denſa, in quibus perruptis cor
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                pus magis ſubtile interceptum viam præſtat faciliorem;
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                verùm
                  <expan abbr="quacunq́">quacunque</expan>
                ; plaga incidit, eadem aëris ſoliditas per­
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                rumpenda. </s>
                <s id="N14418">Ad ſecundam rationem, dico velocitatem
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                motus continuò quidem augeri, ac proinde illam reſi­
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                ſtentiam medij auctà velocitate faciliùs perrumpi; pro­
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                pterea quód ablatà parte æquali major ſit exceſſus reli­
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                quus: nego autem â velociori plagà minus eſſe decre­
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                mentum. </s>
                <s id="N14425">An non velociùs vectem deprimunt libræ 10.
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                aut 100, quam libra
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                1?
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                & tamen granum unum aut </s>
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