Marci of Kronland, Johannes Marcus, De proportione motus figurarum recti linearum et circuli quadratura ex motu, 1648

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              vem; habeat verò impulſum æqualem gravitati ſecundæ; exclus à baſi
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              illius locum obtinebit.
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              <s>Vt ſi orbiculus metallicus baſim ligneam percutiat:
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              hu­
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              ius impulſus æqualis gravitati ſecundæ, quâ baſis detinetur à
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              cylindro: cuius pars eſt gravitas propria eiuſdem baſis: dico
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              hunc orbiculum exclusâ à cylindro baſi, illius locum obtinere
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              Vt enim baſis à cylindro excludatur, neceſſe ſuperare illam re­
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              ſiſtentiam, dum in cylindro movetur, à gravitate tum propriâ
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              tum alienâ provenientem: quam quidem ſimul collectam
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              metitur diameter eiuſdem cylindri: propterea quòd ultima
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              pars baſis neceſſariò per hanc moveatur. </s>
              <s>At verò impulſus,
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              quo baſis urgetur ab orbiculo graviore, aſſumitur æqualis re­
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              ſiſtentiæ ſimul collectæ; in omni ergo puncto motûs cylindri­
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              ci eſt maior reſiſtentia:
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              in fine motûs eidem gravita­
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              ti fiat æqualis. </s>
              <s>Et quia baſis per 11 huius non niſi ab impulſu
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              fluente movetur; ſuccedet continuò in locum huius orbicu­
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              lus movens: ac proinde baſi à cylindro exclusâ eundem lo­
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              cum obtinebit. </s>
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              Dices ſi in fine motûs impulſus eſt æqualis gravitati ſccundæ, in omni
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              verò puncto motûs maior eadem gravitate, quomodo totus impulſus
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              eſſe poteſt æqualis toti gravitati? Nam ſi æqualibus addantur inæqua­
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              lia, erunt tota inæqualia: at〈que〉 maius ab acceßione maiori.
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              <s>Refpondeo illam æquationem non niſi extrinſecè termina­
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              ri: cùm partes habeant nullâ duratione commenſurabiles. </s>
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              <s>Fit ergo quemadmodum in aſcenſionibus ſignorum; ut licet
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              continuò partes maiores aut minores cooriantur; in fine ta­
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              men motûs quadrantes inter ſe ſint æquales. </s>
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