Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

Table of figures

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              deſcripta circa axiculum C, nam ſi funis ex vtroque dia­
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              metri extremo à centro æquidiſtanti propendeat, & hinc
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              pondus D, illinc potentia E æqualiter præmat, idem erit, ac
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                <figure id="id.005.01.183.1.jpg" xlink:href="005/01/183/1.jpg" number="63"/>
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              ſi in libra æqualibus prædita
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              brachijs æqualia pondera ap­
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              pendantur, quorum vnum, alte­
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              rum per proprium deſcenſum
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              eleuare non poſſet, cum actio
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              debeat eſſe ab inæquali propor­
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              tione, vt docet idem Ariſt. </s>
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              <s id="N1533D">Quare tota vis quæ adiungi­
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              tur potentiæ, pondus aliquod
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              eleuanti prædictarum trochlea­
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              rum beneficio, petenda eſt ex
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              trochlea inferiori. </s>
              <s id="N15348">Etenim cum
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              alterum
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              funis orbicu­
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              lo huius trochleæ circumdu­
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              cti, in ſuperiori ligno firmiter ſu­
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              ſpenſo ſit religatum; alterum
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              verò à potentia ſuſtineatur, vel traha­
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              tur, pondus quod ex ipſius trochlea
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              pendet, quaſi diuiſum, partim à ligno
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              ſuperiori, ac partim à potentia trahen­
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              te ſuſtentatur, vt optimè demonſtrat
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              Guidus Vbaldus propoſit. </s>
              <s id="N15363">2. & Baldus
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              in hac quæſt. </s>
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                <expan abbr="videreq.">videreque</expan>
              eſt in ſequenti
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              figura. </s>
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              <s id="N15372">Quoniam ſi trochlea ABC ſuſpen­
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              datur per funem eius orbiculo cir­
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              cumductum, cuius vnum
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              ſit
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              in D ſtabiliter alligatum, alterum verò
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              à potentia in E conſtituta ſuſtineatur;
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              ac pondus F ab ipſa inferiori parte
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              trochleæ vbi B propendeat ſubliga­
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              tum, pondus ipſum
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              , non quidem
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              à ſola potentia E, nec à ſolo ſuſten</s>
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