Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

Table of figures

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              ratio ac de libra, cuius iugum ſit AB, lances verò C, D,
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              & axis, ſeu fulcimentum E. </s>
              <s id="N129D9">Siquidem ipſum D pendens
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              ex longiori brachio libræ, præponderat ipſi C. </s>
              <s id="N129DF">Quemad­
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              modum potentia applicata in vecte vbi D, ſuperat graui­
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              tatem ponderis C. </s>
              <s id="N129E7">Axis verò
                <expan abbr="cũ">cum</expan>
              ponatur infra iugum, ſiue
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              ipſum iugum ſit ſuſpenſum per trutinam, aut ſpartum, ſiue
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              innixum ſit alteri corpori immobili, idem ſemper præſtat,
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              ac fulcimentum vectis vbi E. </s>
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              <s id="N129F7">Quoniam autem (proſequitur Ariſtoteles) ab æquali
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              pondere celerius, ſiue facilius mouetur brachium libræ,
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              quod magis à centro diſceſſerit, vt explicatum eſt de libra,
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              quæ alterum brachium longius obtinet, eam ad circulum
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              reducendo: hinc fit, vt cum duo ſint, quæ in ambis extre­
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              mitatibus vectis præsunt, vel ponderant, nempe mouens
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              in vna, & motum in alia; illud magis præponderet, quod
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              longiorem vectis extremitatem præſſerit; ſeu quanto magis
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              à fulcimento diſceſſerit, quamuis aliàs ipſa ponderantia in
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              ſe ſint æqualia, hoc eſt virtus mouentis æqualis ſit moto
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              ponderi, & longior pars vectis æquè grauitet, ac breuior.
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              <s id="N12A0F">Quod totum, vt ipſemet Ariſtoteles inquit, deſumitur ab </s>
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