Varro, Michael, De motv tractatvs

Table of figures

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              ſpatia hanc celeritatis proportionem ſeruant, vt
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              eſt ratio totius ſpatij, per quod fit ille motus ad par­
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              tem ipſius (vtriuſque initio inde ſumpto, vbi eſt mo
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              tus initium) eadem ſit celeritatis ad celeritatem.
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              Exempli gratia, ſi vis aliqua per lineam ABC
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              mouerit, ſitque AB illius lineæ pars, quæ erit
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              ratio AC ad AB, eadem erit celeritatis motus
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              in puncto C ad
                <expan abbr="celeritatẽ">celeritatem</expan>
              motus in puncto B.
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              <s>Cuiuſmodi proportio obſeruatur in paralle­
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              lis triangulum ſecantibus. </s>
              <s>Vt enim ſe habet
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              AC ad AB, ſic CG ad BF, & vt AD ad
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              AC, ſic DH ad CG. </s>
              <s>Itaque ſi in ſpatia ali­
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              quot æqualia diuidatur totius motus ſpa
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              tium, finis ſecundi duplo citiùs feretur,
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              quàm finis primi: finis verò tertijtriplo
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              citiùs quàm finis primi, & ſic deinceps.
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              <s>Hac autem ratione fit, vt ſpatiorum illo­
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              rum initio maxima ſit celeritatis
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                tia</expan>
              : progreſſu verò ſemper minuatur, ac tandem fer­
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              mè eadem ſit, vt fit in trianguli lateribus, quæ lon­
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              giſſimè producta æquè diſtare videntur. </s>
              <s>Eáque eſt
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              ratio cur Solis & Lunæ radij, etiamſi concurrant (in
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              ipſorum ſcilicet corporibus, aut vltra res quas
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                ſtrant</expan>
              ) paralleli
                <expan abbr="tamẽ">tamen</expan>
                <expan abbr="appareãt">appareant</expan>
              . </s>
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                <expan abbr="Eadẽ">Eadem</expan>
                <expan abbr="etiã">etiam</expan>
              cauſa eſt cur
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              lineę omnes ad
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              in
                <expan abbr="terrã">terram</expan>
              cadentes, paral­
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              lelæ videantur, cùm
                <expan abbr="tamẽ">tamen</expan>
              in centro terræ
                <expan abbr="cõcurrant">concurrant</expan>
              . </s>
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