Guevara, Giovanni di
,
In Aristotelis mechanicas commentarii
,
1627
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docet habere iſtum ad illum. </
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<
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N140C0
">Hoc eſt propenſio, quam an
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gulus circuli maioris habet ſupra angulum circuli minoris
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circa idem centrum deſcripti, vt celerius, ac facilius cum.
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</
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<
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">illo, ac toto circulo ſecundùm abſidem moueatur. </
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<
s
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">Eſto enim circulus maior ABCD, minor verò EFGH,
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circa idem centrum I ſupra planum KL. </
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<
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">Diameter au
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tem maioris circuli ſit AC, minoris EG. </
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<
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">Angulus item
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maioris ACD; minoris ve
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rò EGH. </
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<
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">Dicimus ergo an
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gulum ACD habere nu
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tum quendam, & inclina
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tionem ſupra angulum
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EGH, qua, & ſe ipſum, &
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illum procliuiorem reddit
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ad motum ſecundum abſi
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dem ſuper planum KL, ſi
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circulus ipſe maior per im
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pulſum motoris verſus L
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moueatur. </
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<
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id
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">Porrò angulus
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ACD, tam ex parte diametri, vel ſemidiametri, quàm ex
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parte portionis circumferentiæ, ex quibus tanquam ex duo
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bus lateribus conſtat, velocius, ac facilius poteſt moueri,
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quàm angulus EGH. </
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<
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">Ex parte quidem ſemidiametri, ſeu
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lateris recti; quia extremum C magis elongatur à centro
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I quàm G. </
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<
s
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N14111
">Ex parte verò portionis circunferentiæ, ſeu la
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teris curui; quia CD magis etiam diſtat ab eodem centro,
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ac minus curuatur, quàm GH;
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proinde retrahitur
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nè moueatur motu naturali, ad rectum ſcilicet magis ap
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propinquanti ideoque velocius ac facilius. </
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<
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">Sed angulus C
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inclinari non poteſt verſus L quin ſecum rapiat angulum
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G, quem intra ſe continet. </
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<
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">Igitur angulus ipſe C, nutum,
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& propenſionem habet ad angulum G, vt ſimul ac facilius
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moueantur modo quo diximus ad quemlibet impulſum
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motoris. </
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<
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">Cumque infiniti ſint huiuſmodi anguli in explica
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tis circulis, hinc ſit, vt rectè ex illis concludat Ariſtoteles,
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mobiliores eſſe circulos maiores, ac celerius moueri ab ea</
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