Guevara, Giovanni di, In Aristotelis mechanicas commentarii, 1627

Table of figures

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              quam à centro habet extremum diametri amplioris circu­
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              li, aut rotæ reſpectu minoris, ob principium illud ſæpè re­
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              petitum, & à nobis pluries explicatum, quod iterum in libra
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              hic exemplificat. </s>
              <s id="N1440F">Quoniam (inquit) ſicut exactiores ſunt
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              maiores libræ, quam minores,
                <expan abbr="magisq.">magisque</expan>
              aut facilius mouen­
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              tur; ita maiores circuli, vel rotæ, æquali exiſtente onere,
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                <expan abbr="cæterisq.">cæterisque</expan>
              paribus, vt dictum eſt: Cum rotæ ex totidem li­
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              bris, ſeu brachijs libræ videantur compactæ, quot ſunt dia­
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              metri ex quibus conſtant. </s>
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              <s id="N14425">Diximus autem cæteris paribus; nam vt rectè Baldus ad­
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              monuit, ſi rota maior corpulentiorem proportionaliter ha­
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              beat axem, quàm minor, non mouetur velocius. </s>
              <s id="N1442C">Siquidem
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              quo maior fuerit diameter rotæ reſpectu diametri ſui axis,
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              eò facilius mouebitur: quo verò minor, eò difficilius. </s>
              <s id="N14433">Magis
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              enim retardat, ac impedit axis craſſior, quam ſubtilior. </s>
              <s id="N14438">Quod
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              adhuc (aliter tamen quàm ille) poſſumus probare; Nimirum
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              quia ambitus ſubtilioris axis per minorem ſui partem attin­
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              git rotam, quàm ambitus craſſioris: & ſic minus impedit
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              circumuolutionem. </s>
              <s id="N14443">Itemque poſt punctum, quod eſt in
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              ſummitate circumferentiæ, & cui potiſſimum onus rotæ in­
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              cumbit, partes vtrinque circulariter declinantes, decliuio­
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              res ſunt in axe ſubtiliori; eo quod minor circumferentia
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              magis curuetur; ſicut è contra quæ amplior eſt, rectius pro­
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              cedat, ſiue magis rectæ appropinquetur. </s>
              <s id="N14450">Cumque partes
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              decliuiores, minus valeant onus ſuſtinere nè dilabatur,
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              quàm partes, quæ minus declinant; hinc fit, vt ſubtilior
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              axis ex decliuioribus conſtitutus, minus retardet, aut impe­
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              diat rotæ circumuolutionem. </s>
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            <p id="N1445B" type="main">
              <s id="N1445D">Cæterum data axium paritate, præter cauſam ab Ariſto­
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              tele aſſignatam adhuc duplici ex capite reperiemus, maio­
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              res rotas citiùs, ac faciliùs quàm minores conuolui. </s>
              <s id="N14464">Primò
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              nimirum quia per maiores diametros tanquam per longio­
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              res vectes aptius ſuperatur impedimentum, quod experimur
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              tam ex parte axis, quàm ex parte foraminis rotæ vbi inditur
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              ipſe axis, ad expeditum motum circumuolutionis illius,
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              dum propter vtriuſque corporis aſperitatem adinuicem co-</s>
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