Monantheuil, Henri de, Aristotelis Mechanica, 1599

Table of figures

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                corpus rurſus parum tan­
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                gant. </s>
                <s id="id.001587">At ſi recti lineum eſ­
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                ſet, rectitudine ſua mul­
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                tum plani attingeret. </s>
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              <p type="head">
                <s id="id.001588">COMMENTARIVS. </s>
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              <p type="main">
                <s id="id.001589">Cvr quæ figurarum.]
                  <emph type="italics"/>
                In hoc capite redit Ariſtoteles ad fi­
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                guras rotundas, & quærit generaliter cauſas facilitatis motus
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                earum, eaſque quinque aßignat
                  <expan abbr="modicũ">modicum</expan>
                tactum, offenſationem exi­
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                guam, nutum dimidiæ partis, motum
                  <expan abbr="perpetuũ">perpetuum</expan>
                , motum naturalem.
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                <s id="id.001590">Tribus modis.]
                  <emph type="italics"/>
                Rotundorum motus ſimplex per ſpecies indu­
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                citur: ſed diminutè. </s>
                <s id="id.001591">Perfectè autem ſic. </s>
                <s id="id.001592">Rotundum omne per ſe mo­
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                uetur, vel ab alio. </s>
                <s id="id.001593">Per ſe quidem vt cælum, cuius nulla pars primò
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                moueri dici poteſt: omnes tamen ſimul in loco mouentur. </s>
                <s id="id.001594">Ab alio
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                verò, in quo etiam eius quod mouetur pars aliqua primò mouetur,
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                & quidem duobus modis progrediente axe: vel manente. </s>
                <s id="id.001595">Progre­
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                diente rurſus duobus modis, priore cum motus incipit à circumfe­
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                rentia, vt in rota ſuper planum volutata: poſteriore
                  <expan abbr="cũ">cum</expan>
                ab axe, vt in
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                rota per axem currus circumducta. </s>
                <s id="id.001596">Manente verò, rurſus duobus
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                modis, nempè axe moto in ſuo loco: vel etiam immoto. </s>
                <s id="id.001597">Et moto qui­
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                dem rurſus duobus modis, primo cum motus incipit à circumferen­
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                tia, vt in ſuccula per collopes verſa: ſecundo cum motus incipit ab
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                axe, vt in mola & rota qua acuuntur gladij: immoto vero, vt in
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                trochlea, cuius
                  <expan abbr="vertẽtis">vertentis</expan>
                per funes motus incipit à circumferentia: ſed
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                axe omnino immoto. </s>
                <s id="id.001598">Sicque legitima diuiſione & experimento ro­
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                tundorum motus ſex ſpecies infimæ reperiuntur, è quibus prima præ­
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                termiſſa eſt ab Ariſtotele, quia nihil ad Mechanicen, ſecunda præ­
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                termitti non debuit, niſi quia notißima.
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                <s id="id.001599">Vel enim.]
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                Cum rota currui ſubiecta eſt, tracto curru axis vnà
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                progreditur. </s>
                <s id="id.001600">Et cum rota quieſcere nequeat, quia axis tractus pre­
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                mit, & pondus adijcit non ad perpendiculum: ſic enim ad centrum
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                impelleret: ſed ad latus, quo trahitur, & pondere adiecto ad nutan­
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                tem dimidia ſui parte ſemper rotam, eò labitur. </s>
                <s id="id.001601">Facilius autem cir­
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                cumuertitur: quam trahatur, itaque procedit. </s>
                <s id="id.001602">Et ſic ibi quidem rota
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                ex circumferentia, quam abſidem hîc appellat, mouetur: ſed ab axe
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                </s>
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