Fabri, Honoré, Tractatus physicus de motu locali, 1646

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            <p id="N21CB1" type="main">
              <s id="N21CB3">
                <pb pagenum="282" xlink:href="026/01/316.jpg"/>
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              per ſe.
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              </s>
              <s id="N21CC3"> Probatur primò, quia vtraque minimo impetu moueri poteſt per
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              Th. 21. Secundò, quia addita minima vi impetus in F, & minima in A
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              tàm facilè maior rota deſcendit, quàm minor, quia æqualiter tollitur
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              æquilibrium vtriuſque: dixi per ſe, quia maior rota propter maius pon­
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              dus maiore affrictu motum impedit. </s>
            </p>
            <p id="N21CCF" type="main">
              <s id="N21CD1">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
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              23.
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              </s>
            </p>
            <p id="N21CDD" type="main">
              <s id="N21CDF">
                <emph type="italics"/>
              Poteſt vis aliqua applicata rotæ in A v.g. rotam mouere in eodem ſitu ver­
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              ticali; licèt nullum impetum producat.
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              </s>
              <s id="N21CEB"> Probatur, quia vis minima poteſt
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              deprimere rotam ABCD. v.g. per Th.21. ſed vis minima non poteſt
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              producere impetum in qualibet rota, vt patet; </s>
              <s id="N21CF5">nec enim producere po­
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              teſt, niſi in tota rota producat per Th.33. lib. primo; ſed vis minima im­
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              petus tot partes impetus, producere non poteſt, quot eſſent neceſſariæ, vt
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              omnibus partibus rotæ diſtribuerentur. </s>
            </p>
            <p id="N21CFF" type="main">
              <s id="N21D01">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              24.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N21D0D" type="main">
              <s id="N21D0F">
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              Hinc egregium paradoxum; </s>
              <s id="N21D14">poteſt aliquid mouere rotam, & non agere in
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              rotam
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              ; </s>
              <s id="N21D1D">quia vis mouens non poteſt in rotam agere, niſi impetum in ea
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              producat, vt patet; </s>
              <s id="N21D23">ſed poteſt illa vis rotam mouere licèt impetum in ea
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              non producat per Th.23. igitur mouere, & non agere: </s>
              <s id="N21D29">quod quomodo
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              fiat facilè explicari poteſt; quippè illa vis ponderis. </s>
              <s id="N21D2F">v.g. quæ accedit pun­
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              cto A cum toto pondere ſemicirculi BA DE, grauitatione communi
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              præualet grauitationi alterius ſemicirculi rotæ BC DE; </s>
              <s id="N21D39">quia ſcilicet
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              maior eſt; ſic pondus vnius ſcrupuli ſuperpoſitum ingenti rupi non pro­
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              ducit in rupe impetum, ſed ſi fortè appendatur rupes, ſimul cum illa gra­
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              uitat, quod facilè concipi poteſt. </s>
            </p>
            <p id="N21D43" type="main">
              <s id="N21D45">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              25.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N21D51" type="main">
              <s id="N21D53">
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              Cum deſcendit deorſum ſemicirculus BA DE, attollitur ſurſum ſemicir­
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              culus oppoſitus
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              ; </s>
              <s id="N21D5E">quia ſcilicet impetus illius producit in iſto alium impe­
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              tum; </s>
              <s id="N21D64">nec enim corpus graue aſcendit ſurſum ſua ſponte in medio leuio­
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              re; igitur ab extrinſeco; </s>
              <s id="N21D6A">ſed nulla eſt alia cauſa applicata præter impe­
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              tum ſemicirculi deſcendentis; </s>
              <s id="N21D70">igitur ab eo producitur hic impetus,
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              iſque omninò æqualis; quia ſcilicet vterque mouetur motu æquali. </s>
            </p>
            <p id="N21D76" type="main">
              <s id="N21D78">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              26.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N21D84" type="main">
              <s id="N21D86">
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              Hinc impetus deorſum producere poteſt impetum ſurſum
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              ; quippe
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              ad aliam lineam determinare non poteſt, quod valdè paradoxum eſt. </s>
            </p>
            <p id="N21D91" type="main">
              <s id="N21D93">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
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              27.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N21D9F" type="main">
              <s id="N21DA1">
                <emph type="italics"/>
              Hinc impetus vnius partis mobilis continui poteſt impetum ſimilem produ­
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              cere in alia parte eiuſdem mobilis
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              ; vt patet ex dictis, quod tantùm locum
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              habet in motu circulari. </s>
              <s id="N21DAE">Diceret aliquis, igitur in motu recto etiam lo­
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              cum habebit. </s>
              <s id="N21DB3">Reſpondeo negando, alioqui minima potentia quodlibet
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              pondus motu recto moueret etiam nullo adhibito mechanico organo; </s>
              <s id="N21DB9">
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              quia modo produceretur tantulus impetus in aliqua parte, hic produce­
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              ret alium, & hic alium, immò vterque ſecundo inſtanti alium produce-</s>
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          </chap>
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