Fabri, Honoré, Tractatus physicus de motu locali, 1646

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              tentia applicata in B, ita vt in puncto B producatur impetus eiuſdem
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              perfectionis, de quo ſuprà: </s>
              <s id="N225A9">ſi mouetur motu circulari circa aliquod cen­
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              trum v. g. circa centrum H, & punctum B conficiat arcum BD æqua­
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              lem rectæ b I, vel BL quam æquali tempore B vel A antè percurrebant
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              motu recto; </s>
              <s id="N225B7">certè totus cylindrus BH acquiret tantùm ſpatium BHD
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              motu circulari circa centrum H; </s>
              <s id="N225BD">ſed motu recto acquiſiuit ſpatium re­
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              ctanguli BK, quod maius eſt, vt patet; </s>
              <s id="N225C3">igitur motus circularis circa H
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              cylindri BH eſt ad rectum, vt ſector BHD ad rectangulum BK; </s>
              <s id="N225C9">igitur
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              facilitas motus circularis eſt ad facilitatem motus recti præſentis, vt re­
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              ctangulum BK ad ſectorem BHD; </s>
              <s id="N225D1">quænam verò ſit hæc proportio pa­
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              tet ex Cyclometria, ſuppoſitâ ratione Archimedis periphæriæ ad diame­
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              trum; </s>
              <s id="N225D9">igitur cum cylindrus impulſus in B faciliùs moueri poſſit motu
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              circulari, quàm recto, vt conſtat ex dictis; </s>
              <s id="N225DF">& cùm eo motu moueatur,
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              quo faciliùs moueri poteſt; </s>
              <s id="N225E5">modò poſſit ad illum determinari, non mirum
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              eſt ſi eo moueatur, & minor impetus producatur in eodem cylindro
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              BH; debet autem eſſe aliquod centrum huius motus, quod determina­
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              bimus paulò pòſt, poſtquam breuiter exilem quamdam objectionem de
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              impetu refutauerimus. </s>
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              <s id="N225F3">Itaque obiiciunt aliqui, impetum non produci ad extra ab impetu; </s>
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              quia ſcilicet impetus habet iam effectum ſcilicet motum; </s>
              <s id="N225FC">igitur aliud
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              munus non eſt illi imponendum; </s>
              <s id="N22602">igitur non producit alium effectum;
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              igitur non eſt cauſa impetus. </s>
            </p>
            <p id="N22608" type="main">
              <s id="N2260A">Reſpondeo primò, calor eſt cauſa rarefactionis; </s>
              <s id="N2260E">igitur non producit
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              alium calorem, quia habet iam vnum effectum; ſi tuum argumentum
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              concludit, meum quoque concludet. </s>
              <s id="N22616">Reſpondeo ſecundò, anima produ­
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              cit viſionem, ergo auditionem producere non poteſt, cùm iam habeat
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              vnum effectum: </s>
              <s id="N2261E">Dices, eandem cauſam poſſe habere plures effectus; cur
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              igitur negas de impetu? </s>
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              <s id="N22626">Reſpondeo tertiò directè, motum eſſe effectum impetus ad intra, quem
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              præſtat in ſuo ſubjecto; </s>
              <s id="N2262C">igitur eſt effectus formalis ſecundarius; </s>
              <s id="N22630">nec
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              alius eſſe poteſt, vt lib.1. demonſtrauimus; </s>
              <s id="N22636">at verò impetus eſt effectus
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              alterius impetus ad extra; </s>
              <s id="N2263C">igitur impetus eſt cauſa efficiens impetus, id­
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              que ad extra & cauſa formalis, vel exigitiua motus ad intra; </s>
              <s id="N22642">ſicut calor
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              eſt cauſa formalis, vel exigitiua rarefactionis ad intra, cauſa verò effi­
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              ciens alterius caloris ad extra; </s>
              <s id="N2264A">& verò nullo argumento probabis calo­
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              rem à calore produci, quo ego non probem impetum ab impetu produ­
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              ci; </s>
              <s id="N22652">igitur impetus eſt cauſa alterius impetus; </s>
              <s id="N22656">quia phyſicè loquendo il­
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              lud vocamus cauſam, ex cuius applicatione ſequitur neceſſariò effectus; </s>
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              atqui applicato corpore ſolo ſine impetu nullus impetus producitur ad
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              extra, vt patet; </s>
              <s id="N22663">applicato verò cum impetu, producitur ſtatim alius im­
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              petus; </s>
              <s id="N22669">igitur ipſe impetus eſt cauſa: </s>
              <s id="N2266D">nec dicas requiri, vt conditionem; </s>
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              quia primò, nullum eſſet munus huius conditionis; nec enim applica­
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              ret cauſam ſubjecto, nec remoueret vllum impedimentum. </s>
              <s id="N22678">Secundò di­
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              cam ſimiliter calorem eſſe conditionem. </s>
              <s id="N2267D">Tertiò, dicerem etiam eſſe con­
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              ditionem ad motum. </s>
              <s id="N22682">Quartò, quis dicat corpus graue producere impe-</s>
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