Fabri, Honoré, Tractatus physicus de motu locali, 1646

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          <chap id="N15AC3">
            <pb pagenum="130" xlink:href="026/01/162.jpg"/>
            <p id="N18E30" type="main">
              <s id="N18E32">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              118.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N18E3E" type="main">
              <s id="N18E40">
                <emph type="italics"/>
              Globi æquales diuerſæ materiæ inæqualiter deſcendunt
                <emph.end type="italics"/>
              ; </s>
              <s id="N18E49">quia ſcilicet alte­
                <lb/>
              rum eſt grauius, quod ſuppono; </s>
              <s id="N18E4F">igitur æqualis eſt reſiſtentia, & vires
                <lb/>
              inæquales; </s>
              <s id="N18E55">igitur non eſt eadem proportio actiuitatis: & reſiſtentiæ; igi­
                <lb/>
              tur non eſt æqualis motus per Ax.5. </s>
            </p>
            <p id="N18E5C" type="main">
              <s id="N18E5E">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              119.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N18E6A" type="main">
              <s id="N18E6C">
                <emph type="italics"/>
              Globi otiam inæquales diuerſæ materiæ inæqualiter deſcendunt
                <emph.end type="italics"/>
              ; quod de­
                <lb/>
              monſtro; </s>
              <s id="N18E77">quia globi eiuſdem materiæ inæqualiter deſcendunt per Th.
                <lb/>
              113. ſed duo globi æquales diuerſæ materiæ deſcendunt inæqualiter per
                <lb/>
              Th.118. igitur, & inæquales; quod dico de globis', dicatur de cubis, &
                <lb/>
              aliis figuris ſimilibus. </s>
            </p>
            <p id="N18E82" type="main">
              <s id="N18E84">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              120.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N18E90" type="main">
              <s id="N18E92">
                <emph type="italics"/>
              Globus materiæ leuioris poteſt deſcendere velociori motu quam parallelipe­
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              dum grauioris
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              ; </s>
              <s id="N18E9D">conſtat experientia; ratio eſt, quia cum globus ferreus deſ­
                <lb/>
              cendat velociùs, quàm ligneus per Th. 118. in data ratione, putà (1/100)
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              haud dubiè bractea ferri non modo (1/100) tardiùs deſcendet, verùm etiam
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              (20/100) in quo non eſt difficultas. </s>
            </p>
            <p id="N18EA7" type="main">
              <s id="N18EA9">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              121.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N18EB5" type="main">
              <s id="N18EB7">
                <emph type="italics"/>
              Hinc ſi mutetur figura poſſunt grauia diuerſæ materiæ ita deſcendere, vn
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              vel grauius, vel leuius, vel grauioris materiæ, vel leuioris velociùs deſcendat
                <emph.end type="italics"/>
              ;
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              vt conſtat ex regulis præſcriptis. </s>
            </p>
            <p id="N18EC4" type="main">
              <s id="N18EC6">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              122.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N18ED2" type="main">
              <s id="N18ED4">
                <emph type="italics"/>
              Globi æquales diuerſæ materiæ,
                <emph.end type="italics"/>
              v. g. ligneus, & plumbeus deſcendunt
                <lb/>
              inæqualiter iuxta proportionem grauitatis, & reſiſtentiæ medij compa­
                <lb/>
              ratæ cum vtroque, v.g. plumbo detrahitur (1/4800); ligno verò (8/300) v. g. ſi
                <lb/>
              grauitas ligni ſit ad grauitatem aëris vt 300.ad 1. & plumbi vt 4800. ad
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              1. ſit enim altitudo 33. pedum 4. digit. </s>
              <s id="N18EEF">reducantur in digitos erunt 400.
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              in lineas 4800. igitur detrahetur vna linea ſpatij plumbeo globo; </s>
              <s id="N18EF5">ligneo
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              verò vnus digitus cum 4. lineis; ſed quis hoc obſeruet? </s>
            </p>
            <p id="N18EFB" type="main">
              <s id="N18EFD">
                <emph type="center"/>
                <emph type="italics"/>
              Theorema
                <emph.end type="italics"/>
              123.
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N18F09" type="main">
              <s id="N18F0B">
                <emph type="italics"/>
              Corpus graue ſpongioſum longè tardiùs deſcendit
                <emph.end type="italics"/>
              ; </s>
              <s id="N18F14">quia aër in perexigua
                <lb/>
              illa foramina intenſus frangitur, reſilit, ac proinde motum impedit; talis
                <lb/>
              eſt medulla ſambuci, ſpongia, ſtupa, &c. </s>
              <s id="N18F1C">immò aſperum corpus tardiùs
                <lb/>
              deſcendit, quòd ſcilicet aër ab aſperioribus illis ſalebris reſiliens mo­
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              tum retardet, hinc ſibilus ille auditur &c. </s>
            </p>
            <p id="N18F23" type="main">
              <s id="N18F25">
                <emph type="center"/>
                <emph type="italics"/>
              Scholium.
                <emph.end type="italics"/>
                <emph.end type="center"/>
              </s>
            </p>
            <p id="N18F31" type="main">
              <s id="N18F33">Ex his conſtat quid dicendum ſit de motu corporum grauium in
                <lb/>
              medio, ſiue ſint eiuſdem materiæ, & ſimilis figuræ, maioris vel minoris,
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              vel æqualis; </s>
              <s id="N18F3B">tunc enim deſcendunt æqualiter contra Galileum, ſiue
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              ſint diuerſæ materiæ, & ſimilis figuræ, æqualis, vel inæqualis, </s>
            </p>
          </chap>
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