Borelli, Giovanni Alfonso, De motionibus naturalibus a gravitate pendentibus, 1670

Table of figures

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            <p type="main">
              <s id="s.000704">
                <pb pagenum="140" xlink:href="010/01/148.jpg"/>
                <arrow.to.target n="marg172"/>
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              tice, vbi velociori curſu fugit. </s>
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            <p type="margin">
              <s id="s.000705">
                <margin.target id="marg172"/>
              Cap. 4. poſi­
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              tiuam leui­
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              tatem noņ
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              dari.</s>
            </p>
            <p type="main">
              <s id="s.000706">Hinc colligitur, quòd ex figura pyramidali, & a­
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              cuminata flammæ lucernæ non euincitur eam à vi
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              intrinſeca leuitatis ſursùm impelli. </s>
              <s id="s.000707">Cùm è contrà de­
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                <arrow.to.target n="marg173"/>
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              claratum ſit, qua ratione abſque poſitiua leuitate ab
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              expreſſione aeris grauioris ambientis ſursùm expel­
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              latur, pariterque oſtenſa eſt cauſa prædictæ eius fi­
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              guræ acuminatæ & in verticem deſinentis, quæ non
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              pendet à leuitate propria, ſed ab expreſſione aeris
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              maxima velocitate facta in eius acumine magis
                <expan abbr="accẽ-ſo">accen­
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                ſo</expan>
              , & hoc confirmatur ex eo quòd multotiès flammæ
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              candelarum non ſunt pyramidales, ſed rotundæ, aut
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              oblongæ, & ouales, & hoc clarè conſpicitur quandò
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              virga illa fumoſa, quæ eructatur ab infima lucerną
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              nupèr extincta, denuò accenditur à contactu alte­
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              rius flammæ in notabili diſtantia ab inferiori cande­
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              la, & tunc fumus inflammatus per longitudinem to­
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              tius fumi ſubiecti deorsùm labitur vſque ad
                <expan abbr="elicniũ">elicnium</expan>
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                <arrow.to.target n="marg174"/>
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              ſubiectæ lucernæ, conſpiciturque euidentèr figura
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              illius fumi
                <expan abbr="accẽſi">accenſi</expan>
              perfectè
                <expan abbr="rotũda">rotunda</expan>
              , imò
                <expan abbr="">cum</expan>
              primò lu­
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              cerna accenditur, eius flamma rotunda eſt, & poſtea
                <lb/>
              verticem conicum acquirit. </s>
              <s id="s.000708">in flammis verò camini
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              non obſeruantur formæ pyramydales, ſed multipli­
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              citèr diuiſæ multotiès radios, ſeù linguas referunt,
                <lb/>
              & aliquando rotundæ conſpiciuntur, & ſic eleuan­
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              tur per aliquod ſpatium. </s>
              <s id="s.000709">Sed de his ſatis. </s>
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