Gassendi, Pierre, De motu impresso a motore translato epistulae duae, 1642

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              <s id="id.000334">
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              locitatis aſcendendo eſſe eundem reciprocè cum in­
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              cremento velocitatis deſcendendo: adeò vt, quem­
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              admodum in vltimo deſcenſus momento percurritur
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              ſpatium FA, ita in primo aſcenſus percurratur idem
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              ſpatium AF; & quemadmodum in penultimo deſ­
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              cenſus percurritur EF; ita in ſecundo aſcenſus FE, &
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              ita conſequenter, donec: vt in primo deſcenſus per­
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              curritur BC, ita in vltimo aſcenſus percurratur CB.
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              Quippe, cùm ex iam dictis perinde ſe habeant AF, &
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              FA, ac ſe habent GI, & QH; & perinde quoque C
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              B, & BC, ac MB, & BN, & ita de aliis. </s>
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            <p type="main">
              <s id="id.000335">Elicio
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              nonò,
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              cùm lapis per lineam parabolicam mo­
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              tus perueniat ex puncto G pro impetu quidem,
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              quem habet ſurſum, ad B, & pro eo, quem prorsùm,
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              ad H: percurrerere illum quidem æqualibus tempori­
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              bus ſecundum impetum priorem inæqualia ſpatia; ſed
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              ſecundum poſteriorem, æqualia. </s>
              <s id="id.000336">Conſtat quippe AF
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              altitudinem, ſeu
                <expan abbr="portionẽ">portionem</expan>
              perpendiculi reſpondentem
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              motui per GI, eſſe majorem, quàm FE altitudinem reſ­
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              pondentem motui per IK; cùm tamen GS. latitudo, ſeu
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              portio plani horizontalis reſpondens motui per
                <expan abbr="eandẽ">eandem</expan>
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              GI, ſit æqualis latitudini SV reſpondenti motui per
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              eandem IK; atque ita de cæteris. </s>
              <s id="id.000337">A deò vt motus quidem
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              ſursùm, vel deorsùm inæqualis ſit; ſed motus prorsùm,
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              vel ſecundum horizontem ſit planè æquabilis, atque
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              vniformis. </s>
            </p>
            <p type="main">
              <s id="id.000338">Elicio
                <emph type="italics"/>
              decimò,
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              cùm nauis poſſit moueri velociùs, &
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              tardiùs; & mali tamen altitudo ſemper eadem ſit; fieri
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              poſſe, vt linea parabolica efficiatur diuerſimodè nunc
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              apertior, nunc contractior; & nihilominùs percur-</s>
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          </chap>
        </body>
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