Gassendi, Pierre, De proportione qua gravia decidentia accelerantur, 1646

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              <s id="s.000543">
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              ſimè determinet.
                <emph.end type="italics"/>
              </s>
              <s id="s.000544"> Pergis declarando ecqua illa ſie
                <lb/>
                <emph type="italics"/>
              Aio igitur, ita eſſe à natura conſtitutum, vt globus quilibet,
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              tuiuſcumque materiæ, ex vnius diametri altitudine cadens,
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              duplum ſui ponderis, hoc eſt, præter pondus quod ſine im­
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              petu in æquilibrio retineret, aliud ſibi æquale attollat; &
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              ex altitudine duarum diametrorum, triplum; ex tribus dia­
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              metris, quadruplum; & ita deinceps: adeo vt ex quauis
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              altitudine cadens, ſemper (vltra æquilibrium) toties pro­
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              prium pondus multiplieatum attollat, quot in tota, vnde
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              cadit, altitudine diametri continentur.
                <emph.end type="italics"/>
              </s>
              <s id="s.000545"> Subiicis, rem exag­
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              gerando,
                <emph type="italics"/>
              Mirum ſanè quòd globus, cuius figuram, vt­
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              pote ſimplicißimam, capacißimàmque, natura ſingulariter
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              amare videtur, menſuram, ac modum, tam velocitatis
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              motus in deſcenſu grauium, quàm virtutis eius motricis,
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              quæ in eadem velocitate continetur, ſuâ nobis diametro exhi­
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              beat: adeo vt ex decem, aut centum diametrorum altitudine
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              decidens, eum acquirat impetum, qui attollendis decem, aut
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              centum ſimilibus globis, in altera lance impoſitis, ſufficere
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              poßit, ſi materiæ conditio id patiatur.
                <emph.end type="italics"/>
              </s>
              <s id="s.000546"> Addis & quid
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              ipſe obſeruaueris.
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              Expertus ſum ego,
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              inquis,
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              globum plum­
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              beum vnius vnciæ, ex altitudine ſex pedum, ſiue dia­
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              metrorum centum quatuordecim cadentem, vncias toti­
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              dem vltra æquilibrium, hoc est, libras ſeptem, &
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              vncias tres in altera lance impoſitas, ſuo impetu eleuaſſe,
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              non ſine ingenti eorum qui præſentes aderant admiratione,
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              ac stupore.
                <emph.end type="italics"/>
              </s>
              <s id="s.000547"> Tum & hæc habes.
                <emph type="italics"/>
              Porrò ſi id in paucis
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              diametris experiri placuerit, non admodùm magna opus
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              erit diligentia: at ſi è maiore altitudine idem tentare pla­
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              cuerit, tum in hac, vt in cæteris Phyſicis experientiis,
                <emph.end type="italics"/>
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