Gravesande, Willem Jacob 's
,
Physices elementa mathematica, experimentis confirmata sive introductio ad philosophiam Newtonianam; Tom. 1
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PHYSICES ELEMENTA
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ſingulis; </
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xml:space
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ticularum ex quibus conſtat, & </
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<
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æquales vires habent æquales, ſivelocitate eâdem ferantur;
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">idcirco in corporibus æque velocibus ſunt vires, ut nume-
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ri particularum æqualium materiæ in ſingulis.</
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<
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">Aſſeris AB longitudo eſt unius pedis, latitudo decem
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pollicum, craſſities pollicum duorum. </
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<
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fig. 5.</
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a b c d ad profunditatem unius pollicis cum ſemiſſe, & </
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cum pedibus EE, EE, quibus ſuſtinetur firmiter conne-
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ctitur.</
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<
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">Pedibus hiſce etiam quatuor ſuſtinentur columnæ ligneæ
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CD, CD, CD, CD, ad angulos ipſius aſſeris. </
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mnarum altitudo excedit paululum pedestres. </
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eodem, juxta latitudinem aſſeris poſito, inhærent, regulis
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minoribus ee, ee, f, f, g, g, b, b, junguntur ita, ut
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regula RR, tranſiens inter minores reſpondentes, parallela
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ſit ſuperficiei aſſeris.</
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ære formantur; </
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hi ſinguli ex hemiſphæriis duobus A, a, & </
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ehleâ junguntur. </
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num, duo, tria.</
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<
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geneâ, exacte repletur cavitas a b c d, & </
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quod ex argillâ prominet, abraditur, ut hujus ſuperficies
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non modo exacte plana ſit, ſed & </
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illo quod ex aſſeris ſuperficie ſupereſt, cavitatiſque oras
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format.</
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<
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nem, excavata eſt, ut globum quemcunque ex memoratis
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recipiat, qui in G videtur, dum manu M tenetur. </
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hoc ſitu inferius globi punctum ab argillæ ſuperficie diſtat
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pollicibus novem. </
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eat inter regulas f, f, f, f, ſi inter regulas g, g, tripla;</
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