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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etiam magis fibræ ex quibus vas VV conſtat agitantur, ma-
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jorque agitatio aëri exteriori communicatur.</
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<
s
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xml:space
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">Si cetera maneant, elaſticitas autem augeatur, in ea-
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dem ratione cum aucta elaſticitate minuitur quidem den-
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ſitas , ſed demonſtramus in ſcholio, huic capiti
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cto, ſoni intenſitatem augeri in ratione quam ſequitur
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radix quadrata elaſticitatis. </
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<
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cæteris paribus, ſoni intenſitatem majorem eſſe quàm Hie-
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me.</
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<
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7.</
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">Campana A in vitro ſuſpendatur, habeatque, aperto e-
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piſtomio, aër in vitro communicationem cum aëre exterio-
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fig. 5.</
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ri. </
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">determinetur diſtantia ad quam ſo-
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nus audiri poteſt, Calefacto vitro cum aëre interno, & </
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Experimento repetito, ad majorem diſtantiam audietur ſo-
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nus.</
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<
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">1196.</
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fibrarum corporis ſonum edentis, id eſt, ex numero unda-
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rum certo tempore in aëre productarum; </
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numero percuſſionum in aurem, ſenſatio diverſa in mente
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datur.</
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<
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">1197.</
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eo magis acutus dicitur, quo magis crebri ſunt recurſus
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in aëre; </
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">eo vero gravior, quo minor eſt undarum nume-
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rus.</
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<
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">1198.</
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undarum numeri, quæ eodem tempore in aëre dantur.</
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<
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<
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">1199.</
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eundem edit ſonum, ſive per majus ſive per minus ſpatium
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eat, & </
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tus in aëre, qui eodem tempore nervum auditorium affi-
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ciunt.</
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nes peragant, nulla inter tonos datur differentia, & </
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