Bianconi, Giovanni Lodovico, Due lettere di fisica al signor marchese Scipione Maffei, 1746

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            <s xml:id="echoid-s417" xml:space="preserve">
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            in pratica a legge coſtante. </s>
            <s xml:id="echoid-s418" xml:space="preserve">Quindi for-
              <lb/>
            ſe tante differenze anche in avvenire ſi
              <lb/>
            troveranno, quante ſaranno le oſſerva-
              <lb/>
            zioni che ſu queſto ai Fiſici dopo di
              <lb/>
            noi verrà in penſiero di fare. </s>
            <s xml:id="echoid-s419" xml:space="preserve">Ella abbia
              <lb/>
            la bontà di meco conſiderarne alcuna,
              <lb/>
            e vedrà che forſe non molto lunge dal
              <lb/>
            vero mi appongo.</s>
            <s xml:id="echoid-s420" xml:space="preserve"/>
          </p>
          <p>
            <s xml:id="echoid-s421" xml:space="preserve">La velocità del ſuono eſſendo eguale
              <lb/>
            alla celerità dell’onde ſonore delle par-
              <lb/>
            ticelle dell’aria, anzi ben conſiderando-
              <lb/>
            la, non eſſendo il ſuono altro che una
              <lb/>
            ſucceſſiva comunicazione di moto per tut-
              <lb/>
            te le particelle di aria poſte d’intorno
              <lb/>
            al corpo ſonante, ne ſeguirà che qua-
              <lb/>
            lunque cauſa capace di alterare la cele-
              <lb/>
            rità di queſte onde ſonore, altererà al-
              <lb/>
            tresì la celerità del ſuono. </s>
            <s xml:id="echoid-s422" xml:space="preserve">Si moſtra nel-
              <lb/>
            la Fiſica, che l’ito e redito delle par-
              <lb/>
            ticelle elaſtiche dell’aria che muovonſi
              <lb/>
            nella legge degli archi di Cicloide, </s>
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