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

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        <div xml:id="echoid-div9" type="section" level="1" n="8">
          <p>
            <s xml:id="echoid-s383" xml:space="preserve">
              <pb o="XCI" file="0099" n="99"/>
            caſione per trovarne, o almen cercarne
              <lb/>
            delle altre. </s>
            <s xml:id="echoid-s384" xml:space="preserve">Avendo veduto eſſere dopo
              <lb/>
            cominciata una nebbia denſiſſima coſtan-
              <lb/>
            te per alcuni giorni verſo la ſera, de-
              <lb/>
            terminai di ſervirmene nell’uſo fiſico, e
              <lb/>
            di provare anche in queſta coſtituzione
              <lb/>
            di aria la celerità del ſuono. </s>
            <s xml:id="echoid-s385" xml:space="preserve">Ma non
              <lb/>
            era sì agevole queſta ſeconda eſperienza
              <lb/>
            come furono le prime, giacchè nella ce-
              <lb/>
            cità della nebbia denſiſsima non era poſ-
              <lb/>
            ſibile vedere il foco lontano tredici mi-
              <lb/>
            glia. </s>
            <s xml:id="echoid-s386" xml:space="preserve">Eccole il metodo di cui io mi
              <lb/>
            ſervij. </s>
            <s xml:id="echoid-s387" xml:space="preserve">Feci portare al conſueto Conven-
              <lb/>
            to la giornata dei dodici di Febbrajo,
              <lb/>
            che era talmente nebbioſa, che non di-
              <lb/>
            ſtingueanſi per modo alcuno gli oggetti
              <lb/>
            ne pure nella piccola diſtanza di dieci
              <lb/>
            o dodici piedi; </s>
            <s xml:id="echoid-s388" xml:space="preserve">feci portare dico il ſoli-
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            to orologio, ed un cannone aſſai groſ-
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            ſo, conceſſomi dalla bontà del Sig. </s>
            <s xml:id="echoid-s389" xml:space="preserve">Con-
              <lb/>
            te Filippo Aldrovandi, e del Sig. </s>
            <s xml:id="echoid-s390" xml:space="preserve"/>
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