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

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91 LXXXIII
92 LXXXIV
93 LXXXV
94 LXXXVI
95 LXXXVII
96 LXXXVIII
97 LXXXIX
98 XC
99 XCI
100 XCII
101 XCIII
102 XCIV
103 XCV
104 XCVI
105 XCVII
106 XCVIII
107 XCIX
108 C
109 CI
110 CII
111 CIII
112 CIV
113 CV
114 CVI
115 CVII
116 CVIII
117 CIX
118 CX
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            che in piccola diſtanza ve ne ſono dell’
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            altre di oppoſta direzione. </s>
            <s xml:id="echoid-s453" xml:space="preserve">Nell’ aria ſuc-
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            cede l’iſteſſo, ed alle volte crederemo a
              <lb/>
            cagion di eſempio, che ſpiri un Greco
              <lb/>
            levante, quando non ſarà che un Oſtro
              <lb/>
            ed un Ponente, che ſi urtano con egual
              <lb/>
            forza inſieme. </s>
            <s xml:id="echoid-s454" xml:space="preserve">Non oſtante che vedeſi
              <lb/>
            andare il ſuono con eguale celerità a
              <lb/>
            diverſe altezze del Barometro, chi può
              <lb/>
            ſicuramente dire, come taluno benchè
              <lb/>
            diligentiſſimo oſſervatore ha detto, che
              <lb/>
            il differente peſo dell’ aria non muta pun-
              <lb/>
            to la celerità del ſuono, ſe non ſi fan-
              <lb/>
            no le eſperienze in diſtanze grandiſſime,
              <lb/>
            e non ſi computi ancora qualunque al-
              <lb/>
            terazione che nel viaggio può avere ſof-
              <lb/>
            ferta il ſuono dai varj venti che può
              <lb/>
            avere incontrato? </s>
            <s xml:id="echoid-s455" xml:space="preserve">Quando è mai quel
              <lb/>
            tempo in cui l’ aria non abbia alcun mo-
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            vimento?</s>
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          </p>
          <p>
            <s xml:id="echoid-s457" xml:space="preserve">Da tutte queſte coſe ella può ben </s>
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