Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 28
nsmitted to theair outside. Permitting the air to re-enter the jar with as littlenoise as possible, you immediately hear a feeble sound,which grows louder as the air becomes more dense, untilfinally every person in this large assembly distinctly hearsthe ringing of the bell.^ Sir John Leslie found… … ^ By directing the beam of an electric lamp on glass bulbs filled witha mixture of equal volumes of chlorine and hydrogen, I have caused thebulbs to explode in vacuo and in air. The difference, though not so strik-ing as I at first expected, was perfectly distinct. 8 LECTURE I. the bell. On…
Sound
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![An illustration from Essai de physique, par Mr. Pierre van Musschenbroek ... avec une description de nouvelles sortes de machines pneumatiques, et un recueil d'expériences par Mr. J. v[an] M[usschenbroek] Traduit du hollandois par Mr. Pierre Massuet .. (1751)](https://img.insideoutlibrary.com/img/200/ia-essaidephysiquep02muss-436-70.webp)
