Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 242
the gas, causes the latterto expand, and which, when it is intercepted, enablesthe gas to contract, such expansions and contractions, ifthey succeed each other with sufl&cient rapidity, may be EXPANSION OF GASES BY EADIANT HEAT. 219 expected to produce sonorous pulses or musical sounds.If,… … That gases absorb radiant heat, and suffer consequentthermal expansion in very diflferent degrees, may bereadily shown by the apparatus now to be described.T T, fig. 115, is a glass tube 4 inches long and 3 inches in 220 LECTURE V. diameter. It is provided with brass flanges at the endswhich reduce…
Sound
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