Tyndall, John, 1820-1893 · London : Longmans, Green · leaf 272
g, and continue to sing. FLAME EXCITED BY EXTRAXEOUS SOUXT). 249 When a silent flame, capable of being excited in themanner here described, is looked at in a moving mirror, itproduces there a continuous band of light. Nothing canbe more beautiful than the sudden breaking up of thisband into a… … and /, fig. 123, the tube over f being 10-| inches, andthat over/ 12 inches long. The shorter tube is claspedby a paper slider s. The flame / is now singing, but theflame /, in the longer tube, is silent. I raise the paperslider which surrounds /, so as to lengthen the tube,and on approaching the…
Sound
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