Gregg, J. B. [from old catalog] · Ada, Ohio, The University herald press · leaf 71
itudes. 3. Timber. Pass illuminating gas into the flame vibrator, and ignitethe jet. Attach a mirror to a rota-tor, and place it so that the flamecan be distinctly seen in the mirroras it rotates. Now sing any vowelsound into the mouthpiece while the mirror rotates. Simi-larly obtain the manometric… … Flame Vibrator. 62 SOUND. EXPERIMENT 28. VELOCITY OF SOUND. Method.—Place a glass tube 2 cm. in diameter and about40 cm. long, in a jar of water about 35 cm. deep. Vibrate atuning fork near the upper end of the tube, and, by changingthe length of the air column, find the shortest air column…
Physics
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