The House Fly.
Sir John Luhfoock says that the house fly. which produces the sound F, vibrates its wings 20.100 times a minute or 335 a second ; and the bee, which makes the sound of A, as many as 26,000, or over 430 a second. On Qic contrary, a tired bee hums on E, and vfbratee tts wings only 3W times a second. Marey has succeeded in confirming these numbers. He fixed a fly so that the tip of tke wing just touched a cylinder covered with smoked paper moved by chxjjpworic. F:«.ch stroke of <the wing oauaed a perceptible mark, and there were actually 336 strokes in a second, agreeing almost exactly with the number inferred from? | the note produced.
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Bibliographic details
Bruce Herald, Volume XXX, Issue 3099, 15 September 1899, Page 6
Word Count
121The House Fly. Bruce Herald, Volume XXX, Issue 3099, 15 September 1899, Page 6
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