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A trailing edge tone occurs when an exterior flow passes over a trailing edge. There is a whistle that is a combination of an edge tone and a trailing-edge tone and might be called a wake-edge tone. It occurs in rotating circular saws under idling conditions and may be called the circular-saw whistle. Under load conditions, blade vibration ...
An offstage whistle audible to the audience in the middle of a performance might also be considered bad luck. Transcendental whistling ( chángxiào 長嘯) was an ancient Chinese Daoist technique of resounding breath yoga, and skillful whistlers supposedly could summon supernatural beings, wild animals, and weather phenomena.
Whistled languages are linguistic systems that use whistling as a form of speech and facilitate communication between individuals. More than 80 languages have been found to practice various degrees of whistling, most of them in rugged topography or dense forests, where whistling expands the area of communication while movement to carry messages is challenging. [1]
For Dummies is an extensive series of instructional reference books which are intended to present non-intimidating guides for readers new to the various topics covered. The series has been a worldwide success with editions in numerous languages.
Whistle training is a form of training that some dog parents swear by, but maybe you’re worried that the sound might hurt your dog’s ears, or that it won’t be effective enough – there are ...
A party whistle A metal pea whistle. A whistle is a musical instrument which produces sound from a stream of gas, most commonly air. It may be mouth-operated, or powered by air pressure, steam, or other means. Whistles vary in size from a small slide whistle or nose flute type to a large multi-piped church organ.
Exercise is crucial for longevity, but fitness priorities change as you age through your 30s and 40s. A personal trainer said training for your age can help maintain a healthy, active life over ...
Slide whistle Diagram of a slide whistle. Sections: 1: mouthpiece, 2: fipple, 3: resonant cavity, 4: slide, 5: pull rod, 6: pipe. A slide whistle (variously known as a swanee or swannee whistle, lotus flute, [1] piston flute, or jazz flute) is a wind instrument consisting of a fipple like a recorder's and a tube with a piston in it.