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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 ...
Whistling can be used to control trained animals such as dogs. A shepherd's whistle is often used instead. Whistling has long been used as a specialized communication between laborers. For example, whistling in theatre, particularly on-stage, is used by flymen (members of a fly crew) to cue the lowering or raising of a batten pipe or flat. This ...
On some beaches around the world, dry sand makes a singing, squeaking, whistling, or screaming sound if a person scuffs or shuffles their feet with sufficient force. [ 4 ] [ 5 ] The phenomenon is not completely understood scientifically, but it has been found that quartz sand does this if the grains are highly spherical. [ 6 ]
Depending on the problem and the age of the furnace, it may be more cost-effective to invest in a replacement furnace instead of making expensive repairs to an old system. 10. Visible Signs of ...
According to Adam Edwards of Daily Express, the wolf whistle originates from the navy General Call made with a boatswain's pipe. The General Call is made on a ship to get the attention of all hands for an announcement. Sailors in harbour would whistle the General Call upon seeing an attractive woman to draw fellow sailors' attention to her.
In Tsonga, the whistling effect is weak; the lips are narrowed but also the tongue is retroflex. Tswa may be similar. Tswa may be similar. In Changana, the lips are rounded (protruded), but so is /s/ in the sequence /usu/, so there is evidently some distinct phonetic phenomenon occurring here that has yet to be formally identified and described.
Why we're talking about this. It's possible to become so accustomed to living on a certain amount of money that a new influx of cash feels overwhelming. That's okay. The goal is to keep your cool ...
This whistle is the reason for the typical "long high - short low - short high" signal sound of steam locomotives in Germany. [18] Chime whistle – two or more resonant bells or chambers that sound simultaneously. In America, railway steam whistles were typically compact chime whistles with more than one whistle contained within, creating a chord.
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