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www.reference.com/article/whistle-using-fingers-9e4ef04301c4973d

Whistling with no fingers requires tightly drawing back the lips, drawing back the tongue at a certain angle, then blowing out through a beveled edge over the teeth. A whistling sound happens with the right tongue placement near the teeth and the right gap for exhaled air.

www.reference.com/world-view/toilet-whistle-1f85e58af6a489a0

A whistling toilet is caused when the fill valve does not shut completely. If there is a gap, water leaks into the tank, causing the valve to vibrate. This is often caused by a dry or deteriorated ballcock valve.

www.reference.com/article/whistle-lips-6756ddc2ff749660

Closing the lips to form an "O" shape is the first step in whistling. The tongue should be against the ridge of the mouth's roof, and the lips should be tight. Experiment with the mouth, but maintain the whistling position. Wet lips and blow slowly.

www.reference.com/article/wolf-whistle-ea073a02886a2ff9

Wolf whistling requires practice and patience. The goal is to make a high-pitched whistle that can be heard from afar. Wash your hands before placing fingers in the mouth.

www.reference.com/article/employee-whistle-blowing-8c239d9821f6f48

Employee whistle blowing is when an employee of a government agency or private enterprise discloses to the public or to an authority information about an illegal or unethical activity being perpetrated within the organization. Whistle blowers typically expose corruption, malfeasance or mismanagement

www.reference.com/world-view/car-whistle-accelerate-b8aa3b6bd32215d0

Whistling noises that occur when accelerating a vehicle are often due to vacuum leaks under the hood. If a vacuum leak is the cause, the car is likely to make the same noise upon pressing the accelerator when the vehicle is idling.

www.reference.com/article/fireworks-whistle-1064fd61d97876e8

Whistling fireworks require two components: an explosive mixture that makes a sound when it burns and an empty portion of the rocket tube to act as a resonance chamber. The gas released creates the noise, while the chamber allows the sound waves to build on each other to earsplitting volume.

www.reference.com/article/use-shepherd-s-whistle-c30c13e211cb79e2

Using a shepherd's whistle to give commands to a sheepdog allows you to communicate over longer distances than using voice commands. Learn how to use a shepherd's whistle with these simple steps. Make sure to have a shepherd's whistle on hand.

www.reference.com/article/bad-luck-whistle-theater-574e23bbdc01a957

The theater is known for having many superstitions, including telling actors to "break a leg" instead of wishing them good luck, and referring to Shakespeare's "Macbeth" only as "The Scottish Play." But superstitious actors also avoid whistling because, in the early days of theater, doing so could r

www.reference.com/article/difference-between-noise-sound-63cd1240a352bbd2

Noise is unwanted or unpleasant sound. The classification of sound as noise is subjective; what may count as sound to one person or culture may count as noise to another person or culture. Sound may be classified as noise based on its magnitude, characteristics, duration and time of occurrence.