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The dog hears the sound but we don't.
The human ear can only detect sounds of a frequency between 20 cycle/second and 20,000 cycles/second at the very best. Dogs can hear sounds with a greater frequency. A typical a dog whistle is within the range of 16000 cycles/second to 22000 cycles/second. To put it more technically, a dog's inner ear vibrates or resonates to the high frequency sound waves of a dog whistle but our ears do not.
Its the same with bats, they are constantly sending out high frequency sounds, to locate flying insects but our inner ears don't resonate at those high frequencies and so we don't hear the constant "chirping" sound that they are making.
You can make your computer generate a dog whistle, go to the related links below.
Wiki User
∙ 14y ago
Wiki User
∙ 13y agoWhistles can be made of a hard material, such as plastic, wood or metal. It is a device that makes a whistling sound when air is blown through its mouthpiece. One type of whistle is similar to a hollow tube, where one end is open and used as the mouthpiece. On the side of the whistle is a sharp edge that creates a slit or opening along the midsection. When air is blown into the opening, it strikes the edge which sends the air whirling. This motion compresses and then expands the air. That creates vibrations and makes the trademark whistling sound.
Wiki User
∙ 9y agoDog whistles work by getting the attention of the dog using an ultrasonic sound. The sound carries over a long distance making it very useful for herding and retrieving dogs
Wiki User
∙ 13y agothe "silent" whistle is actually not silent. It's just that it releases a sound so high that only dogs and certain animals can hear it.
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When was Whistle While You Work created?
The Noon Whistle was created on 1923-04-29.
What is a sentence with the word whistle?
The whistle of the mortar overhead was the last thing he heard.There was a whistle from the kitchen, telling him the kettle was boiled.He always liked to whistle on his way to work, which I found annoying. So one day I brought a shovel along to work. He won't whistle any more.
What is the type of subordinating clause in the sentence The man quit work when the whistle blew?
"when the whistle blew"
What does the name Leora mean?
whistle while you work
Who sang the song 'Whistle While You Work'?
Adrianna Caselotti
Do the deer whistle alert things work very well?
no
A train whistle sounded in the distance is train a noun?
Yes. 'Train whistle' is a compound noun, which means that both 'train' and 'whistle' are nouns individually but here they work together. The word 'train' is applied to 'whistle' in the place of an adjective, that is, a word that describes the type of whistle. But have you ever heard a wolf whistle? Many compound nouns eventually run together, like handbook or cupboard, and maybe one day, wolfwhistle.
Where does a deer whistle go on car?
Anywhere on the front end of the car but these items don't really work * Added - Only 1 deer whistle of the many brands sold has ever been shown to work as intended. Even working as intended, it does not mean the deer will hear it or it will move. A deer whistle must be at the front of the car and will only work at the speed it was designed to function at.
How do you write a whistle i chat line?
whistle whistle
What is the future tense of whistle?
The future tense of "whistle" is "will whistle." For example, "He will whistle a tune tomorrow."
What is the importance of whistle-blower protection act?
The whistle-blower protection act is an important law that protects individuals whom work for the government and report misconduct. The whistle-blower act provides protection to employees to ensure they are not threaten with job loss or lawsuit.
What if your employer uses a series of two whistles to signal the start of work. When the second whistle sounds where should you be?
in your work area ready to begin work
