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.
The Noon Whistle was created on 1923-04-29.
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.
"when the whistle blew"
whistle while you work
Adrianna Caselotti
no
The future tense of whistle is will whistle.
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.
A dog whistle can be effective in training dogs because it produces a high-frequency sound that is not easily heard by humans but can be heard by dogs. This sound can be used to get a dog's attention or to signal a specific command. However, the effectiveness of a dog whistle depends on the individual dog and their training. Some dogs may respond well to a dog whistle, while others may not be as responsive. Overall, a dog whistle can be a useful tool in communicating with and training dogs, but it is not guaranteed to work for every dog.
A whistle produces sound when air is blown through a narrow opening, creating vibrations that travel through the air as sound waves. The shape and size of the whistle determine the pitch and volume of the sound produced.
The possessive form is whistle's.
whistle whistle