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Claim: A duck's quack doesn't echo, and no one knows why.

Status: False.

The myth

A duck's quack certainly does echo around in a reverberation chamber, so a duck's quack does echo, which leads to the most interesting question. Why did the myth arise? There are a few possible explanations that I can think of:

* The quack does echo, but it is usually too quiet to hear. When you want to hear an echo, you usually make a very loud noise to make sure the reflection can be heard. But a duck quacks too quietly, so the reflection is too quiet to hear.
* Ducks don't quack near reflecting surfaces. You need a large reflecting surface, a mountain or building for the sound to reflect off. Maybe ducks don't hang around reflecting surfaces.
* It is hard to hear the echo of a sound which fades in and fades out.

As with many myths it's hard to say how or why they got started but this myth has been "busted" in several scientific experiments.

Ahehehe, astig solve case na pala to...
Thanks for the info... :D