Have you ever heard an echo from a duck’s quack? Don’t worry, nobody has ever heard this sound. Why? People have different opinions. One group thinks it is a myth, while another group believes in the scientific explanation and the third group wants to prove that the duck’s quack does have an echo.
According to the first group, there was a nymph in Ancient Greece who was in charge to create the echos but when the “quack” of a duck came, this sound hurt her ears and she refused to reproduce this sound. That’s why, according to the first group of people, the duck’s quack doesn’t have echo.
The second group justifies that the duck’s quack does have an echo but we can’t hear it. A “quack” is formed by a lot of mini-quacks. The mini-quacks, which leave the duck meet the mini-quacks, which come back and at the end, the leaving quacks mix up with the coming-back quacks. That’s why we can’t hear a quack’s echo.
The last group tries to convince us that every sound has an echo. They hide their explanation saying that the duck’s quack isn’t loud enough to create an echo. The absence of echo is possible only if there is no atmosphere, like in space so, the duck’s quack must have an echo. They also add that ducks live in plains and nothing is there to throw their quacks back.
Finally, why don’t duck’s quacks echo? Nobody really knows. Everybody has a different explanation or even a non-explanation or just theories. The only thing you have to do now is to find your own explanation, bringing a duck into an echo place.
Written on April 2011, the 25th.
Picture Credits : Donald Duck, ©Disney
