Famous fact

  • Thread starter tino lin
  • Start date
  • #1
tino lin
21
0
A duck's quack doesn't echo, and no one knows why.

Can physics explain this fact and how?
 

Answers and Replies

  • #3
pallidin
2,209
2
I agree. This is a myth. The link provided by robphy says it all.
 
  • #4
Antiphon
1,683
3
If a quacking duck were to emit a single acoustic phonon, it may reflect off of
a wall or it may get abosrbed by the wall. And no one knows why since no one
knows the physical basis of quantum superposition.

So parts of a duck's quack somtimes make an echo- and no one does know why!
 
Last edited:
  • #5
FredGarvin
Science Advisor
5,088
10
As much as I am not a fan of the show, but Mythbusters had a segment on this as well. They had an accoustic pro come in with a spectrum analyzer and looked at the quakck in various scenarios. Their pro came to the same conclusion as the referenced article from Snopes.
 

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