The Doppler Effect

 

The Simpsons S06E16 – Bart vs. Australia (2:13 – watch from __ to ___)

Amazing Doppler Effect (0:17)

The Doppler effect in water can be seen in this image of a swan swimming.

Doppler Effect Demonstration (Using a Little Boy) (1:09)

There is a high-speed animation of the Doppler effect on Wikipedia that illustrates it clearly.

See Also