Every time while looking at sea's waves, I remember my professor, Dr. Raeesi's explanations about the meaning of phase velocity and group velocity.
He said: if you close your eyes and listen to sound of waves reaching to the seashore, you will find out that a special sound repeats frequently, that's because the peak of waves colliding to different parts of the beach in turn. This is group velocity...
He said: if you close your eyes and listen to sound of waves reaching to the seashore, you will find out that a special sound repeats frequently, that's because the peak of waves colliding to different parts of the beach in turn. This is group velocity...
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Mahmud Abad, North of Iran, Aug 2005
Photo by: Farzane
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3 comments:
how do u do !
raastiii
linke shoma ro paziroftiiim:D
I'm in Love with Modern Physics!
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