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bodonid

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nm, I don't think I understand this well enough to make such generalizations. see below.
 

bodonid

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velocity is a property of the medium

absolute velocity is, yes. But when you walk toward a wave moving at the speed of sound, isn't the observed velocity increased? That is the basis for the Doppler equation, I think.
 

RSAgator

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Well the velocity doesn't change. The fact that the doppler effect is concerned with a relative velocity doesn't change the fact that velocity itself is a property of the medium =)
 

mrmandrake

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absolute velocity is, yes. But when you walk toward a wave moving at the speed of sound, isn't the observed velocity increased? That is the basis for the Doppler equation, I think.

yea, the relative velocity of the sound wave will be changed if you (the detector) are moving too. so if you are moving at 170m/s in the same direction as the wave which moves at 340m/s, it will be moving 170m/s relative to you. this is the doppler effect.
 
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