What id the Doppler shift and how it can be used to determine the speed of blood?

Question asked by: kwec204

Asked on: 27 Feb 2009

Doppler shift in general is where light or sound waves that are coming towards you appear to be shortened and then lengthen when they move away - thus you get redshift with light that has travelled a long way and sound waves seem to change pitch from a siren for instance as a vehicle approaches then moves away.
By: knowitall
Replied at: 01 Mar 2009
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