Printhttp://en.wikipedia.org/wiki/Doppler_effect
http://www.physicsclassroom.com/class/sound/Lesson-3/The-Doppler-Effect-...
http://csep10.phys.utk.edu/astr162/lect/light/doppler.html
http://www.acs.psu.edu/drussell/Demos/doppler/doppler.html
http://www.einstein-online.info/spotlights/doppler
http://www.qrg.northwestern.edu/projects/vss/docs/communications/3-what-...
http://hyperphysics.phy-astr.gsu.edu/hbase/sound/dopp.html
http://www.radartutorial.eu/11.coherent/co06.en.html
http://galileoandeinstein.physics.virginia.edu/more_stuff/flashlets/dopp...
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