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Tag: “doppler effect

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Doppler Effect Video

1.  Why do scientists believe the universe is expanding?  ...

anonymous3/6/201123800
The Doppler Effect

1.  Why do scientists believe the universe is expanding? 2.  Light waves radiate outw...

ohoegh 3/7/201129810
Using a Star's Spectru...

Make the "Direction Relative to Earth" away, and turn the speed up.  To what end of the...

ohoegh 3/6/201138100