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Uploaded by adlerplanetarium on Jul 17, 2009
How is the frequency of light emitted from a star used to determine the direction it is traveling in relation to us?www.adlerplanetarium.org
Science & Technology
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that's my astronomy teacher whooo hoooo!
BRIANisALRIGHT 1 year ago
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that's my astronomy teacher whooo hoooo!
BRIANisALRIGHT 1 year ago