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| What was your greatest contribution to science? |
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| Can you explain how the red shift determines the speed of an object, please? |
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| Why were your discoveries important? |
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| Do you know any jokes? |
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Click here to see and hear the Doppler shift for a motorcycle.
Click here to see and hear the Doppler shift for a train whistle.
Click here to see and hear the Doppler shift for a motorcycle.