50 years ago: Arecibo telescope sends message to possible extraterrestrials
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What is the Arecibo Message?
What is the Arecibo Message?
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SOLVED: The Arecibo telescope has a diameter of 305 m. What's the minimum distance between stars it can resolve in the Andromeda galaxy, 2 million light-years away, if the stars emit radio waves with 4.0 cm wavelength?
SOLVED: The Arecibo telescope has a diameter of 305 m. What's the mi…
4 months ago
numerade.com
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Arecibo Message (Detailed Explanation)
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