A. Explain why finding other civilizations by means of eavesdropping requires mu

Question

A.   Explain why finding other civilizations by means of eavesdropping requires much more sensitive detection devices than communication with a civilization whose existence is known?

B.   Why do SETI scientists attempt to record millions of different frequencies simultaneously?  How does this technique differ from the procedure that we use tune our car radios to listen to radio broadcasts?

Explain why finding other civilizations by means of "eavesdropping" requires much more sensitive detection devices than communication with a civilization whose existence is known? Why do SETI scientists attempt to record millions of different frequencies simultaneously? How does this technique differ from the procedure that we use tune our car radios to listen to radio broadcasts?

Explanation / Answer

Finding other civilizations by means of

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