Cocconi and Morrison guessed that the aliens would choose a frequency that would mean something to creatures who know math and chemistry.

Cocconi和Morrison猜测外星人会选择对于拥有数学和化学知识的生物有意义的频率。

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Eighteen years earlier, two Cornell physicists, Philip Morrison and Giuseppe Cocconi, had tried to imagine how an intelligent alien civilization might try to signal Earth.

十八年前，Philip Morrison和Giuseppe Coccni，两位来自康奈尔大学的物理学家，致力于猜想智慧外星文明如何向地球发出信号。

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It's been 50 years since Philip Morrison and Guiseppe Cocconi published their seminal scientific paper on SETI in the journal Nature, and since Frank Drake first used the Tatel telescope in Green Bank, West Virginia, to attempt to detect any radio signals from technologies he thought could be orbiting the nearby stars of Tau Ceti and Epsilon Eridani.

CNN: What if there's somebody else out there?