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Re: How do you say 'Hello' to an alien?

From:Peter Bleackley <peter.bleackley@...>
Date:Monday, August 4, 2003, 9:30
Staving Andreas Johansson:

>I think the compositors of the Arecibo message assumed any repicients would be >familiar with binary notation, and therefore likely to recognize it. I shan't >try to guess the odds of an alien civilization as a whole being acquainted to >binary numbers, but merely pessimistically note that positional notation seems >to come anything but naturally to many humans I know.
Anyone with sufficient technical expertise to build and operate a radio telescope capable of receiving the signal can be assumed to be familiar with binary. At least, that's what seems reasonable to an astronomer who does engineering research for a broadcasting organisation. Pete