FIGURE 3. An example of a possible message from an ETC.
From the following article:
The search for extraterrestrial intelligence
T. L. Wilson
Nature 409, 1110-1114(22 February 2001)
doi:10.1038/35059235

a, A hypothetical signal pattern as received. The dots represent a short transmission and the dashes are transmissions of longer duration. The dashes of double length indicate the end of a line of dots and shorter dashes. b, The message has been arranged so that the longer dashes form the end of a row. c, Line drawing obtained by connecting the shorter dashes by a smooth line.
