Wednesday, October 16, 2019

ET Phone Us!


The Arecibo message pictured above was beamed into space via frequency modulated radio waves at a ceremony to mark the remodeling of the Arecibo radio telescope on 16 November 1974. It was aimed at the globular star cluster M13 some 25,000 light years away. The message consisted of 1679 binary digits.

The cardinality of 1679 was chosen because it is a semiprime (the product of two prime numbers), to be arranged rectangularly as 73 rows by 23 columns. The alternative arrangement, 23 rows by 73 columns, produces jumbled nonsense.

For more information about this message see:
http://en.wikipedia.org/wiki/Arecibo_message

Just a thought - any concerns about us having broadcast our location in this way? Any concerns that this was as decision made by a few scientists and not by the whole human community?

Question: What is the content of the following simpler message?

101101111101101