ARECIBO Radio message 1974 - The original SETI message to the stars For Sale

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ARECIBO Radio message 1974 - The original SETI message to the stars :
$25.00

ARECIBO RADIO MESSAGE 1974

This plaque is 100mm x 280mm

This is a binary depiction of the radio message, made with bright aluminium

ARECIBO message plaque

The first attempt at CETI (Communication with Extra Terrestrial Intelligence) consisted

of a message beamed towards the star cluster M13 (The great cluster in Hercules) on

November 16, 1974 by the Arecibo radio telescope in Puerto Rico. The signal,

transmitted at 2380 megahertz with a duration of 169 seconds, was delivered with an

effective power of 3 trillion watts making it the strongest man made signal ever sent.

A technique first suggested by Professor Frank Drake was used to encode the message

which consisted of a string of 1679 binary digits

The top part of the message establishes that the number system to be used is binary.

Under this appear the atomic numbers for the main biological elements- carbon,

hydrogen, oxygen, nitrogen and phosphorous.; as well as the make up of DNA. The rest of

the message deals with the appearance, size and number of human beings, our location

within the solar system and a description of the transmitting telescope

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