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1974 Technology & Gadgets
Without official dates 1974 is the year pocket calculators, office word processors and the first UPC bar code scanners appear in stores.
Donald Johanson and Tom Gray discover a skeleton from the hominid species Australopithecus afarensis in the Awash Valley of Ethiopia. The Beatles song Lucy in the Sky with Diamonds playing at the find camp gave the three and a half foot tall 3. 2 million year old female hominid its name, Lucy. Lucy at National Geographic
The Arecibo radio telescope built in 1963 sent an interstellar radio message into deep space. The M13 Great Globular Cluster will receive the message in about 25,000 years.
The message was in binary code containing 1679 digits in a 23 by 73 rectangle expressing numbers 1 through 10, atomic numbers of our most prevalent elements, DNA information, sugar formula, a graphic of a human, our solar system and the arecibo telescope. Below is the colorized version of the actual message. Full explanation of the code
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