As for the games and activities, pet rocks, sea monkeys, lava lamps, mood rings, and the Rubik's cube were all fads that began. The Rubik's cube was one of the classic 70's inventions. A person had to make all sides of the cube the same color by twisting the blocks in different directions. It was such a simple concept, yet very few people were actually capable of solving the puzzle. Mathematicians finally understood that there were actually mathematical combinations called algorithms which solved the puzzle. Through a set combinations of moves, the puzzle could be easily solved. The Rubik's cube became such a classic puzzle that even today it is still considered part of our culture. New variations and twists of the puzzle are still being made today.
http://kclibrary.lonestar.edu/decade70.html
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