Grecian Computer

True Genius Grecian Computer In the summer of 1901, a mysterious contraption was discovered deep under water in a shipwreck near the Grecian Island of Antikythera. The mechanism has long been referred to as the world’s first analogue computer. It was allegedly used to predict astronomical positions and eclipses, as well as the 4 year cycle of the Olympic games. IT ALL ADDS UP TO 42: Inspired by the unparalleled true genius of ancient Grecian astronomers, this highly difficult puzzle challenges you to rotate the dials until each of the 12 columns add up to 42. SPIN, PLAY, & DISPLAY: The layers rotate clockwise and counter-clockwise to reveal hidden numbers as they turn. Depending on your patience, solving this puzzle is a challenge that may last an hour to several days. With its beautifully crafted wood and natural stain finish, it displays well on a desk or bookshelf between bouts of puzzle-play. PLAY UNPLUGGED: No batteries needed for this screen-free brainteaser! Challenges mathematical and problem-solving skills. Great gift for Mathematicians, Computer Programmers, Engineers, and brainy teens.