Greek calculating machine tracked eclipses, Olympics
                                
                                
                                    (Newser) -
                                    The world's oldest calculating machine was used as a calendar that tracked eclipses and marked Olympic Games, the Telegraph reports. Scientists say the ancient Greek "Antikythera Mechanism," a 2,100-year-old bronze gadget discovered in 1900, marked the 4-year cycle of Games that climaxed with the Olympics—"which...