From ancient civilizations to modern societies, the belief in the magic of numbers has persisted in spite of the advances in science and technology. There is nothing quite as stubborn as superstitions. Even today in the twenty-first century, people still believe in bad luck and omens. In the future, people may work in space stations or travel the universe in star ships, but there probably won't be a "Starbase 13" or a rocket liftoff on friday the thirteenth. A sevent voyage will be a good on, and the third time around will still be lucky...