"In everything… uniformity is undesirable. Leaving something incomplete makes it interesting, and gives one the feeling that there is room for growth… Even when building the imperial palace, they always leave one place unfinished.”- Japanese Essays In Idleness, 14th Century
The world turns on symmetry -- from the spin of subatomic particles to the dizzying beauty of an arabesque. But there's more to it than meets the eye. Here, Oxford mathematician Marcus du Sautoy offers a glimpse of the invisible numbers that marry all symmetrical objects.