Magic Roundabout (Swindon) roundabout used to be County Islands, but it was changed in the late 1980s to match its popular name. It inspired the song "English Roundabout", a pop song by the Swindon band XTC, which was recorded for their 1982 album "English Settlement". In 2005, it was voted the worst roundabout in a survey of the general public by a UK insurance company. In September 2007, the Magic Roundabout was named as one of the world's worst junctions by a UK motoring magazine. In December 2007, "BBC News" reported a survey identifying The Magic Roundabout as one of the "10 Scariest
Magic circle (mathematics) Magic circle (mathematics) Magic circles were invented by the Song dynasty (960–1279) Chinese mathematician Yang Hui (c. 1238–1298). It is the arrangement of natural numbers on circles where the sum of the numbers on each circle and the sum of numbers on diameter are identical. One of his magic circles was constructed from 33 natural numbers from 1 to 33 arranged on four concentric circles, with 9 at the center. Yang Hui's magic circle series was published in his "Xugu Zhaiqi Suanfa"《續古摘奇算法》 (Sequel to Excerpts of Mathematical Wonders) of 1275. His magic circle series includes: magic 5 circles in square,