Infinity symbol Infinity symbol The infinity symbol (sometimes called the lemniscate) is a mathematical symbol representing the concept of infinity. The shape of a sideways figure eight has a long pedigree; for instance, it appears in the cross of Saint Boniface, wrapped around the bars of a Latin cross. However, John Wallis is credited with introducing the infinity symbol with its mathematical meaning in 1655, in his "De sectionibus conicis". Wallis did not explain his choice of this symbol, but it has been conjectured to be a variant form of a Roman numeral for 1,000 (originally CIƆ, also CƆ), which was sometimes
Sideways bike normal chain system cannot function, but Killian created a part that allows the rear cassette to cause the wheel to rotate even when turning, by having an intermediate piece that can transmit the power. Rather than using a normal saddle for a bike, the sideways bike uses a unicycle saddle to aid balance. The sizes of the wheels vary considerably between different sideways bikes in order for each bike to be adapted to its purposes correctly. Sideways bike The sideways bike is an invention, patented in 2005, by Michael Killian, a software engineer from Dublin. He was inspired by the