Infinity symbol symbol is encoded in Unicode at and in LaTeX as codice_1: formula_4. The Unicode set of symbols also includes several variant forms of the infinity symbol, that are less frequently available in fonts: , and in block Miscellaneous Mathematical Symbols-B. The acid-free paper symbol mentioned above is encoded separately as . 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
Sideways bike Sideways bike The sideways bike is an invention, patented in 2005, by Michael Killian, a software engineer from Dublin. He was inspired by the way that snowboarding is preferred to skiing due to the greater artistic potential, and decided to design a snowboard equivalent for the conventional bicycle. The result: a bike ridden sideways with the rider operating both wheels. The bike, unlike a conventional bike, uses front-to-back balance like a snowboard. Conventional bikes use left-to-right balance, like skis. The bike is aimed the youth market and has won a number of invention awards. The sideways bike is different in