Take Pi For A Spin In This Orbital Simulator

Cristiano Monteiro continues his annual Pi Day tradition with a web-based Orbital Pi Simulator that lets users explore what happens to a spacecraft's orbit when its navigation system uses an incorrect value of pi. Plugging in values higher than 3.14 causes the orbit to become increasingly elliptical until the craft escapes into deep space, while lower values cause the orbit to intersect with Earth. The project is a playful software visualization of orbital mechanics tied to the mathematical significance of pi.