18 September 08

Today has tripartite significance in curvy math/geophysics. You may not see the connection as I do, but the ideas of a swinging pendulum, a swirl of polynomial expansions and an exponential curve all come together on September 18 to mark the birthdays of Leon Foucault (1819) and Adrien-Marie Legendre (1752) and the death of Leonhard Euler (1783). So it's a paisley day.