William Rowan Hamilton's formulation of the

In physics, Hamilton's principle is William Rowan Hamilton's formulation of the principle of stationary action. It states that the dynamics of a physical system are determined by a variational problem for a functional based on a single function, the Lagrangian, which may contain all physical information concerning the system and the forces acting on it. The variational problem is equivalent to and allows for the derivation of the differential equations of motion of the physical system. Although formulated originally for classical mechanics, Hamilton's principle also applies to classical fields such as the electromagnetic and gravitational fields, and plays an important role in quantum mechanics, quantum field theory and criticality theories.

Python was a steel roller coaster located at Busch Gardens Tampa Bay theme park in Tampa, Florida. Built by Arrow Development and opened on July 1, 1976, it was the first roller coaster at Busch Gardens since the park opened in 1959. The roller coaster was located in the Congo section of the park near Stanley Falls Flume and later the Congo River Rapids. After 30 years of operation, Python closed on October 31, 2006, and was eventually replaced by Jungala, a now-defunct family section of the park.