April 21, 2008
Review Lagrangian techniques in Classical Mechanics.
Coordinates describe the state of a system, position, momentum.
Euler's equations.
Fields exist throughout space-time.
Example:  point masses connected by springs.
The Action integral and the Principle of Least Action
  • Relativistic particle mechanics
  • Four-vectors and four-velocity
  • Principle of least action
  • Lagrangian for a point particle
  • Relativistic momentum and energy