http://know-goldstain.com/
Langrangian for charged particle in an electromagnetic field. Conservation theorems and symmetry properties. Virial theorem. Central forces, scattering in central force field. Some kinematics and dynamics for rigid bodies. Special relativity.
http://laser-types.org
The twentieth century has seen a long succession of Nobel Prizes for fundamental work that has explained the nature of matter, radiation, and the interaction between the two.
