Physics Simulations
Wave
simulations:
http://physics.ham.muohio.edu/p171s01/wave.htm
http://www.cbu.edu/~jvarrian/applets/waves1/lontra_g.htm
http://www.mta.ca/faculty/science/physics/suren/Lwave/Lwave01.html
http://surendranath.tripod.com/Applets/Waves/Twave01/Twave01Applet.html
http://qbx6.ltu.edu/s_schneider/physlets/main/waves_superposition.shtml
A
Large selection of simulations:
http://phys23p.sl.psu.edu/phys_anim/waves/indexer_waves.html
Electromagnetic Spectrum and EM Wave simulations:
http://hyperphysics.phy-astr.gsu.edu/hbase/ems1.html
http://www.lon-capa.org/~mmp/applist/Spectrum/s.htm
Some Quick Time movies of EM Waves:
http://www.ee.iastate.edu/~hsiu/em_movies.html
Dipole Radiation Simulations:
http://www.walter-fendt.de/ph11e/emwave.htm
http://webphysics.davidson.edu/Applets/Retard/Retard.html
This site contains wave as well as optics simulations!
http://www.ngsir.netfirms.com/englishVersion.htm#lightwave
http://www.phys.ufl.edu/~qiu/handout.html