Khan Academy Static

There is much more to light than meets the eye. Introduction to the electromagnetic spectrum and the science of spectroscopy.

18144_Visible_light_1672_.html

18151_Microwaves_1930_.html

18152_Spitzer_telescope.html

18147_Spectroscopy.html

18150_Gamma_waves_1900_.html

18145_Infrared_waves_1800_.html

18148_Radio_waves_1888_.html

18149_X_rays_1895_.html

18146_Ultraviolet_waves_1801_.html