New servers, hooraaaay! More bandwidth, more power.
http://www.astarmathsandphysics.com/a_level_physics_notes/waves_and_oscillations/a_level_physics_notes_doppler_shift.htmldoppler shiftWill try and do a black body page today
http://www.astarmathsandphysics.com/a_level_physics_notes/thermal_physics_and_gases/a_level_physics_notes_black_body_radiation.html