spectrum of light

http://www.youtube.com/watch?v=5J8iEIQBlxc&feature=related
good

http://www.youtube.com/watch?v=bjOGNVH3D4Y&feature=related
with singing (funny)

Wow, your camera, webcam etc can see the light from your infrared remote control, good sci expt.



http://www.youtube.com/watch?v=biTb-ZEvREM
full spectrum from radio to gamma

http://www.youtube.com/watch?v=wKO5vfu8Gns&feature=related
no audio track to this one

Colour mixing sim

source exe