Hewitt Drew-It! PHYSICS Screencasts
Light Emission


Hewitt-Drew-it! PHYSICS 115. Atomic Excitation
Excitation explained with examples.

Hewitt-Drew-it! PHYSICS 116. Atomic Spectra
The spectroscopes and emission and absorption spectra explained

Hewitt-Drew-it! PHYSICS 117. Emission of Light
Incandescence, fluorescence, and phosphorescence explained

Hewitt-Drew-it! PHYSICS 118. Lamps
Incandescent lamps, fluorescent lamps, CFLs and LEDs explained

Hewitt-Drew-it! PHYSICS 119. Laser Light
Explanation of the helium-neon laser.