How sight works
http://www.youtube.com/watch?v=gBdyU1b0ADQ
Light and color series:
http://www.youtube.com/watch?v=9ImE-xMQqXc
The entire series is worthwhile. Watch it if you can. At the very least watch the first part.
How sight works
http://www.youtube.com/watch?v=gBdyU1b0ADQ
Light and color series:
http://www.youtube.com/watch?v=9ImE-xMQqXc
The entire series is worthwhile. Watch it if you can. At the very least watch the first part.