Which is brighter? The red of a rose or the green of it’s leaves? Depending on the time of day this answer may change. Flowers can teach us about the physiology of our eyes. Explore with me as we learn about the Purkinje Effect.

Subscribe here: http://goo.gl/B2RPd
Science Raps here: http://goo.gl/fCSXF

Follow Coma Niddy University:
FaceBook: http://goo.gl/keMj9
Twitter: http://goo.gl/4xUVW
Tumblr: http://goo.gl/71J4N

PBS Digital Studios