Physics
Kevin MehallRefraction
8.02 Lecture 29All beams in one plane
\theta_3 = \theta_1
\frac{sin \theta_1}{sin \theta_2} = \frac{n_2}{n_1}
Snell's Law
n_{water} = 1.3
n_{glass} = 1.5
Total reflection when \theta_1 \gt Critical Angle
sin \theta_{cr} = \frac{n_2}{n_1} (n_1 \gt n_2)
Speed of light in non-vacuum
c = \frac{1}{\sqrt{\epsilon_0 \mu_0 \kappa \kappa_M}} = \frac{c}{\sqrt{\kappa \kappa_M}} = \frac{c}{n}
n = \sqrt{\kappa \kappa_M}
but dielectric constants depend on frequency- at high frequency, the diploles can't follow fast enough. lower at high frequencies
n_{water} for radio waves = 8.9
Human color vision
Problems with 3-color model
Bentham top
different neuron phase delays between colors
Edwin Land Slides
Black and white slides, when overlayed, one with a red filter, show multiple colors
http://people.msoe.edu/~taylor/eisl/land.htm
