Snell's Law. n1/n2=sin2/sin1 One of the many useless bits cluttering my mind. <img src="http://www.traveltalkonline.com/forums/images/graemlins/Grin.gif" alt="" />


Travel is fatal to prejudice, bigotry, and narrow-mindedness, and many of our people need it sorely on these accounts. - Mark Twain