- #1
Robin04
- 260
- 16
I found a very interesting exercise for high school students: The atmosphere of a planet changes in height so that if we point a laser in a tangential direction, the light goes around the planet. This can be easily solved (at high school level) by applying the Fermat principle, but is this possible in real life? Isn't it the base of geometric optics that light travels in a straight line? I've been thinking about that if it's possible then this could be a very interesting problem to deal with. :)