Halos, Rainbows, and Other Phenomenon in the First Coast
Saturday, December 10, 2011
Large scale diffraction
While viewing a lake, there was a fallen tree in it and waves heading perpendicular to it. It left a pattern behind it which looked like light diffraction, which is the cause of iridescence and coronae. Diffraction is when waves bend around an obstacle and interfere with other light waves, some cancel each other out and others amplify each other.
Water waves bending around a log
Simulated corona by shining a laser through a small