Tombolos and Green Flashes
Tombolos are geological formations generated by wave action. One such on the island of
Kauai is examined from the viewpoint of wave phenomena. Connection is then made to
analogous waves in the context of optics, acoustics, and quantum mechanics. The "green
flash" is a rarely seen optical phenomenon that is observed primarily at sunset over an
ocean horizon. Several tricks are suggested to enhance one's chances for seeing this
unusual sight (we did).