Reflected rainbow at a fountain
Alexander Haussmann searched specifically for a reflected rainbow at the fountain of the palace pond at Dresden. And with his precise look he found it – but it was faint. With a polarising filter he could increase its contrast. The reflected bow changed in brightness, occasionally it was obvious but then it became faint again. The visibility was most probably influenced by the wind and the smoothness of the water surface that was to some extent disturbed by the falling drops. This example shows that it is not difficult to find a (artificial) reflected rainbow with help of a fountain.