118. Interference Phenomena in Raindrops
Many people obliged to wear glasses out-of-doors complain that raindrops distort the images and make them unrecognisable. It may perhaps console them if we call their attention to the splendid interference phenomena visible in these same raindrops. All they need to do is to look at a source of light in the distance-a street-lamp, for example. A raindrop that happens to be exactly in front of the pupil becomes strangely distorted ... Read even more
