Viewing our world with polarizing glasses
Published in Endeavor New Series 10, 121-124 in 1986
G. P. Können
In the open, we are surrounded no only by a mass of colour, but also by much polarization. The latter remains normally invisible to us, but with the aid of a  simple polarizing sheet, one suddenly becomes aware how much polarization there is. In this article, a number of observations are described and regularities in the natural polarization pattern are discussed.