Polarised
It’s interesting to reflect on the word ‘polarise’. If I remember correctly I first came across the word in connection with a photography hobby. When I bought my first 35mm camera as a teenager I bought some ‘optional extras’ that included a polarising filter. Later I learned that polaroid sunglasses had already been produced since 1935 – a decade before I was even a twinkle in the eyes of my parents. Technically speaking, the polarising filter on my camera ensured that the vibrations of light waves worked only in one direction, giving a much sharper view, for example, of clouds on a sunny day. It allowed me to photograph a fish in the water as the filter cancelled out reflected light from the water’s surface. The literal meaning of the word makes a lot of sense and we’ve come to understand the word these days especially as representing two extremes – as though they are from opposite ends of the earth. Something becomes ‘polarised’ as i...