Turning on the light
I used to view light as something simply to view something else by. The messenger which, by itself, is not the important thing. Light bouncing off something tells you something is there. Light through a lens is bent into an image, and recorded, and again tells you something is there. I think this is the most common view of light. As a kid I was interested in mechanical things, and needed light in order to find the screw, needed light to read the green phosphor display on our now ancient Apple II, but didn’t really notice how light interacts with things. These interactions are right there in front of us but unless pointed out are easily missed. The phosphor-based tv that we all watched is a complicated dance of electrons and photons, and its reverse process, the photoelectric effect, wasn’t even discovered until 100 years ago.
March, 10th, 2015
Immunology Frontier Research Centre