54. Erections in the Year of Light

54. Erections in the Year of Light

Erectile dysfunction, the subject of many a cartoon, is in reality a very distressing condition that affects more than 150 million men worldwide. But now, in this Year of Light, light has come to the rescue. But first, a little history. Some of the early devices that...
3. Newton’s Missed Chance

3. Newton’s Missed Chance

The story of light is still going, with some very surprising twists, as later posts will show. Light itself can even be twisted, like the fibers in a rope, and also used to lift small objects and move them around. When Newton published his book Opticks in 1704,...
2. Two Fingers to Newton

2. Two Fingers to Newton

If you want to repeat one of Isaac Newton’s most significant experiments, try holding your index and middle fingers up to the light (don’t do this, as I once did, in a train full of drunken football supporters!). With the tips of the fingers just touching, there will...