Joshua Silver remembers the first day he helped a man see. A tailor in Ghana could no longer see well enough to thread the needle of his sewing machine. He was too poor to afford glasses or an optometrist. Then Silver, an atomic physicist who also taught optics at Oxford University, handed him a pair of self-adjusting glasses
read more | digg story
Subscribe to:
Post Comments (Atom)
.gif)
No comments:
Post a Comment