You place your left-hand fingers on the "A," "S," "D," and "F" keys and your right-hand fingers on the "J," "K," "L," and ";" (semicolon) keys. Since these letters are located in the middle row ...

Caption Compared with a chimpanzee hand, at left, the human hand, at right, has shorter fingers and palms and a longer, stronger more flexible thumb. That not only allows fine manipulation of ...