... Ideas often come to people when they are walkingor driving a car. Both the key connections that led to the development of X-ray crystallography and to the invention of the body scanner occurred to ... hole at the bottom of the blade, and the nextmorning he made a needle with its eye near the point, instead of at the top. His machine was complete.You may like to try the experiment of jotting ... sensible person should, of course, be open to the criticism of others. It is one of the offices of a friend, if no one else, to offer you constructive crit-icism about your work and perhaps also about...