sciencehabit writes: It's textbook physics: An electric charge near the surface of a material gets pulled toward the surface. However, if the charge is spread out into the right shape and moves fast enough, that attraction becomes a repulsion, one physicist calculates. The odd finding could help physicists avoid unexpected effects when guiding beams of particles such as electrons.
Top Ten Things Overheard At The ANSI C Draft Committee Meetings:
(5) All right, who's the wiseguy who stuck this trigraph stuff in