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Science

Physicists Turn Pull Into Push 60 60

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."
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Physicists Turn Pull Into Push

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Have you ever noticed that the people who are always trying to tell you `there's a time for work and a time for play' never find the time for play?

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