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Is it pretentious to insist on fresh food for school lunches?
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Basically the same analysis that’s in "Physics for Future Presidents," with some added financial figures. Bottom line: Don’t worry too much about "dirty bombs."
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BoingBoing discovers TeachSpin, makers of high quality scientific demonstration apparatus.
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James Kakalios, author of "The Physics of Superheros" talks about his role as a consultant for the Watchmen movie.