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The Physics of a Puzzling Perpetual Motion Machine

[embedded content] Perpetual motion—it’s fun to say that. For some people, perpetual motion machines hold the secret to everlasting free energy that will save the world. To them, it’s a machine that is just beyond our grasp. If only we could tweak our design just a little bit, it would ...

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Harvey Weinstein Ousted From Motion Picture Academy

LOS ANGELES — Hollywood’s de facto governing body, the Academy of Motion Picture Arts and Sciences, voted overwhelmingly on Saturday to “immediately expel” Harvey Weinstein, breaking with 90 years of precedent and turning one of the biggest Oscar players in history into a hall-of-fame pariah. The academy’s 54-member board of ...

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