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What If? PDF By:Randall MunroePublished on 2014-09-02 by Houghton Mifflin Harcourt The creator of the incredibly popular webcomic xkcd presents his heavily researched answers to his fans’ oddest questions, including “What if I took a swim in a spent-nuclear-fuel pool?” and “Could you build a jetpack using downward-firing machine guns?” 100,000 first printing. This Book […]

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