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From cooling the atmosphere by opening everyone's freezer doors to making a lava lamp out of actual lava, the gleefully eccentric author of What If? tackles more absurd questions from the public using sober and level-headed science. What if... one man decided to answer all the unanswerable questions, using science. The Sunday Times-bestselling author and xkcd creator, Randall Munroe is here to provide the best answers yet to the important questions you probably never thought to ask.