What If? Serious Scientific Answers to Absurd Hypothetical Questions

[Read by Wil Wheaton]From the creator of the wildly popular webcomic xkcd comes this hilarious and informative book of answers to important questions you probably never thought to ask.Millions of people visit xkcd.com each week to read Randall Munroe's iconic webcomic. His stickfigure drawings about science, technology, language, and love have a large and passionate following. Fans of xkcd ask Munroe a lot of strange questions. What if you tried to hit a baseball pitched at 90 percent of the speed of light? How fast can you hit a speed bump while driving and live? If there were a robot apocalypse, how long would humanity last?In pursuit of answers, Munroe runs computer simulations, pores over stacks of declassified military research memos, solves differential equations, and consults with nuclear reactor operators.