Randall Munroe is a cartoonist who looks at the physical world with a sarcastic eye. His website, www.xkcd.com, features a “What If?” section where he collects questions from readers and answers them. Now, these aren’t just any old questions, but thoughtful, sometimes slightly bat-shit-crazy questions. He answers them with a combination of imagination, drawings, physics, and math. Some of the more recent questions include: Could you get drunk from drinking a drunk person’s blood? Randall’s answer What took more energy,… Read more »