XKCD creator answers 'What if?'

Randall Munroe, author of the webcomic xkcd, has found another outlet for his inquisitive nature. Relentless curiosity is the driving force behind Internet phenomenon Randall Munroe’s new book, What If? Serious Scientific Answers To Absurd Hypothetical Questions. Munroe, a physicist and former NASA roboticist, is known for drawing xkcd, stick figure comics that cover a range of topics including math, coding and physics. The illustrated book, released on September 2, answers reader-submitted qu...