What If? 2: Additional Serious Scientific Answers to Absurd Hypothetical Questions by Randall Munroe

Nerd royalty' Ben Goldacre
'Laugh-out-loud funny' Bill Gates
'Totally brilliant' Tim Harford

WHAT IF you still had so many more strange questions about the universe?

And WHAT IF Randall Munroe, former NASA roboticist and xkcd creator, were prepared to move mountains, fill the solar system with soup and alter the space-time continuum to answer them?

Whether it's how to make a lava lamp out of lava or how many bananas would be required to fill every church on Earth, welcome to the weird, wonderful (and sometimes terrifying) world of WHAT IF? 2