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

“What If?: Serious Scientific Answers to Absurd Hypothetical Questions” is a popular science book written by Randall Munroe, the creator of the webcomic “xkcd.” The book explores various hypothetical questions in a humorous and informative manner, providing scientifically accurate answers to absurd and imaginative scenarios.

In the book, Munroe uses his background in physics and mathematics to tackle a wide range of bizarre and amusing questions, often employing creative and sometimes outlandish explanations. He applies scientific principles, equations, and critical thinking to address these hypothetical scenarios, offering plausible and sometimes surprising outcomes.

Some of the questions he addresses in the book include:

1. What would happen if you tried to hit a baseball pitched at 90% the speed of light?
2. How many Lego bricks would it take to build a bridge from London to New York?
3. What would happen if the Sun suddenly went out?
4. Is it possible to build a jetpack using machine guns?
5. Could you build a swimming pool using nuclear weapons?

Munroe’s approach is to combine scientific knowledge, logical reasoning, and a touch of humor to explore these hypothetical scenarios. The book aims to entertain and educate readers by presenting complex scientific concepts in a digestible and enjoyable format.

It’s important to note that while the book provides scientific explanations, some of the scenarios discussed are purely hypothetical and not intended to be taken as practical or realistic situations. The primary goal is to engage readers in scientific thinking and spark their curiosity about the world around them.