logo

53 pages 1 hour read

Randall Munroe

What If?: Serious Scientific Answers to Absurd Hypothetical Questions

Randall MunroeNonfiction | Book | Adult | Published in 2014

A modern alternative to SparkNotes and CliffsNotes, SuperSummary offers high-quality Study Guides with detailed chapter summaries and analysis of major themes, characters, and more.

Themes

Absurd Questions and Useful Answers

Most questions about science sound relatively normal: “How can a submarine crew stay underwater for weeks?” “Why do helium balloons rise?” “What causes rainfall?” Scientists can straightforwardly answer these questions. The questions are sometimes downright weird: “How long could a nuclear submarine last in orbit?” (78). “How long of a fall would I need in order for [a helium] balloon to slow me enough that I could land safely?” (150). “What if a rainstorm dropped all of its water in a single giant drop?” (274). The author of What If? specializes in these questions; his answers take advantage of their weirdness to demonstrate interesting aspects of the world that ordinary questions and answers might not reveal.

Chapter 67 answers a question about a bullet made of solid neutrons—a material found only in super-dense neutron stars—saying it would be as heavy as the entire Empire State Building and, within inches of it, would have such concentrated gravity that it would capture a person and not let go. The weird question permits the author to describe the forces involved in neutron stars by describing the effects a thimble-full of the stuff would have on Earth.

A question about daring to swim in a pool containing spent nuclear fuel, asked in Chapter 3, opens up an opportunity for the author to explain that water is an excellent filter for radiation and that a swimming pool keeps a swimmer safer from radiation harm than when she stands next to the pool.

blurred text
blurred text
blurred text
blurred text
Unlock IconUnlock all 53 pages of this Study Guide

Plus, gain access to 8,450+ more expert-written Study Guides.

Including features:

+ Mobile App
+ Printable PDF
+ Literary AI Tools

Related Titles

By Randall Munroe