Art of the "What-If?"

Time Machine Tales: The Science Fiction Adventures and Philosophical Puzzles of Time Travel

The Mathematical Radio: Inside the Magic of Am, Fm, and Single-Sideband

When Least Is Best

The Logician and the Engineer

In Praise of Simple Physics

Duelling Idiots and Other Probability Puzzlers

How to Fall Slower Than Gravity. And Other Everyday (and Not So Everyday) Uses of Mathematics and Physical Reasoning, Paperback

In Pursuit of Zeta-3: The World's Most Mysterious Unsolved Math Problem, Hardcover

Inside Interesting Integrals: A Collection of Sneaky Tricks, Sly Substitutions, and Numerous Other Stupendously Clever, Awesomely Wicked, and Devili