Paul J. Nahin

The Art of the "What-If?"

The Delicate Art of Brute Force

The Mathematical Radio

The Probability Integral

In Pursuit of Zeta-3

When Least Is Best

The Logician and the Engineer (Unabridged)

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

Holy Sci-Fi!: Where Science Fiction and Religion Intersect (The Science and Fiction Series)