In Pursuit of the Unknown: 17 Equations That Changed the World cover
In Pursuit of the Unknown: 17 Equations That Changed the World
by Ian Stewart
ISBN: 0465085989
Buy on Amazon
Found in 1 comment on Hacker News
alister · 2014-03-09 · Original thread
This list is the basis of a book by the same author:

http://www.amazon.com/In-Pursuit-Unknown-Equations-Changed/d...

It's extremely easy to find a free PDF download of the book. I'm assuming the free PDF has been authorized, how does one even tell these days short of contacting the author?