The Last Recreations Hydras, Eggs, and Other Mathematical Mystifications

"It's fitting that a man who has written so lucidly on paradoxes has had a career that is in itself a bit of a paradox. Martin Gardner never took a mathematics course in college, yet probably has done more to stimulate an appreciation for curiosity about,...

 Columbia - Final Voyage The Last Flight of NASA's First Space Shuttle

The last flight of the space shuttle Columbia made worldwide headlines because it ended in disaster. But there is a lot more to the story of STS-107 than death and destruction. Philip Chien, with his first-hand knowledge of the shuttle program and its his...

 Brute Force Cracking the Data Encryption Standard

"DES, the workhorse of cryptography and the U.S. government encryption standard for just shy of twenty years (from 1978 to 1997), was used to protect a vast array of sensitive information in the United Stated and throughout the rest of the world. Many cry...