H. Beam Piper
This book is available for download with iBooks on your Mac or iOS device, and with iTunes on your computer. Books can be read with iBooks on your Mac or iOS device.
An interesting, if slightly disturbing short sci-fi story looking at some of the worst parts of human nature. Lee Richardson and Alexis Pitov, two nuclear scientists, are participating in a thermonuclear test involving a rocket and negamatter. The test is decidedly not a test to develop into weapons-grade materials. However, Pitov and Richardson cannot help but consider the fate of Auburn, NY fifteen years ago when the nuclear event shocked the world.