His complex equations describe the havoc
wreaked by catastrophic collisions.
By William Speed WeedPosted 10.29.2004 at 8:05 pm 0 Comments
Powerful explosions take place near James Walker’s office in San Antonio, Texas, every day. At two adjacent shooting ranges, testers fire guns, and in a third facility built to simulate massive impacts, they smash materials into targets at more than 25,000 miles an hour.