If you are afraid of heights, this is a super scary video. In case you are too afraid to watch it, this dude jumps off the top of a building that is listed at 129 feet and lands in water. But wait!

The Office of Naval Research is getting ready to deploy their electromagnetic Railgun for testing for the first time next year. But what is a gun without ammo? The Hyper Velocity Projectile is being ...

The Navy, DoD and even the Army are also experimenting with integrating the rail gun hypervelocity projectile with existing weapons platforms such as the Navy’s 5-inch guns or Army Howitzer. Also, the ...

Figure 1: Formation of Copernicus crater by a low-speed impact. Figure 3: Impact velocity distribution on the Moon. The planetary geology community has not previously considered the possibility that ...

The Pentagon is pursuing an innovation missile-defense system that could address some of the shortcomings of the existing systems it deploys. There are a number of major (somewhat interrelated) ...

WE are told in the Preface to this work that “the consideration of the motion of a projectile naturally divides itself into three parts—first, its motion in the bore of the gun; second, its motion ...