[Mike] built a sensor rig to measure projectile speed. The setup uses a tunnel with two sensors in it. Each consists of a laser diode on one side focused on a photodiode in the other. The two are ...

Discover the science and technology behind the electromagnetic railgun, a revolutionary long-range naval weapon that uses ...

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 ...

(Phys.org) —A team of researchers from Aix-Marseille University in France has found that the number of cracks that appear in a pane of glass or other brittle material resulting from a projectile ...

To measure dynamics, we use a line-scan digital CCD (charge-coupled device) camera to image a finely striped transparent rod attached vertically to the top of the projectile (see the Methods section).

You might think that if you have a need to measure the speed of a projectile that is too fast for your high-speed camera, you would have to invest in some significantly expensive equipment. That was ...