[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 ...

This project shows the need for perfect synchronization of the camera and bullet shoot in order to produce a photograph at the speed of a bullet. This project shows the need for perfect ...

A “smart bullet” that can be fired at a target and then wirelessly transmit back useful information has been developed by US researchers. The projectile, created at the University of Florida in ...