Force field for tanks
In another sci-fi to reality transition, the British Ministry of Defense has developed an electric force field for its armored vehicles. But before visions of Star Trek dance in you heads, understand that it's not a forcefield in the traditional sense. It specifically defends against anti-tank grenade launchers such as the RPG-7, which use a jet of immensely hot copper to sear through armor and let the explosive in. The shield consists of two metal plates on the tank's exterior connected to a highly charged capacitor. When the RPG hits, it burns through the outer plate and the insulation of the inner on, thus completing the circuit and triggering thousand of amps, which vaporises the copper and keeps tho soldiers inside nice and safe. We would have loved to have seen the demonstration for this system, where they basically fired a bunch of rockets at an armored personnel carrier and watched them fry on contact. They then drove the APC away, instead of carting it away in piles.
