In 1986, the German Army conducted a demonstration to showcase the remarkable precision of its Leopard 2 main battle tank. Engineers placed a full mug of beer on the end of the tank’s 120 mm cannon and drove it across rough terrain. Despite the bumps and jolts, not a single drop was spilled. This test wasn’t just a stunt—it was meant to demonstrate the tank’s advanced stabilization system, which keeps the gun perfectly steady even while in motion. The same technology allows the Leopard 2 to fire