The Pentagon has been developing both offensive and defensive laser weapon capabilities for a number of years.
Syrian rebels have taken to creating a number of DIY weapons to battle against the Assad regime holed up in Damascus.
Grenades capable of producing an electromagnetic pulse have long been featured in genre games, movies and books.
The Lethal Miniature Aerial Munition System - or LMAMS - weighs less than 5 pounds. Ultimately, the US Army wants the kamikaze drone to be capable of attacking a target up to 6 miles away in 30 minutes or less.
The Pentagon is perpetually working on advanced weapons platforms that appear to be more science fiction than fact. However, the Navy's electromagnetic railgun is a fully-functioning reality.
Lightning guns are often thought of as weapons of science fiction, relegated to the pages of magazines, movie screens and video games.
The US military currently fields a number of non-lethal weapons systems to disperse hostile crowds without resorting to deadly force, including beanbag rounds and rubber bullets.
The United States Navy has been working to design a railgun that can be easily fitted to battleships and other surface craft to bolster the military's current arsenal.
Microsoft is poised to launch its Halo Reach multiplayer beta for the Xbox 360.
Psyko Audio Labs has introduced a 5.1 headset that allows hardcore PC gamers to precisely identify the source of muffled gunshots, light footsteps and overwhelmingly loud explosions.