SmartRounds - Smart Bullets. A Working Assault Rifle Made With a 3-D Printer. Get ready.
It's now possible to print weapons at home. An amateur gunsmith, operating under the handle of "HaveBlue" (incidentally, "Have Blue" is the codename that was used for the prototype stealth fighter that became the Lockheed F-117), announced recently in online forums that he had successfully printed a serviceable .22 caliber pistol. A Pollen Coating Could Help Identify Who Fired a Bullet. When a bullet is recovered at a crime scene, ballistic identification can help track the gun that fired it, but identifying the person who fired the gun is a lot harder.
Now scientists have found an unlikely method to ID gunmen on the lam, using flower pollen. Paul Sermon, a nanomaterials engineer at Brunel University in London, along with a team of researchers, starts the process by dipping the cartridge in a solution of aluminum oxide and urea.