DARPA has conducted a new test of its self-steering bullets, with both experienced and novice shooters successfully hitting moving targets. The testing proves the effectiveness of the projectile, which was developed under the Extreme Accuracy Tasked Ordnance (EXACTO) program, but the agency is still playing its cards close to its chest when it comes to how the technology actually works.
Many archers in adventure stories and comic books use arrows with unusual heads. These include the standard explosive and grappling hook arrows, and the not-so-standard
boxing glove arrow, Greek fire arrow, handcuffs arrow, and the ever popular atomic warhead arrow. While real archers generally have to make do with target and field heads, Louisiana-based archery company Rac-Em-Bac is now providing some spirited alternates.
Most people have experienced the sonic boom of a skillfully wielded whip, or the closely related crack of a nearby bolt of lightning. Such sounds have a character that attracts a good deal of attention, which is why the US Special Operations Command (SOCOM) is trying to silence them. The crack of a rifle shot is the sonic boom of a supersonic bullet, making stealthy ground missions difficult to accomplish. To address this need, SOCOM has issued a Small Business Innovation Research request for proposal (SBIR-RFP) for a feasibility study of suitable subsonic rounds.