Here are the top 10 military traditions that need a lot of explaining to your civilian family members.
Sandia's Self-Guided Bullet
Sandia researchers have invented a dart-like, self-guided bullet for small-caliber, smooth-bore firearms that could hit laser-designated targets at distances of more than a mile (about 2,000 meters). The four-inch-long bullet has actuators that steer tiny fins that guide it to its target. Read more at https://share.sandia.gov/news/resources/news_releases/bullet/