Bullet-resistant car windows look deceptively ordinary, yet every pane is a small engineering project built to catch and slow ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Here’s what you’ll learn when you read this story: Since its invention, Kevlar has saved thousands of ...

Nobody has ever looked at ketchup, Silly Putty, or castor oil and thought, Hey, I wonder if that stuff is bulletproof? Which is one reason why it has taken so long to stumble on an impact-resistant ...