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

In 2005, manufacturing conglomerate 3M placed $3 million inside bulletproof glass at a Vancouver, British Columbia, bus stop as part of a marketing stunt, challenging passersby to break the glass and ...

The amount of cash inside the glass was reportedly $500, not $3 million; also, the product wasn't "bulletproof glass," but rather a shatter-resistant film placed over the glass. What's Undetermined It ...