If you could choose only two things as a staple of any war movie, they'd probably be military jargon (like "roger" in military aviation) and hand signals. Whether it's Easy Company deep behind enemy ...

If you've ever looked outside an airport window while waiting for your flight to get underway, you've probably noticed the ground crew using hand signals. These hand signals are not just a means of ...

Humans can interact with each other using language and other perceivable methods, but what about animals? What do animals do when they need to communicate their needs to humans? Some light was shed on ...

Editor's note: This story contains mentions of possible domestic violence. Those facing domestic abuse can call the National Domestic Violence Hotline at 1-800-799-SAFE (7233) or visit its website for ...

When you write your name in the air, you can see the letters appear on your smartphone. By Cade Metz Reporting from San Francisco The prototype looks like a giant rectangular wristwatch. But it ...

If Apple ever does bring Face ID to the Mac, newly revealed research shows how the company could also use its LiDAR to recognize a user's hand gestures. While the patent does not mention Face ID or ...