Military movies frequently depict soldiers communicating with a flurry of hand signals, but what exactly do those signals ...

A UK startup called Open Bionics has just unveiled the world's first wireless bionic arm, called Hero — and it's so advanced ...

Common hand signals and how to legally use them are among the most important tips every motorcycle rider should know. State driving laws contain provisions for hand signals that apply not only to ...

Combining two different kinds of signals could help engineers build prosthetic limbs that better reproduce natural movements, ...

Less discerning viewers wouldn’t have noticed the alleged signal at all, or if they had, would have easily mistaken it for Bash’s hand at rest in something like a gesture of OK. It was ...