Any military airbases feature plenty of ground crew using hand gestures and colorful wands to communicate with pilots. Here's ...

This one starts with your arm raised horizontally, your hand flat (palm down), and your thumb to your opposite shoulder, then sweeping it around to full extension. In both cases, the signal can be ...

A not-insignificant part of driving a vehicle of any kind, no matter how many wheels it has, is knowing the necessary methods for signaling intent — lane changes, warnings to other drivers, that ...

Studying two species, common cuttlefish ( Sepia officinalis) and dwarf cuttlefish ( Sepia bandensis ), the two researchers have identified four arm-waving signs, which they call “up,” “side,” “roll” ...

Researchers there knew that in most people like Rendulic, the brain is still trying to send signals through the spine to the muscles that control the arm and hand. Marco Capogrosso, an assistant ...

White headlight and red taillight must be used from dusk to dawn; Bell or other audible signal (not whistle) required; Working brakes required; Reflective tires and/or other reflective devices ...

Most bionic limbs are controlled by electrical signals generated by muscles moving near the attachment site. But when an arm is amputated above the elbow, the remaining muscles aren't enough to ...

These tiny hand signals can help out fellow motorbike enthusiasts ... it can get a little bit crowded. Raise one arm in the air, with your index finger extended, to let everyone know that they ...

“So, if we can build this technology to amplify neural signals, maybe we have a chance to restore arm and hand movement,” said Dr. Capogrosso, who led the research with Elvira ...