Tired of risking his life every time he had to signal a turn using his hands while riding his bicycle in rainy Vancouver, [Simon Wong] decided he needed something a bit higher tech. But rather than ...

When scuba divers need to say 'I'm okay' or 'Shark!' to their dive partners, they use hand signals to communicate visually. But sometimes these movements are difficult to see. Now, researchers have ...

When you hit your car's turn signal stalk and that little arrow flashes at you on the dash, you always hear a rhythmic clicking sound in sync with that flashing arrow. Here's what that is. That sound ...