Lately it seems like the more the merrier, as far as rings go. What likely evolved from the trend of stackable rings across several of your fingers is the two-finger ring trend. It's the perfect way ...

Robo-fingers could help humans get a grip. A new type of wearable robot pairs two tonglike digits with a wrist brace to give a person the dexterity of a seven-fingered hand. After slipping on the ...