Add Yahoo as a preferred source to see more of our stories on Google. We've all been there: You go to pull out a necklace that you haven't worn in quite some time, only to find it's become enmeshed ...

Physicists may have found a solution for the rage-inducing tangles that crop up in everything from electronics cords to necklaces: to free a single thread from a tangle of many, you must shake it not ...