One of the most difficult was rotating two Baoding balls around the palm without dropping them, but the researchers’ models impressively managed to solve it using just 100,000 data points’ (or ...

Designed to mimic the human hand, this robot device with tendons can rotate two Baoding balls with ease - simulating the same process completed by your body. We're told by Gizmodo that this task ...

EXERCISE 2: ROLL YOUR ROCKS Cradle two balls in your right hand. Using your fingers, roll them clockwise in your palm, as if they were Chinese Baoding balls (left photo, below).