Imagine a world without batteries. It would be a much different world, in which the automobile and the telephone would have developed differently and probably later. It would also be a world without ...

By entering certain strings of numbers and symbols into your phone's dialer, you can gain access to a world of hidden ...

In an experimental procedure dubbed Prima, which has now been performed on a few dozen people, surgeons implant a 2-mm-by-2-mm computer chip with 400 hexagonal electrodes directly on the spot in the ...