If you twist something — say, spin a top or rotate a robot’s arm — and want it to return to its exact starting point, ...

The world is filled with rotating objects—gyroscopes, magnetic spins, and more recently, qubits in quantum computers. For ...

Mathematicians thought that they understood how rotation works, but now a new proof has revealed a surprising twist that makes it possible to reset even a complex sequence of motion ...

Abstract: This paper introduces the operation and features of Spin-Transfer-Torque Magnetoresistive Random Access Memory (STT-MRAM), and provides a brief history of the field. Then the four main ...