Kelvin Geis's PenMoto is not yet another iPad stylus. What it is is an accessory thatwill make the pen or stylus you already own a lot easier to use. The PenMoto consists of two parts, both containing ...

Researchers have observed three-dimensional magnetic vortex rings in a real-world magnetic material for the first time. Contrary to theoretical predictions, these rings – which are spin configurations ...

This paper introduces and explains the operation of electric power steering (EPS) systems, including the basic requirements for proper functionality and the significance of ring magnet in Hall-effect ...