Transcutaneous electrical nerve stimulation (TENS) is a therapy that uses low-voltage electrical current for pain relief. You do TENS with a small, battery-powered machine about the size of a pocket radio.
User Experience (UX) Design: Concept Definition. User experience (UX) design is a process of creating products that provide meaningful and personally relevant experiences. This involves the careful design of the usability and pleasure derived from using a product.
PhysX is a proprietary realtime physics engine middleware SDK. PhysX was authored at NovodeX, an ETH Zurich spin-off. In 2004, NovodeX was acquired by Ageia, and in February 2008, Ageia was acquired by Nvidia.