http://phys.org/ en-us Phys.org internet news portal provides the latest news on science including: Physics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. (Phys.org)—GPS reduces battery life in a smartphone or tablet, a problem that has challenged a team led by principal researcher Jie Liu at Microsoft Research. Liu has said in the past that sensing and energy are emerging cross-cutting concerns in computer systems. "The proliferation of embedded and personal devices such as networked sensors and mobile phones gives computer systems increasing capability of gathering data from and adapting to the physical world and personal activities." http://phys.org/news275638185.html Technology Tue, 25 Dec 2012 08:10:01 EST news275638185 As semiconductor manufacturers build ever smaller components, circuits and chips at the nano scale become less reliable and more expensive to produce. The variability in their behavior from device to device and over their lifetimes - due to manufacturing, aging-related wear-out, and varying operating environments - is largely ignored by today's mainstream computer systems. http://phys.org/news201441196.html Technology Thu, 19 Aug 2010 13:20:01 EST news201441196