Tunable antenna could end dropped cell phone calls

(Phys.org) —Why do cell phones drop calls? Like a radio dial tuned to different frequencies (stations), cell phone antennas have tuning circuits that quickly switch frequencies when controlled by a voltage applied to a ...

New Web tool WolframAlpha launches test run

Google rules the roost when it comes to Internet search and has easily brushed aside efforts by Yahoo!, Microsoft and others to knock it off its perch.

Engineers introduce rehab robot HARMONY

Researchers in the Cockrell School of Engineering at The University of Texas at Austin have developed a first-of-its kind, two-armed, robotic rehabilitation exoskeleton that could provide a new method of high-quality, data-driven ...

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