A millimeter-scale, wirelessly powered cardiac device

A team of engineers at Stanford has demonstrated the feasibility of a super-small, implantable cardiac device that gets its power not from batteries, but from radio waves transmitted from outside the body. The implanted device ...

Cellphone jamming raises transit users' ire

Silencing the loudmouth cellphone user across the aisle is surely a common fantasy among transit riders. But how often do they fulfill their wish and become peace-and-quiet vigilantes - despite decades-old laws against blocking ...

Novel man-made material could facilitate wireless power

Electrical engineers at Duke University have determined that unique man-made materials should theoretically make it possible to improve the power transfer to small devices, such as laptops or cell phones, or ultimately to ...

Giant box close to being over oil-spewing well

(AP) -- A mission to the bottom of the sea to try to avert a wider environmental disaster progressed early Friday as crews said a 100-ton concrete-and-steel box was close to being placed over a blown-out well on the Gulf ...

Install and Forget: Batteryless Radio Sensors

Siemens has developed a variety of energy autarkic radio sensors that draw the energy they require for operation from their surroundings. The technology can be used to automatically monitor facilities in remote areas, for ...

Explained: Gallager codes

In the 1948 paper that created the field of information theory, MIT grad (and future professor) Claude Shannon threw down the gauntlet to future generations of researchers. In those predigital days, communications channels ...

New species of coral, sponges found near Hawaii

(AP) -- New and dramatic species of coral and sponges have been found in the Pacific during deep sea dives near the Northwestern Hawaiian Islands, scientists said Monday.

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