News tagged with electrical devices

Making a better invisibility cloak

The first functional "cloaking" device reported by Duke University electrical engineers in 2006 worked like a charm, but it wasn't perfect. Now a member of that laboratory has developed a new design that ...

Nov 11, 2012
4.5 / 5 (17) 3 | with audio podcast

Wireless charging explained

Wireless charging has been around for a several years now, but it's never really been that good. Until now, that is. The Nokia Lumia 920 and Lumia 820 (with the aid of the recharging shell) are the first Nokia smartphones to support this new feature, making ch ...

Oct 02, 2012
3.2 / 5 (5) 5

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 ...

Aug 31, 2012
4.7 / 5 (3) 0 | with audio podcast