News tagged with electrical devices

New material holds big energy hope

(Phys.org) —A new material that can store large amounts of energy with very little energy loss has been developed by researchers at the Australian National University.

Jul 01, 2013
4.5 / 5 (44) 14 | with audio podcast

Hair sensor uncovers hidden signals

An "artificial cricket hair" used as a sensitive flow sensor has difficulty detecting weak, low-frequency signals – they tend to be drowned out by noise. But now, a bit of clever tinkering with the flexibility ...

Jun 06, 2013
5 / 5 (3) 0 | with audio podcast

Making frequency-hopping radios practical

The way in which radio spectrum is currently allocated to different wireless technologies can lead to gross inefficiencies. In some regions, for instance, the frequencies used by cellphones can be desperately ...

May 15, 2013
5 / 5 (7) 0 | with audio podcast