News tagged with conduct electricity

'Colossal' Magnetic Effect Under Pressure

(PhysOrg.com) -- Millions of people today carry around pocket-sized music players capable of holding thousands of songs, thanks to the discovery 20 years ago of a phenomenon known as the “giant magnetoresistance ...

Jun 05, 2009
4.4 / 5 (23) 3

Transparent solar cells

(PhysOrg.com) -- If solar cells were transparent they could be fitted to windows and building facades. Physical modeling helps in the development of suitable materials for transparent electronics and thus ...

Jun 02, 2009
4.4 / 5 (11) 6

EarthTalk: What is 'nanotechnology'?

Dear EarthTalk: What is "nanotechnology"? I've heard that nanoparticles are already in consumer products, yet we haven't really studied their potential health impacts. (Dan Zeff, San Francisco)

May 25, 2009
3 / 5 (5) 4

Paper electrified by copper particles

The Polymer Chemistry Research Group at the University of Helsinki, Finland, has succeeded in producing nano-sized metallic copper particles. When the size of particles is reduced to a nano-scale (one nanometre being one ...

Mar 16, 2009
2 / 5 (1) 0

Intelligent use of the Earth's heat

Geothermal energy is increasingly contributing to the power supply world wide. Iceland is world-leader in expanding development of geothermal utilization: in recent years the annual power supply here doubled ...

Feb 27, 2009
4.6 / 5 (8) 1

Batteries get a (nano)boost

Need to store electricity more efficiently? Put it behind bars. That's essentially the finding of a team of Rice University researchers who have created hybrid carbon nanotube metal oxide arrays as electrode material that ...

Feb 09, 2009
5 / 5 (12) 1