News tagged with voltage

Electrified graphene a shutter for light

(Phys.org) -- An applied electric voltage can prompt a centimeter-square slice of graphene to change and control the transmission of electromagnetic radiation with wavelengths from the terahertz to the midinfrared.

Jun 15, 2012
5 / 5 (4) 1 | with audio podcast

Graphene battery demonstrated to power an LED

(PhysOrg.com) -- Scientists in Hong Kong have reported, in ArXiv, their experiments to make a graphene battery that they say generates an electrical current by drawing on the ambient thermal energy in the sol ...

Mar 16, 2012 report
4.2 / 5 (26) 24 | with audio podcast

New 'soft' motor made from artificial muscles

The electrostatic motor, used more than 200 years ago by Benjamin Franklin to rotisserie a turkey, is making a comeback in a promising new design for motors that is light, soft, and operates without external electronic controllers.

Feb 15, 2012
4.8 / 5 (9) 0 | with audio podcast

Elpida Memory develops resistance RAM prototype

Elpida Memory, the world's third largest Dynamic Random Access Memory ("DRAM") manufacturer, today announced the development of its first-ever high-speed non-volatile resistance memory (ReRAM) prototype. As the ReRAM prototype ...

Jan 24, 2012
4.2 / 5 (5) 1

World's longest superconductor cable

The "AmpaCity" project has been kicked off: The RWE Group and its partners are just about to replace a 1-kilometre-long high-voltage cable connecting two transformer stations in the Ruhr city of Essen with ...

Jan 19, 2012
4.5 / 5 (8) 9