News tagged with electrical transport

Two takes on lithium-ion batteries

Lithium-ion batteries have transformed our lives. Without them, we wouldn't have laptop computers or cell phones—at least, not the long-lived, lightweight kindwe're used to—and in the near future they ...

Apr 16, 2013
5 / 5 (2) 5

Temperature fluctuations cause excess noise

The thermal noise of the electric current has been well known for almost a century. In an article published this week in Physical Review Letters, a group of researchers from the Low Temperature Laboratory of Aalto Univer ...

May 14, 2010
4.5 / 5 (2) 1

Renewable energy: Nanotubes to channel osmotic power

The salinity difference between fresh water and salt water could be a source of renewable energy. However, power yields from existing techniques are not high enough to make them viable. A solution to this problem may now ...

Mar 01, 2013
4.5 / 5 (2) 3

Making liquid crystals stand tall

Most liquid-crystalline displays contain rod-like molecules that quickly switch from one orientation to another when subjected to electric fields. This movement creates a shutter effect that turns light on ...

Nov 21, 2011
5 / 5 (1) 1

TOSA buses power up for less

EPFL scientists have developed a mathematical model to minimize the infrastructure and operational costs of the TOSA ultra-rapid rechargeable electric bus system.

Jun 16, 2014
5 / 5 (1) 0