News tagged with electrical resistance

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Superconductivity's third side unmasked

The debate over the mechanism that causes superconductivity in a class of materials called the pnictides has been settled by a research team from Japan and China. Superconductivity was discovered in the pnictides ...

Jun 17, 2011
4.8 / 5 (18) 42 | with audio podcast

Nature of bonding determines thermal conductivity

Optical data carriers such as DVDs, Blu-rays and CD-RWs store data in layers of so-called "phase change materials". In the future, these materials will enable the development of fast, non-volatile and energy-saving main memories. ...

May 03, 2011
not rated yet 1 | with audio podcast

Blood simple circuitry for cyborgs

Could electronic components made from human blood be the key to creating cyborg interfaces? Circuitry that links human tissues and nerve cells directly to an electronic device, such as a robotic limb or artificial eye might ...

Mar 30, 2011
4.8 / 5 (8) 0 | with audio podcast

Tiny heat engine may be world's smallest

(PhysOrg.com) -- Steam engines, combustion engines, and diesel engines are all different types of heat engines, which operate by converting heat energy into mechanical work. Although heat engines have existed ...

Feb 02, 2011 feature
4.7 / 5 (29) 10 | with audio podcast

Shining light on graphene sensors

National Physical Laboratory, together with an international team of scientists, have published research showing how light can be used to control graphene's electrical properties. This advance is an important ...

Jan 10, 2011
5 / 5 (3) 2

Tunable plastic thermometers

(PhysOrg.com) -- Researchers at the Universities of Queensland and New South Wales in Australia have discovered that the ability of a plastic to conduct electricity can be tuned by exposure to an ion beam. ...

Dec 15, 2010
5 / 5 (4) 1 | with audio podcast

Powerful new way to control magnetism

A team of scientists at Rutgers University has found a material in which an electric field can control the overall magnetic properties of the material. If the magnetoelectric effect discovered by the Rutgers group can be ...

Aug 23, 2010
4.7 / 5 (15) 2 | with audio podcast

Roller coaster superconductivity discovered

Superconductors are more than 150 times more efficient at carrying electricity than copper wires. However, to attain the superconducting state, these materials have to be cooled below an extremely low, so-called ...

Aug 18, 2010
4.7 / 5 (26) 30 | with audio podcast