News tagged with physicists

DNA prefers to dive head first into nanopores

(Phys.org)—In the 1960s, Nobel laureate Pierre-Gilles de Gennes postulated that someday researchers could test his theories of polymer networks by observing single molecules. Researchers at Brown observed ...

Jan 08, 2013
4.3 / 5 (3) 0 | with audio podcast

Powering lasers through heat

In micro electronics heat often causes problems and engineers have to put a lot of technical effort into cooling, for example micro chips, to dissipate heat that is generated during operation. Austrian physicists ...

Nov 13, 2012
5 / 5 (6) 2 | with audio podcast

Graphene switches: Team makes it to first base

Ever since graphene was first isolated a few years ago, this quasi-two-dimensional network made up of a single layer of carbon atoms has been considered the magic material. Not only is graphene mechanically ...

Nov 27, 2012
4.8 / 5 (9) 0 | with audio podcast

Elementary physics in a single molecule

A team of physicists has succeeded in performing an extraordinary experiment: They demonstrated how magnetism that generally manifests itself by a force between two magnetized objects acts within a single molecule. This discovery ...

Jul 25, 2013
4.8 / 5 (5) 0 | with audio podcast

It pays to cooperate

Many species exhibit cooperative survival strategies—for example, sharing food or alerting other individuals when a predator is nearby. However, there are almost always freeloaders in the population who will take advantage ...

Nov 13, 2012
5 / 5 (2) 0 | with audio podcast

DNA's double stranded stretch

(Phys.org)—Theoretical physicists like to play with very unconventional toys. Manoel Manghi from Toulouse University in France and his colleagues have adopted a seemingly playful approach to examining what happens to a ...

Oct 25, 2012
4.3 / 5 (3) 0 | with audio podcast

May the force be with the atomic probe

New models suggest devising means of probing a surface at a sub-micrometric level as this will help us understand how electrons' diffusion affects long-range attractive forces.

Dec 21, 2012
5 / 5 (5) 2 | with audio podcast