Physics - Plasma Physics news

Cool plasma packs heat against biofilms

Though it looks like a tiny purple blowtorch, a pencil-sized plume of plasma on the tip of a small probe remains at room temperature as it swiftly dismantles tough bacterial colonies deep inside a human tooth. But it's not ...

Jun 11, 2009
4.8 / 5 (12) 9

Wrangling flow to quiet cars and aircraft

Plasmas are a soup of charged particles in an electric field, and are normally found in stars and lightning bolts. With the use of high voltage equipment, very small plasmas can be used to manipulate fluid ...

Oct 18, 2013
5 / 5 (11) 1 | with audio podcast

The perfect liquid -- now even more perfect

Ultra hot quark-gluon-plasma, generated by heavy-ion collisions in particle accelerators, is supposed to be the "most perfect fluid" in the world. Previous theories imposed a limit on how "liquid" fluids can ...

Jan 17, 2012
4.9 / 5 (11) 9 | with audio podcast

Understanding the turbulence in plasmas

A longstanding joke holds that practical fusion power is about 20 years away—and always will be. One simple phenomenon explains why practical, self-sustaining fusion reactions have proved difficult to achieve: Turbulence ...

Apr 29, 2013
4.9 / 5 (11) 2 | with audio podcast

Putting a new spin on tokamak disruptions

In the quest for fusion energy on earth, researchers use magnetic fields to insulate hot plasma from the walls of the chamber to maintain the reaction and prevent damage to interior surfaces. In the tokamak, ...

Nov 13, 2013
4.5 / 5 (12) 15