University of Southern California

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

May You Stay Forever Young

Before plastic surgery and botox, an ancient culture had a different way of dealing with the quest for eternal youth. Why not simply live forever? In medieval China, third century B.C., people believed it ...

May 27, 2009 2.9 / 5 (11) 2