UCLA researchers have developed LCDs with photovoltaic polarizers that can turn light wasted by the screen back into energy for the phone. Since screens use the most battery power, the technique could lead to significant increases in battery life.
Scientists report the discovery of antimatter particles held by the Earth's magnetic field, created by collisions of high-energy cosmic rays with particles from the upper atmosphere.
Mantle plumes have long been thought to affect the motion of tectonic plates, but teasing out evidence for the idea has been difficult. A paper published in Nature may finally provide a solid example.