Archive: 09/27/2013

Weighing the Antarctic ice sheet

One of the last big unknowns in the global climate equation is Antarctica. How stable is the Antarctic ice sheet? More than a mile thick, on average, it locks up 70 percent of the Earth's fresh water.

Sep 27, 2013 4.3 / 5 (7) 0

Bright, laser-based lighting devices

As a modern culture, we crave artificial white lights—the brighter the better, and ideally using less energy than ever before. To meet the ever-escalating demand for more lighting in more places and to ...

Sep 27, 2013 4.7 / 5 (16) 2 | with audio podcast