David Greene talks to materials chemist Donald Sadoway from the TED (Technology, Entertainment and Design) conference in Long Beach, Calif. Sadoway is the co-inventor of the liquid metal battery. It's inexpensive, super efficient, sustainable and can provide large scale energy storage.
The district of Baba Amr in the city of Homs had been the heart of the Syrian uprising, where mass protests turned into an armed resistance. Activists say government troops are combing the area, arresting any male over the age of 12.
When Grant Coursey was a toddler, he was diagnosed with neuroblastoma, a cancer often found in young children. A tumor had wrapped itself around Grant's spinal cord and had grown so that it pushed against his lungs.
Now 12, Grant is cancer-free; he received his first "clean" scan 10 years ago in March 2002. He had to undergo several procedures to rid his body of the cancer.
Recently, Grant and his mother, Jennifer, sat down to talk about his young life and how cancer has affected it.
In the late 1960s, while America was in turmoil over the Vietnam War and the assassinations of Martin Luther King Jr. and Robert Kennedy, a painter in Santa Monica, Calif., was creating a series of tranquil, glowing canvases that made his reputation and transfixed art lovers. Those works â€” the Ocean Park series â€” are now on view at the Orange County Museum of Art, about an hour's drive from the place where they were painted.
Armed with tips from animal welfare activists, I recently went on an ivory hunt with my Chinese assistant, Yang, in an antiques market in Beijing.
Activists say China's growing purchasing power is driving global demand for products from vulnerable animals, everything from elephant ivory to rhino horn.
Two huge stone lions stood sentinel outside the four-story market nestled among a forest of buildings off one of Beijing's beltways. In China, vendors usually accost shoppers and try to lure them into stores.