All folded up and ready to magnify: The Foldscope weighs less than two nickels, is small enough to fit in your back pocket and offers more than 2,000-fold magnification. TED/YouTube hide caption

itoggle caption TED/YouTube

Vital Sounouvou is an African entrepreneur who founded Exportunity.com, a company to help promote trade in Africa. Courtesy of Vital Sounouvou hide caption

itoggle caption Courtesy of Vital Sounouvou

Women shout slogans during a protest against the gang rape and hanging of two teenage girls. Beyond highlighting the rampant sexual violence in India, the crimes are drawing attention to a glaring and fundamental problem across the country that threatens women's safety: the lack of toilets. Altaf Qadri/AP hide caption

itoggle caption Altaf Qadri/AP

The 85 musicians in the Santa Cecilia Orchestra are paid professionals who play with other symphonies and in Hollywood studios. Courtesy of the Santa Cecilia Orchestra hide caption

itoggle caption Courtesy of the Santa Cecilia Orchestra

The Liftware device, shown here as an early prototype (left) and the final design, starts up automatically when it's lifted from the table. There's no "on" switch to fumble with. Ina Jaffe/NPR hide caption

itoggle caption Ina Jaffe/NPR

Theoneste Rwayitare, a Rwandan refugee who resettled in Vermont last year, pours powdered milk into a bucket for milking at the Vermont Goat Collaborative's Pine Island Farm. Angela Evancie for NPR hide caption

itoggle caption Angela Evancie for NPR