Justin Nagelberg uses the Sa in New York City. By replacing the metal skeleton with two canopies, the umbrella is lighter and has more headroom. Courtesy of Justin Nagelberg hide caption
A new Pew study finds that of all online environments, only online gaming is viewed as "starkly" more welcoming for men. Frederic J. Brown/AFP/Getty Images hide caption
Ramzi El-Fekih, CEO of Creova, stands in his server room in Tunis. He has built a mobile payments company, but because of banking restrictions, Tunisians can use his product only for domestic purchases. Aarti Shahani/NPR hide caption
Apple Pay is demonstrated at Apple headquarters in Cupertino, Calif. Marcio Jose Sanchez/AP hide caption
Feminist critic Anita Sarkeesian, seen here filming her Tropes vs. Women web series, recently canceled a talk at Utah State University after the school received threats of a mass shooting at the event. Jonathan McIntosh hide caption
Apple and Facebook's decisions to pay for female employees to freeze their eggs sparked a lively debate on the message it sends to women. iStockphoto hide caption
A view of the rewards screen on the Mango Health app. Meredith Rizzo/NPR hide caption
A technician opens a vessel containing women's frozen egg cells in April 2011 in Amsterdam. AFP/Getty Images hide caption
A borrower enters a code into a starter interrupt device installed in a car in Limerick, Pa. Rick Smith/AP hide caption
Corn farmer Jerry McCulley sprays the weedkiller glyphosate across his cornfield in Auburn, Ill., in 2010. An increasing number of weeds have now evolved resistance to the chemical. Seth Perlman/AP hide caption
A school official shows a pupil an infrared digital laser thermometer before taking his temperature in Lagos, Nigeria, in September. Starting this week, similar hand-held devices are checking foreheads for fever at some U.S. airports. Akintunde Akinleye/Reuters/Landov hide caption
"The sexts are currency," explains Hanna Rosin. Teenage girls told Rosin boys collect the photos like "baseball cards or Pokemon cards." iStockphoto hide caption