A recent UCLA study found that screen time could negatively affect children's ability to read emotion. But scientists are still unsure how much screen time is too much for a child. Anatoliy Babiy/iStockphoto hide caption

itoggle caption Anatoliy Babiy/iStockphoto

Meg Whitman, the current president and CEO of Hewlett-Packard, will lead one of the two companies the tech giant is creating by dividing its corporate services and printing/PC units. Richard Drew/AP hide caption

itoggle caption Richard Drew/AP

Teachers are incorporating mobile technology and a digital sensibility into classroom lessons with assignments such as this one: to caption a historical photograph for teacher Nicholas Ferroni's high school history class in Union, N.J. Courtesy of Nicholas Ferroni hide caption

itoggle caption Courtesy of Nicholas Ferroni

Lenox Mall, in the Buckhead neighborhood of Atlanta, used to be the site of a country home estate and is now a traditional indoor mall with two anchor stores. Madeline Veira/Youth Radio hide caption

itoggle caption Madeline Veira/Youth Radio

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

As the doctor examines a patient, medical scribe Connie Gayton records the visit using a microhone tethered to her laptop. Brandon Thibodeaux for NPR hide caption

itoggle caption Brandon Thibodeaux for NPR

Satellite imagery provided to the Australian Maritime Safety Authority of objects that may be possible debris of the missing Malaysia Airlines Flight MH370. Australian Maritime Safety Authority hide caption

itoggle caption Australian Maritime Safety Authority

The Organ Care System keeps lungs warm, breathing and nourished while outside the body. MediCommConsultants hide caption

itoggle caption MediCommConsultants

Amanda Gerety, a staff nurse at Boston Medical Center, checks monitors that track patients' vital signs. Fewer beeps means crisis warnings are easier to hear, she says. Richard Knox/NPR hide caption

itoggle caption Richard Knox/NPR

A mathematician's sweet dream: For about $10,000, you can print out rainbow sugar dodecahedrons and interlocking cubes. 3D Systems hide caption

itoggle caption 3D Systems

The National Security Agency headquarters at Fort Meade, Md. The agency has been trying to build a quantum computer, The Washington Post reports — but that news doesn't surprise experts in the field. Saul Loeb/Getty Images hide caption

itoggle caption Saul Loeb/Getty Images

The question of how humans process the flood of electronic media was a central part of the work of Stanford University sociology professor Clifford Nass, who died recently. Citing multiple studies, Nass said people often overestimate their ability to multitask. iStockphoto.com hide caption

itoggle caption iStockphoto.com

Apple has bought a factory in Arizona that will be re-purposed to make sapphire glass. The material is used in the iPhone 5s, seen here, as well as in the wristwatch industry. Andy Wong/AP hide caption

itoggle caption Andy Wong/AP

Hackers pose at Disrupt Hackathon in 2011. Araya Diaz/Getty Images hide caption

itoggle caption Araya Diaz/Getty Images