Getting to Bono: A Cover History
A portrait of the U2 frontman wasn’t our first pick for the cover of the January/February issue. But as the magazine came together, it seemed the clear choice. Here’s how it happened.
Communications
First 3-D Images Created With Single Pixel Sensor
Chinese physicists use ghost imaging technique to make 3D images with a single pixel
Google’s Private Cell Phone Network
A small cell network over the company's HQ could herald new competition for established carriers.
Incoming Call: Facebook
Could the social network ever become something like a carrier?
Flexible Smartphone Batteries
A discovery from a Korean research team gets us closer.
Apple Looks to Improve Siri’s Script
"Character-driven dialogue" will help the virtual assistant evolve, says an Apple job ad.
How Delays Propagate Across the US Airport Network
A new computer simulation shows how the flight delays spread across the US airport network like wildfires
New Mobile OSs May Mean the End of the Closed App Store
Operating systems that support open Web standards could undermine tightly-controlled marketplaces for mobile apps.
First Physics-Like Experiments For Measuring Group Behaviour of Living Creatures
Physicists are using "ideal gas-like" experiments to measure the diffusion of swarms of creatures, an approach that could revolutionise the way researchers understand group behaviour
The Latest on Google Glass
A project in flux, though with great promise.
