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February 2013 Issue

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February 2013 Issue

Engineering careers come in all shapes and sizes

Simon Hauger helps inner-city high schoolers build cars and start businesses

Christian Ochsenbein was the engineer on board the only solar boat to circumnavigate the globe

Marcia Lee shapes the Khan Academy’s tools for Web-based instruction

At Bang & Olufsen, Geoff Martin brings a musician’s sensibilities and an engineer’s precision to loudspeaker design

Li Chen turns ordinary sports goggles into digital dashboards

Paper electronics could pave the way to a new generation of cheap, flexible gadgets

A decadelong quest aims to pinpoint the Internet bottlenecks holding Africa back

How a buccaneering young engineer built the little blue box that broke into the biggest network in the world

A Bluetooth connection lets you use an app to monitor your dental hygiene

The Arduino Leonardo makes creating USB peripherals simple

Smart receivers seek out quiet spots in the noisy, overcrowded airwaves

Experiments push electron-spin signals to record lengths

Marsh grasses can power small fuel cells

Airborne altimeters yield a disturbing picture of polar ice loss

Greater agility in output may keep Old King Coal in place in a nonnuclear Germany

Social media is just the latest technological assault on our free time, and on our language

DARPA shouldn’t fund programs in primary or secondary schools, even if they help improve STEM education

Photovoltaics are generating employment as well as electricity

The company’s Twine sensors simplify home monitoring

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