Rolling, Rolling, Rolling ...

A toy ball moves under the command of a smart-phone application.

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Small Gains

Wind and solar power are ­ramping up quickly, but the world’s demand for electricity is growing much faster.

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The Other Side of CES

Every January, up to 150,000 people swarm the ­Consumer Electronics Show in Las Vegas, where they mainly see salesmen and models touting slick gadgets under bright lights. Most visitors miss the ­surprises that can be found in a plain corner called the “International Gateway,” where manufacturers from Asia display unglamorous components and offbeat items.

Photographs by Gregg Segal

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Tesla's New Car: A Luxury SUV, with Wings

The Model X will help Tesla compete better with large automakers.

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A Robot Recruit that Can Do It All

Strong enough to tow a car, Warrior is designed to be a jack-of-all-trades for military, police, and rescue services.

Windows on an iPad

By downloading a free application to an iPad, users get two gigabytes of storage and access to popular Office software.

The Robots of CES

Meet a cycling android, a remote-controlled orb, and other robotic curiosities from last week’s Consumer Electronics Show.

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The Future Looks Augmented

Devices on display at CES could become next year’s augmented-reality products.

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Gadgets Galore: CES 2012 Photo Gallery

Products that debuted at CES include a cell-phone-controlled padlock, waterproof goop for your gadgets, a smart baby monitor, and more.

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