Gentex Corp.'s rearview mirror camera display enables drivers to see objects and people behind the vehicle using a tiny camera mounted to the back of the car. Courtesy of Gentex Corp. hide caption

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Astronaut Steve Bowen works outside the International Space Station's Quest airlock during Monday's spacewalk. Bowen's spacewalk was unexpectedly extended by a computer malfunction. NASA TV hide caption

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Variations On Chocolate Cake: Google's new Recipe View is designed to help cooks sift through recipes on the web. Here, the results for a search for Molten Chocolate Cake. NPR hide caption

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A still from the video game Call of Juarez: The Cartel. YouTube hide caption

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Researchers found that as groups of black-tailed prairie dogs and other rodents became larger, it also became easier to identify individuals. Kimberly Pollard/UCLA hide caption

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A mobile phone shows a Skype application. Josep Lago/AFP/Getty Images hide caption

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Jeopardy contestants Ken Jennings (left), Brad Rutter and a computer named Watson. Carol Kaelson/AP hide caption

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