A flight attendant prepares to close a luggage bin on the redesigned 737. Thanks to the bin's new pivoting motion, passengers in the aisle seat will have more headroom. American Airlines hide caption

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A student works on her robot gladiator. Courtesy of National Tooling and Machining Association hide caption

toggle caption Courtesy of National Tooling and Machining Association

David Jackson (left) and Dave Petrillo of Coffee Joulies brought in more than $300,000 using Kickstarter.com. Paul Agus/Courtesy of Coffee Joulies hide caption

toggle caption Paul Agus/Courtesy of Coffee Joulies

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