John Raoux /AP Photo

Technology is key to keeping tabs on 40,000 steel beams to be used for Daytona Rising, the nickname of the $400 million renovation underway at the Daytona International Speedway in Florida. Engineers use iPads to check bar codes attached to each beam to make sure it ends up in its proper place according to the "blueprint," which is really plans that were converted into a massive 3D rendering created by a laser scanner. The project is scheduled for completion in 2016.

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