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John Park hacks a Wii controller and turns it into a personal flight recorder that can sense and measure the stomach-churning G forces of roller coasters and other high-speed, high-risk activities.

John Edgar Park

John Edgar Park

John Edgar Park likes to make things and tell people about it. He works at Disney Research and writes for Make and Boing Boing. He is training for American Ninja Warrior. You can find him at jpixl.net and twitter @johnedgarpark — if you like that sort of thing.