A fourteen-year-old has discovered that the tiny magnets inside the iPad can inadvertently shut off pacemakers if the device is left on the chest, such as might happen if the user falls asleep with the iPad lying on them. Apple builds magnets into every iPad it sells for use with its Smart Cover accessory. Gianna Chien made the discovery as part of a science fair project that didn't win first place, but she will be presenting her findings to 8,000 doctors at a meeting of the Heart Rhythm Society in Denver, reports Bloomberg. The research offers a valuable warning for people with implanted defibrillators
