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Don’t have a playground nearby? No backyard? Not even a tree that you can attach a tire and rope to? Well, that’s downright sad, but dry those eyes. This door frame swing is here to help.
As you probably already know, GPS technology is pretty much useless once you’re inside of a building, so companies are working on ways to provide directional and navigational information while indoors. One very promising technology has been demonstrated by Japan’s National Institute of Advanced Industrial Science and Technology (AIST).