A group of BYU engineering students has unveiled a merry-go-round capable of turning children's play into electricity. The prototype uses a direct current generator system to turn the energy from kids into electricity that can light schoolhouses in remote Africa, like rural Ghana. The project is called "Empower Playground" and constructed from a lot of old car parts that can be found in a junkyard. One of the students said, "The project also promotes sustainable development because it is more than just lighting a schoolhouse, it is providing self-sustained education to these people so they can be engineers and entrepreneurs themselves." This is definitely a clever, sound idea...and it rang true for my wife, Lori, and me. She has long had the idea of creating a workout facility or "Green Gym" that is totally self-sustaining based on the energy that is created and harnessed by lifting weights, riding bikes, and running on the treadmill. Anyone who is interested in pursuing this idea a little further, make a comment or shoot me an email.