We wrote about the LowLine park concept a couple months back, but at the time it was just a crazy design for a futuristic underground public space in Manhattan's Lower East Side. Now, it's on Kickstarter, and the project's creators are making some serious headway in actually getting construction moving. They're asking for $100,000 to build and display a working demo to show that their blend of solar tech and natural sunlight could actually make an appealing park below street level. Check out the project over at Kickstarter.
Five amazing, clean technologies that will set us free, in this month's energy-focused issue. Also: how to build a better bomb detector, the robotic toys that are raising your children, a human catapult, the world's smallest arcade, and much more.