Now concrete is getting smart, too: it can report traffic flow, record the speed and weight of traveling vehicles, monitor its own structural health, and detect cracks.
A D-series supersonic jet from MIT (MIT/Aurora Flight Sciences)
In the next three decades, air traffic is predicted to double, which will require a lot of fuel and potentially increase harmful emissions.
To combat this, NASA challenged six different research groups to radically redesign the passenger aircraft in order to increase fuel efficiency, lower emissions, and allow planes to take off on shorter runways.