Transportation

American Airlines plans to buy 20 supersonic planes
MIT’s new algorithm for self-driving cars is open-source 
Flying sports car cleared for takeoff by FAA
15th century futurism: Leonardo da Vinci’s famous helicopter design finally takes flight
You can ride this “flying” electric ferry in 2023 
Electric “seagliders” may soon skim the Hawaiian shoreline
This luxury solar electric car could go 7 months without recharging
$26K solar car now has a factory
Hyundai’s autonomous ship is the first to make a transoceanic journey