This week: Helping the blind to see with “Smart Glasses”, 3D printing an entire home in under 24 hours, disease fighting GMO tomatoes, a drone that can navigate an obstacle course at high speeds, and a town that’s averaged an earthquake an hour for two weeks. Smart Glasses Translate Video into Sound To Help The Blind Blind people have long relied on sound as a substitution for sight, and some even use echolocation to navigate around objects. But it turns out that sound can be