How a Chinese Company 3D-Printed Ten Houses In a Single Day

This month, architects in Amsterdam started work on the world's first completely 3D-printed house. It'll take three years and quite a bit of money to finish. Meanwhile, in Shanghai, a company claims to have printed ten houses with inexpensive industrial scraps in less than a day. What's the difference? » 4/03/14 2:00pm 4/03/14 2:00pm