Engineering

First-of-its-kind 3D-printed home blends concrete, wood

Pouring layers of concrete like rows of toothpaste, an industrial-sized 3D printer this week continued adding a second floor to a Houston home that will be the first multistory printed structure in the United States.

Energy & Green Tech

Visualizing a city's energy use

The building sector in the U.S. accounts for 39 percent of energy use, with commercial buildings responsible for about half of that. As cities grapple with climate change, making commercial buildings more efficient is a key ...

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