Building with 3D printers has matured rapidly in recent years, as advances in technology and materials science have allowed for larger-scale and more ambitious designs. The potential applications have also become increasingly diverse, from affordable housing to a planned NASA base on the moon. Most 3D-printed structures are built with concrete or other pourable, cement-like … Read more
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Rammed earth sections of the Great Wall of China – built by compressing natural materials with earth – are considered a weak point in its structure. But these parts of the iconic landmark developed a … Read more
Sign up for CNN’s Wonder Theory science newsletter. Explore the universe with news about fascinating discoveries, scientific developments and more. Rammed earth sections of the Great Wall of China – built by compressing natural materials with earth – are considered a weak point in its structure. But these parts of the iconic landmark developed a … Read more