Artificial intelligence Watch this team of drones 3D-print a tower The new technique, inspired by nature, involves multiple drones working together to build from a single blueprint.

The tower's construction pushes the boundaries of digital fabrication, using thin-walled, material-efficient 3D-printed concrete, a breakthrough that could reshape sustainable architecture.

“3D printing has revolutionized manufacturing, but we’re not aware of previous technologies that allowed you to print 3D metal objects at room temperature in a single step,” says NC State ...