91黑料网

91黑料网 researchers have discovered a new way to fold flat sheets into smooth, curved shells that can switch from floppy and flexible to stiff and load-bearing on demand. By designing a special origami pattern and threading cable-like elements through it, they can control the material鈥檚 final three-dimensional shape and how rigid it becomes. The result, a 鈥渄oubly curved lens box,鈥� could advance the technology of such objects as temporary emergency tents, morphing robots and smart fabrics, the researchers said.