4D-printed robot self-assembles into a tube and rolls up hills
https://www.newscientist.com/article/2291164-4d-printed-robot-self-assembles-into-a-tube-and-rolls-up-hills/?utm_campaign=RSS%7CNSNS&utm_source=NSNS&utm_medium=RSS&utm_content=home
4D-printed robot self-assembles into a tube and rolls up hills