New article on Inoreader

http://www.youtube.com/user/newscientistvideo4D-printed robot self-assembles into a tube and rolls up hills -

A 3D-printed material rolls itself up into a tube, becoming a ‘4D-printed’ robot that travels up hills when exposed to heat.

Read more: https://www.newscientist.com/article/2291164-4d-printed-robot-self-assembles-into-a-tube-and-rolls-up-hills/