Watch a Möbius strip robot move and climb when hit by light 💡⭕️ A möbius strip – a one-sided surface that results from a band with a twist in it – or a similar curved surface called a Seifert ribbon. Zi Liang Wu at Zhejiang University in China and his colleagues created a soft robot shaped like a Möbius strip by stacking the hydrogel sheets on top of each other and secured gold nanoparticles on them. The robot can move when activated by light, and could be used to transport medicine and collect