We might not be able to build a liquid metal T-1000 killing machine yet, but we just took a huge step towards building a plastic one. Scientists have managed to develop a new polymer that — when cut in half — can heal all by itself. Pretty awesome trick.
Researchers have been taking inspiration from X-Men: they’ve developed a way to create printed circuits that can heal themselves using liquid metal. The best bit is that, unlike X-Men, this is real.