It won’t be long before we do away with rotating electric motors in robots. There are much more practical designs to be used (muscle replicas), and scientists are pursuing these designs in what is an actual field of work: robotics. But one new invention may allow us to leap even further.
A team of scientists in China has obtained a liquid metal akin to mercury (but made from gallium, indium, and tin) which ‘eats’ aluminum to move. The process is slightly more complex than that, and it’s all explained in the embedded YouTube clip below.