Robots may soon be equipped with muscles that develop considerable strength. The mechanical effort and weight are low because neither hydraulics nor electric motors are needed. The power comes from a new shape memory polymer developed by a team led by Zhenan Bao of Stanford University. This is reported by several media based on a press release from pressetext.com. ACS Central Science provides further information: “When stretched or deformed, shape memory polymers return to their original shapes after heat or light is applied. These materials show great promise for soft robotics, smart biomedical devices and deployable space structures, but until now they haven’t been able to store enough energy. Now, researchers reporting in ACS Central Science have developed a shape memory polymer that stores almost six times more energy than previous versions.” (ACS Central Science) Robots with muscles play an important role in the embodiment “movement”. It takes a lot of effort to build robots like Roboy. Perhaps the development of Stanford University will help in this area.