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Prosper, in London, is developing Alfie – a robot butler who could, it claims, “cook breakfast, clean your office, make your bed, and more”. Engineered Arts in Cornwall has a lifelike humanoid robot ...

and so they’re great model organisms for a tissue engineered robot. The body is a laminate of silicone rubber and a collection of 200,000 rat heart muscle cells. The cardiomyocytes provide the ...