(BBC News) Cube-shaped robots that can flip, jump and assemble themselves into different shapes have been unveiled by scientists at the Massachusetts Institute of Technology (MIT).
The small robots, known as M-Blocks, have no external parts but can move using an internal flywheel mechanism.
They stick together using magnets.
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The scientists envisage miniaturised "swarmbot" versions self-assembling like the "liquid steel" androids in the Terminator films.