This ‘robot’ doesn’t need a power source to move around
 

https://c.slashgear.com/wp-content/u...er-680x307.jpgResearchers have managed to create a sort of ‘robot’ that can move without requiring a power source, instead gaining its mobility skills via increased humidity levels. This was accomplished using a sheet of graphene oxide cut into a vaguely insect-like shape, including four legs. After exposing the graphene oxide sheet to a flash of bright light, researchers found that it … Continue readinghttp://feeds.feedburner.com/~r/slashgear/~4/0_FqRrzES_4

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