The Strongest Material Known to Man
Graphene is in incredibly strong, one-molecule thick layer of carbon atoms that could someday be used to create life-sustaining nanorobots.

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Every Wednesday, Michio Kaku will be answering reader questions about physics and futuristic science. If you have a question for Dr. Kaku, just post it in the comments section below and check back on Wednesdays to see if he answers it.
Today, Dr. Kaku addresses a question posed by Matthew Books: Will nanotechnology allow robots to swim around in our bodies, turning us into supermen?
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