| http://www.w3.org/ns/prov#value | - But wait, there???s more ??? graphene is the most impermeable material ever discovered ??? so neatly packed together, that not even helium atoms can squeeze through.Graphene, probably the most fascinating material discovered thus far, is capable of self-repair, as carbon atoms naturally attach themselves to free spots in the lattice, new study finds.Are you impressed yet?
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