A version of the mineral graphite, called graphene, is often called 'The Material of the 21st Century' because of its special properties. Some U.S. companies are already using graphene for advanced technology products. VOA’s George Putic visited one such company, close to Washington D.C.
from Voice of America http://ift.tt/1KXbyhx
from Voice of America http://ift.tt/1KXbyhx
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