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Graphene nano-ribbons can be grown directly on the surface of a semiconductor, but it's hard to control the ribbons growth, and at the same time, aligning them all in the same direction.

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If electromagnetic radiation could harm people, can the "ping" from ground stations cause the same to the passengers as well as the cabin crews?

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If I would like to venture into the research of bullet-proof vests. What would be the best possible materials to use?

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