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Though we may be a while away from the ability to make the all important material, we could in fact start working towards this now. A while ago I penned a small idea for building 2 elevators, the first of which would be a "Lunar Elevator". With greatly reduced gravity, the tensile strength of the cable would be reduced to well within the art of the ...


Because without magnetic field, the chemical potential is at the Dirac point. In other words all the valence bands are occupied. The system is particle-hole symmetric. With an external magnetic field added, the energy levels are quantized into Landau levels(LLs). Hlaf of the zero-th LL comes from the original valence band and the other half from the original ...

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