| Quipu: Inca Empire, Andes, Llama, Alpaca, Knot, Qusqu-Qullaw, Phonology, Logogram, Tribute, Wampum, Caral, Textile Год: 2010
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| Zone Melting: Bell Labs, Transistor, Germanium, Solvent, Solution, Seed Crystal, Magnetomotive Force, Induction Coil, Electric Heating, Solar Cell, Fractional Freezing, Wafer (electronics) Год: 2010
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