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Why was Unobtanium so valuable?


Why was Unobtanium so valuable? It is a room-temperature superconductor for energy, which makes it very valuable; worth $20 million per kilogram (2.2 lbs) unrefined and $40 million per kilogram…

How is recycling clothes sustainable?


How is recycling clothes sustainable? Generally speaking, clothing that utilises recycled materials is a more eco-conscious option, simply because using existing resources means that the energy required to make new…