Interesting Engineering on MSN
Chinese scientists recover 98% of gold from old phones in 20 minutes at low cost
The novel technique, that can extract gold from discarded electronics in under 20 minutes at room temperature was developed ...
In the Philippines, as in many places across the globe, mercury has long been central to how small-scale gold miners earn their living. Used as an easy way to separate gold from other minerals they ...
If you liked this story, share it with other people. The mercury used to amalgamate gold is cheap, effective and toxic. Studies from artisanal and small-scale mining sites across the Amazon reveal ...
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