1.
2.
Mining the deep ocean
(arstechnica.com)
3.
Gold and silver prices are tumbling again today: What’s happening with safe-haven assets?
(feeds.feedburner.com)
4.
Bistable superlattice switching in a quantum spin Hall insulator
(feeds.nature.com)
6.
Silver plunges 30% in worst day since 1980, gold tumbles
(news.ycombinator.com)
7.
8.
10.
12.
How to make metals from Martian dirt
(news.ycombinator.com)