Catalytic converters are simple, but getting them to work is not
29
votes
Showing only topics with the tag "metals.precious".
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This 200-year-old lighter ignites without a spark
27 votes -
Gold is back — and it has a message for us
6 votes -
The lone prospectors keeping the legacy of the gold rush alive
12 votes -
Egyptians are buying and selling gold just to stay afloat
9 votes -
About that Idris Elba gold documentary
21 votes -
The Gold Rush returns to California
4 votes -
Free Geek Twin Cities: E-Waste and education
5 votes -
Environmental impact of Bitcoin much worse than gold
7 votes -
Virus sparks round-the-clock rush to fill US gold vaults
4 votes -
How precious metals sellers psychologically manipulate elderly conservatives
10 votes -
Why palladium is suddenly a more precious metal
4 votes -
La Pampa: The illegal mining city Peru wants wiped out
11 votes -
Searching for gold (illegally) in South Africa's abandoned mines
10 votes