How nuclear weapons and nuclear materials are transported
7
votes
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Sweden's Northvolt says new lithium-free sodium-ion battery is cheaper, more sustainable and doesn't rely on scarce raw materials
49 votes -
Union Pacific still says a leak caused thirty tons of explosives ingredient ammonium nitrate to go missing
15 votes -
Should airships make a comeback?
25 votes -
As demand for electric vehicles soars, Stora Enso in Finland has hired engineers to look into the possibility of using lignin, a polymer found in trees, to make batteries
6 votes -
Are rubber-tired trains a scam?
2 votes -
Metallurgist admits faking steel-test results for Navy subs
10 votes -
Titanium: The metal that made the SR-71 possible
6 votes