The race for next generation submarines - ageing fleets, innovation, and undersea dominance
16
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The economic secret hidden in a tiny, discontinued pasta
46 votes -
How Japan's maglev train works
13 votes -
Philadelphia I-95 bridge collapse explained
11 votes -
The world’s longest suspension bridge is history in the making. After 2,000 years of political and technical hitches, Italy says it’s finally ready to connect Sicily to the mainland.
8 votes