Tokyo's subway system
8
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The new $45 billion metro system under construction beneath Paris
12 votes -
Porsche found a way to 3D-print lightweight pistons that add even more horsepower
6 votes -
US Federal Aviation Administration engineers objected to Boeing’s removal of some 787 lightning protection measures
5 votes -
Crash course: How Boeing's managerial revolution created the 737 Max disaster
12 votes -
Ode to the 767
10 votes