S13 · E12
Emergency Bridges, Marker Pens
How do they build emergency bridges that can take the weight of a tank, make a marker pen that never fades, and design a 200-mph superbike?

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S13 · E12
How do they build emergency bridges that can take the weight of a tank, make a marker pen that never fades, and design a 200-mph superbike?

S13 · E05
Sep 5, 2016 · 22m