So You Need To

So you need to land a jet on a ship. Dig a tunnel under a city. Lift a ship over a hill. Keep a skyscraper standing in the wind.

How would you actually do it?

Every video starts with a problem, then builds the solution one step at a time: the first fix, the problem it causes, the next fix, until you've built the real thing. Dams, bridges, engines, elevators, submarines and everyday machines, shown as 3D cutaways so you can see inside.

Short, fast, and fact-checked. Sources for every video are linked in its description.

New videos every week.

www.soyouneedto.com