zondag, 13:30 ![How Do They Do It? - Season 14](/img/united_kingdom/reviews/discovery_science/how_do_they_do_it_season_14.png)
How Do They Do It? - Season 14
Paddle Steamers
How do they build the steam-powered paddleboats that cruise the Mississippi River? And, how did they create the defence system called 'the waterwall'?