How a Steam Locomotive Works (Union Pacific "Big Boy")
![](https://i.ytimg.com/vi/cIQ0yIZgQeE/mqdefault.jpg)
25:13
How a Diesel-Electric Locomotive Works
![](https://i.ytimg.com/vi/5YMAqqCYe00/mqdefault.jpg)
1:01:38
Union Pacific’s Big Boy Locomotive - World’s Largest and Most Powerful Steam Train
![](https://i.ytimg.com/vi/gkyVZxtsubM/mqdefault.jpg)
55:30
How the Lockheed SR-71 Blackbird Works
![](https://i.ytimg.com/vi/FctRpaleRFc/mqdefault.jpg)
30:52
How a World War Two Submarine Works
![](https://i.ytimg.com/vi/4Nr1AgIfajI/mqdefault.jpg)
25:27
How an 18th Century Sailing Warship Works (HMS Victory)
![](https://i.ytimg.com/vi/3pYqXrFx6S8/mqdefault.jpg)
41:08
How a 16th Century Explorer's Sailing Ship Works
![](https://i.ytimg.com/vi/1EsC0nzptRI/mqdefault.jpg)
13:05
The Reason Train Design Changed After 1948
![](https://i.ytimg.com/vi/Q0S4JagP8Tk/mqdefault.jpg)
16:04