Trains

I have some questions about trains that I wanted to find out about!

Do you know about rails?  Fish belly rails were designed with cast iron for extra strength, but they failed.  The rail is a nice type, but it is not a good rail.    Britain type rails were used a long time starting in 1850.  At one point, they were worldwide, but they are not used anymore.

Mail trains are trains that have metal sticking out with netting.  When the train comes, it catches the mail on poles.

Another kind of train is the Rocket.  It was fast but deadly.

It is so hard to know all the parts of the train.