Replica of the Trevithick locomotive under steam:

http://www.flickr.com/photos/robroy/162577268/

I've got to admit that I never heard of this locomotive, or its replica. Apparently there is some controversy of the claim that this was the "first locomotive", but nevertheless, it's an interesting machine. Must be something to actually see in motion.

Les

And I have an audio recording of it in action, to boot. (The replica, not the original.)