kat

The tender is the bit that carries the coal and water (depending on the type of engine - I don't think there was a large incidence of tank engines that carried their own water in the US), while the engine itself is the bit with the fire and the boiler and all those good bits. The tender is usually dragged along behind the engine, but is coupled very closely to it to minimise problems of access for the enginemen.

What is "Stargate?" If it ever comes to Australia, I might have to watch it - which will only be if I remember to turn the TV on. That usually happens for football and the occasional old movie, or something really special like a Ken Burns series.