Ever watch one of those old westerns, where the train pulls up to the same station they use in every one?
That’s a steam engine, and all that steam the are letting out is the built up pressure that drives the machine. When it comes to a stop, they need to blow it off so that the engine does not blow up.
Ever watch one of those old westerns, where the train pulls up to the same station they use in every one?
That’s a steam engine, and all that steam the are letting out is the built up pressure that drives the machine. When it comes to a stop, they need to blow it off so that the engine does not blow up.
Get it?