Hope you get a chance to watch the trains through there for the next couple of days–and listen to them hummin’ along!
Last time I watched a grinder relatively close-up they were emitting a toxic-looking cloud of steel filings. I don’t think those protective covers catch everything!
And wouldn’t you love to see one of these at night?
The five links I posted are of picture/video of the things working at night/dusk. It is probably not the same as watching them in person but, close enough.