10:11 I used to work on the waterfront. Our office was about 100m from the berths and, 50m from the coal dust. There was always black dust over everything. Even if you couldn't really see it, you could feel it. If you washed only one side of your face, you could easily see the difference. The inside of your shirt collars were always black. Edit: I should point out that, that was inside the office. Outside, it was pretty much like it is in this video.
Unas de las imágenes más impresionantes de la industria es la de las grandes fundiciones no son lo más tecnológico y ya tienen sus años pero nunca dejan de impresionar !!