17th St Feb 2008: Cyclone at Treat Street

I'd been reading the book Infrastructure, a Field Guide to the Industrial Landscape and thus I knew that this metal funneloid was a cyclone. A workshop that generates a lot of sawdust can blow its dusty air into a cyclone on the roof. The air swirls about, slows down. The dust settles down, so you can clean it out; the clean air escapes.

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