Quote (proccy @ Sep 30 2019 10:01pm)
Oh look... same graph (see black circle)...
/e
I grew up in and around Pittsburgh, PA. The pollution from the steel mills was horrendous. Sometime in the 60's I think, someone invented the precipitron.
The precipitron was a device that was mounted on the smoke stacks of the steel mills. They put a positive charge on the pollutants, and a negative charge on a grid the pollutants had to pass through.
Unlike charges attract, so the precipitron removed the pollutants from the smoke stack emissions. For some reason they collected all this particulate pollution into huge piles.
One day... some bright young lad decided to figure out a way to USE those huge piles of particulate matter. After much R&D they decided to make asphalt out of these piles of particulate matter.
Now the city wasn't ready to chance using this asphalt all over the place, so they decided to make ONE road out of this stuff. 60 years later and that road (Lime Hollow Road), still doesn't have any pot holes in one of the pot hole capitals of the US.
Pretty neat.
This post was edited by Ghot on Sep 30 2019 08:18pm