All, Art, Environment, Justice, Urban Nut Brother vacuumed up smog in China for 3 months & then made a brick out of it December 4, 2015 Kimi Leave a comment Day 83, cloudy, Limin Hutong. (Source: Quartz/Supplied by Nut Brother)Chinese artist Nut Brother travelled on foot throughout Beijing China for 100 days vacuuming up smog for 100 days. Then he mixed the smog with clay and made a brick out of it.