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South Africans make bricks from human urine
JAY GORY, MANAGING EDITOR, science
The grey bricks are produced in a lab over eight days using urine, calcium, sand and bacteria. The bricks are made using urea -- a chemical found naturally in urine and also synthesized around the world to make fertilizer. The process of growing bricks from urea has been tested in the United States with synthetic solutions, but the new brick uses real human urine for the first time, the researchers said. read more


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