Urine and the Romans The re-usability of urine was discovered early on. The Romans, for example, traded in urine and sold it to the leather industry, where it was used to soften leather and remove hairs. Urine was not only used in the leather industry but in the entire clothing industry. Urine was used to...
Mind your Ps: Amsterdam installs plant pot street urinals to improve toilet manners Mind your Ps: Amsterdam installs plant pot street urinals to improve toilet manners It erodes historic walls, creates a stench and may even lead to the deaths of several young men a year, who try to use a canal late at night....
The mineral phosphate is indispensable for the growth of plants and therefore important for the agricultural industry. However, the main mining areas in China and Morocco are slowly being depleted. Phosphate reserves will dwindle in the near future. It is therefore important to think ahead about other ways of producing phosphates. One of the possibilities...
