Egyptian researcher Nada Zien Eldin has patented an organic substance to kill termites, which have been causing damage at archaeological sites.
The story begins in 2019, when Zien Eldin visited the 12th-century Islamic city of el-Qasr in Dakhla Oasis in New Valley in the southwestern part of Egypt. She found that a lot of the wood in homes and buildings there was damaged. When she asked the tour guide what had caused this problem, he told her termites. His answer was a turning point in Zien Eldin's life.
