By johan [dot] joelsson [at] science [dot] lu [dot] se (Johan Joelsson) - published 8 November 2019 At one point, 70 per cent nitric acid is poured on the sample, which dissolves the mineral pyrite. The brownish yellow smoke consisting of nitric oxides is both toxic and flammable. Photo:Kennet Ruona Every year Birger Schmitz, Fredrik Terfelt and Ellinor Martin dissolve five to ten tonnes of limest

https://www.staff.lu.se/article/chemically-empowered-hunt-space-grains - 2025-04-17

By ellen [dot] albertsdottir [at] fsi [dot] lu [dot] se (Ellen Albertsdóttir (English translation by Linda Eitrem Holmgren)) - published 13 November 2023 Israel left Gaza in 2005 but still controls the borders. According to international law expert Alberto Rinaldi, this could be seen as a continued occupation, which increases Israel's responsibility towards the civilian population of Gaza. Photo:

https://www.cmes.lu.se/article/suspected-war-crimes-israel-and-palestine - 2025-04-17