 It was in a physics laboratory there that, in 1890–91, Maria Skłodowska (Marie Curie), future investigator of radioactivity and future double Nobel laureate, did her first scientific work.In 1895 Hyppolite Wawelberg founded the Warsaw Mechanical-Technical School with his faithful friend and collaborator, Stanislav Rotwand (Cтанислав Ротванд, Stanisław Rotwand), an 1860 alumnus of the University of Saint Petersburg law school.Michael Wawelberg ("Михаил Ипполитович Вавельберг"; 1880 – after 1929) received a classical educational at the St. Nicholas Imperial Gymnasium in Tsarskoe Selo ("Царскосельская Императорская Николаевская гимназия"), from which he graduated in 1899.