- Archimedean solid (Wikipedia)
In geometry, an Archimedean solid is one of 13 convex polyhedra whose faces are regular polygons and whose vertices are all symmetric to each other. They were first enumerated by Archimedes. They belong to the class of convex uniform polyhedra, the convex polyhedra with regular faces and symmetric vertices, which is divided into the Archimedean solids, the five Platonic solids (each with only one type of polygon face), and the two infinite families of prisms and antiprisms. The pseudorhombicuboctahedron is an extra polyhedron with regular faces and congruent vertices, but it is not generally counted as an Archimedean solid because it is not vertex-transitive. An even larger class than the convex uniform polyhedra is the Johnson solids, whose regular polygonal faces do not need to meet in identical vertices.
- White Rose (Wikipedia)
The White Rose (German: Weiße Rose, pronounced [ˈvaɪ̯sə ˈʁoːzə]) was a non-violent, intellectual resistance group in Nazi Germany which was led by five students and one professor at the University of Munich: Willi Graf, Kurt Huber, Christoph Probst, Alexander Schmorell, Hans Scholl and Sophie Scholl. The group conducted an anonymous leaflet and graffiti campaign that called for active opposition to the Nazi regime. Their activities started in Munich on 27 June 1942; they ended with the arrest of the core group by the Gestapo on 18 February 1943. They, as well as other members and supporters of the group who carried on distributing the pamphlets, faced show trials by the Nazi People’s Court (Volksgerichtshof); many of them were imprisoned and executed.