- 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.
- Reverse engineering the ARM1, ancestor of the iPhone’s processor (righto.com)
Almost every smartphone uses a processor based on the ARM1 chip created in 1985. The Visual ARM1 simulator shows what happens inside the ARM1 chip as it runs; the result (below) is fascinating but mysterious. In this article, I reverse engineer key parts of the chip and explain how they work, bridging the gap between the puzzling flashing lines in the simulator and what the chip is actually doing. I describe the overall structure of the chip and then descend to the individual transistors, showing how they are built out of silicon and work together to store and process data. After reading this article, you can look at the chip’s circuits and understand the data they store.