- Christoph Ananda Probst (6 November 1919 – 22 February 1943) was a German student of medicine and member of the White Rose (Weiße Rose) resistance group.
- A circuit board from the Saturn V rocket, reverse-engineered and explained (righto.com)
In the Apollo Moon missions, the Saturn V rocket was guided by an advanced onboard computer system built by IBM. This system was built from hybrid modules, similar to integrated circuits but containing individual components. I reverse-engineered a circuit board from this system and determined its function: Inside the computer’s I/O unit, the board selected different data sources for the computer.