nuclear fission

Chicago Pile-1 achieved the first controlled nuclear chain reaction. This guide explains the graphite, uranium, control rods, and risk.

The Manhattan Project combined nuclear physics, engineering, secrecy, and wartime urgency. This article explains the science without glorifying the weapon.

Lise Meitner co-explained nuclear fission while her collaborator got the Nobel. She fled Nazi Germany with 10 marks and refused to work on the Manhattan Project. Her biography.

How nuclear fission splits uranium to release 200 MeV per atom: the 1938 discovery, chain reactions, reactor physics, waste, accidents and 2026 debate.