Before GitHub and IDEs, Margaret Hamilton led NASA's software team for the Apollo missions and wrote by hand the flight code that guided Apollo 11 to the Moon. During the descent, her software detected a critical error and saved the mission. The stack of papers beside her is the actual handwritten code. Could you write mission-critical software by hand today? For more content like this, please visit: https://t.co/EnvlpS8oSs #engineeringhistory# #apollo11# #womenintech# #spaceexploration# #margarethamilton# #moonlanding# #codelegacy#