Worth Reading: Checklists

Thirty-six seconds after launch, lightning struck the Apollo 12 and its six million pounds of high explosive fuel. The instruments blacked out. Twenty-two seconds later lightning struck again. What few instruments remained started flashing red failure lights. The “you’re about to die” alarm started blaring. Over the radio the crew heard the voice of John Aaron: “Flight, try SCE to Aux.” Astronaut Alan Bean flipped the tiny switch immediately. —Jonathan Solórzano-Hamilton @ Free Code Camp