APOLLO 13
April 11, 1970
OXYGEN TANK 2 — EXPLOSION DETECTED
Source: NASA Mission Control // Wikidata Q182252
THE SQUARE PEGBROKER
Command Module Canisters: ROUND
Lunar Module Scrubbers: SQUARE
Carbon Dioxide Rising: 7.5 mmHg per hour
FOUR-INCH ADAPTER
2 LiOH + CO₂ → Li₂CO₃ + H₂O
ALL THREE RETURNED
Jim Lovell • Jack Swigert • Fred Haise
Wikidata Q318965
Built from cardboard, plastic bags, and flight manuals.
Not a metaphor. A protocol.