Hackers' Pub

Syntax	Description	Examples
`"` keyword `"`	Finds the string within quotes, including spaces. Case-insensitive. (Escape quotes inside with `\"`)	`"Hackers' Pub"`
`from:` handle	Finds content written by the specified user.	`from:hongminhee` `from:hongminhee@hollo.social`
`lang:` ISO 639-1	Finds content written in the specified language.	`lang:en`
`#` tag	Finds content with the specified tag. Case-insensitive.	`#HackersPub`
condition condition	Finds content that satisfies both conditions on either side of the space (logical AND).	`"Hackers' Pub" lang:en`
condition `OR` condition	Finds content that satisfies at least one of the conditions on either side of the OR operator (logical OR).	`#HackersPub OR "Hackers' Pub" lang:en`
`(` condition `)`	Combines the operators within the parentheses first.	`(#HackersPub OR "Hackers' Pub" OR "Hackers Pub") lang:en`

AkaSci 🛰️ @AkaSci@fosstodon.org

11/15/2025, 12:00:53 PM

Public

"SCE to AUX" the famous words said by EECOM engineer John Aaron that saved the Apollo 12 mission.

On Nov 14, 1969, Apollo 12 was struck by lightning twice in the 1st minute after launch, causing a major power outage in the spacecraft. All 3 fuel cells got disconnected from the power bus; the inertial navigation system went awry.

Switching the Signal Conditioning Equipment to auxiliary power restored telemetry to mission control and to computing equipment.

https://www.nasa.gov/history/afj/ap12fj/a12-lightningstrike.html
1/n

1. Diagram of Panel 3 on the Main Display Console. SCE switch is circled.
2. Pic of bottom of panel 3 with the SCE power switch.
3. EECOM engineer John Aaron in Mission Control. Photo from NASA History Office.

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