Apollo 14 almost never made it to the lunar surface thanks to a hardware failure which caused a short circuit in the abort switch. With the computer seeing the abort switch enabled the software team back on earth had a limited amount of time to figure out how to make the computer ignore the erroneous signal while still performing the landing. This required tweaking program state in memory while the program was running, a delicate operation with dire consequences for failure. No pressure guys.
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I worked in I.T. for 35 years. Whenever we had serious computer issues, I could never help but think "well at least we're not in Space."
Should've tried rice.
These days tech support will say "Have you tried turning it on and off again?"
"Houston we have a problem"
Indian voice "Hello sir my name is Rajesh how may I help you today?"
MAN I love this damn channel
What a kludge. Could you imagine them taking the time implementing a software change like this on the Boeing 737 MAX – they would still be in orbit around the moon today.
An Okker astronaut. To right mate. Good on ya. I lived through these days of moon missions . There was always a feeling that despite all the tech they were basically flying by the seat of their pants. These videos show just how much risk of the unknown they were unprepared for there was. For example I recall on a Gemini two man mission in Earth orbit a rocket stuck on or something that sent the capsule spinning and tumbling and plummeting back into the atmosphere. Neil Armstrong was on that flight and despite the stomach turning disorientating g forces was able to regain control seconds before disaster. Same on first moon landing he over rode the computer that overshot the initial landing site and bringing them down into a field of SUV sized boulders. He landed the LEM with 15 seconds of fuel left. Truly hair raising adventure people especially men today have no idea about. Even on John Glenn’s first trip into orbit they thought for some time the heat shield had slipped making re entry impossible without burning up. They kept the third stage rocket housing they would normally jettison before re entry attached as it was the only thing keeping the heat shield in place. Watching this stuff on TV as it happened was nerve wracking as say the LEM on Apollo 11 was only feet above the lunar surface they were searching for a clear spot to land as Aldrin was counting of the seconds of fuel left for Armstrong as he concentrated on finding a spot or jettisoning the landing stage and firing ascent engine. All this with a ship’s computer with less power than my iPhone. Now that’s adventure but I’d never be able to do it. Finding a parking spot is challenging to me.
Just unplugging the faulty switch was not an option?
Assembly language code and green bar. 👍
That engineer saved apollo 14 but I bet you even he couldn't set the clock on his VCR when they came out. It wasn't humanly possible.
Celebrity immediately descended upon Eyles. Reporters from newspapers and radio stations called him incessantly. The presidents of both Boston University and M.I.T. sent letters of congratulations. The Boston City Council summoned him to City Hall. “There were 10-minute handshakes with all these politicians who I expected not to like but turned out to like in a way,” says Eyles. “They passed a resolution with a lot of whereases and things in my honor. I was introduced to Monsignor somebody-or-other. I was stoned out of my mind.”
1:39 WOW that guy looks like fuckin Captain Jack Sparrow!!
1:43 oh okay maybe not from that angle xD
I love Scott Manley but i can never get over those infernal "CHwHHHHat"s 0:34
Those spoken H's really kill me. I dont know why. I'm not a language or grammar nazi.
It just does something subconciously to me, it destroys me.
You destroy me, Scott. You dont realize the power you possess.. xD
Having a Linux user on Apollo 14 would have been disastrous. On the upside they'd have felt right at home during this crisis, but on the downside, our only historical record of this event would have been a forum post describing the issue with a follow-up post saying they fixed it but without saying how
IBM 360 DB (1) Still used on almost all major Server Farms as DB2. I have DEC: VAX750m VAX 730, PDP 11-34, Digidata tape drives, Software!, Control Data Hard Drive, spares, APLICON AGS 895 Complete System, Spares Larry LEHenson@@t 704 470 9020
How did the computer use the 16th bit to check the data??
Idk… I think the "SCE to AUX" one was better
And YOu think this calculator was controlling the ship 🙂
You Trekies are all so hilarious!
Do yall believe in dinosaurs too?🤡
Doing this emergency mode shit as a job really burns you out. It's a lot of fun, but don't stay too long folks.
Visualizadores de 7 segmentos de color verde en 1969 ????
🤣🤣🤣🤣🤣
I was wondering how they could handle an actual abort situation after disabling all the abort modes, fooling the program by setting flags all over the place – forgot about the secondary abort computer !
Question is : What is known about the secondary abort system ? Was it from a different manufacturer and with a different program team and completely different design who weren't allowed to communicate with one another to prevent design errors to seep through?
I'm thinking of the STS avionics (GPC) which were basically a modified S/360 designed by IBM – but they still had a Motorola backup (probably a 6809 or maybe a 68000) for a last ditch attempt – just in case the original entire avionics systems had a catastrophic failure.
Don is my idol for this. This hack makes every work-around I've ever done pale into insignificance.
Great explaination!!
One fact that always continues to amaze me about the Apollo missions is just how at the mercy of the guidance computers the astronauts were on the mission. Completely new technology, made by the brightest minds on earth certainly however still very new and untested in a lot of ways. The computers were responsible for handling so many aspects of the flight. There were redundancies yes but if the computer crashed or failed in some manner during one of the critical phases of the mission, in which there were many critical phases, the mission(and crew) may have been lost. Apollo 13 lucked out because they had the guidance computer from the LEM, even though they had to power it down often to conserve energy. They had it for some of the burns they needed to do(it was off during the famous manual burn though), and they had enough power to have the one running in the command module during re-entry.
"I'm the technician that will be helping you today… have you tried turning off and back on again?"
"Houston, we have a computer problem here"
"I'll be glad to assist you today, can I first get your 6-digit customer code?"
"Our lunar lander might abort!"
"I understand, can you please verify your phone number?"
"The abort switch keeps flickering!"
"Absolutely, what is your user name?"
"(sigh) Antares"
"Okay, I have A as in apple, N as in neck, T as in table, A as in apple, R as in rabbit, E as in extra, and S as in salad…the user name is Antares, correct?"
"Yes, now we've got to fix our computer immediately!"
"We can help you, can you give me the 23 digit key that came with your computer to verify license?"
"The entire mission up here is in jeopardy!!!"
"Before we get started, can you please confirm your email?"
My Pop was the only Marine on the ship that picked up the Apollo 14. I have the home movies. Thank you.
YEA, SURE, I WILL LISTEN TO A FOREIGNER TELL ME ABOUT OUR SPACE PROGRAM….NOT !!! WHAT A JOKE.
well that is a real tec support call, not the normal nonsence we can fix with the automatic fixes of restarting the computer