How did NASA Steer the Saturn V?- Smarter Every Day 223

  • Published: 08 August 2019
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    Behind the Scenes:

    View Linus's video:


    Functional Requirements for the Launch Vechile Digital Computer

    Launch Vehicle Digital Computer

    Dr. von Braun (seated) examining a Saturn computer in the Astrionics Laboratory at the Marshall Space Flight Center

    U.S. Space & Rocket Center,_Alabama

    IBM's page on the Saturn Guidance Computer

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Comments • 4 667

  • SmarterEveryDay
    SmarterEveryDay   4 months back

    I would like to point out several things:
    1. Luke Talley is awesome.
    2. Every single frame of this video requires more memory storage than this memory module is capable of handling. Think about that.
    3. On the second channel we talk about things like how they took into account gyroscopic precession with this bad boy. They also crashed this into the moon and used the signal as a way to figure out what the inside of the moon is like. It's a good video, you should consider watching it. ( )
    4. This is not the Apollo computer. This is the Saturn V computer. They're different. This steered the rocket.
    5. People that support Smarter Every Day on Patreon are really cool and I like them a lot. ( )

    • GodsBoom
      GodsBoom  2 days back

      tiny thing: about the salt audiobook, the garum you mentioned is essentially salted fish paste that was "cured" and transported in big amphoras, it would preserve itself very nicely. It also existed before the romans, as far as i know the phoenicians brought it to west southern europe from the middle east around the 8th and 6th century b.C.
      A future archaeologist.

    • Crusifix Jesus
      Crusifix Jesus  2 months back

      i try

    • StrangeCalibur
      StrangeCalibur  2 months back

      Wait, theres a second channel?!!!!!

    • John Kiltoff
      John Kiltoff  3 months back

      Rishi Ramraj m

  • Ethan Manzi
    Ethan Manzi  2 hours back

    That's what I find amazing about old technology. It's hard to understand these kinds of things, but it is so much easier looking at old tech. When somebody says memory stores data, you get a general idea, but seeing physically woven magnets to act as data storage makes it really amazing. It's also why if you are interested in computers and how they work on a physical level, one way to get a general idea is watch Minecraft Redstone builds of ALUs, CPUs, etc. Closest thing you can get to working on the transistor level without being rich, haha.

    • KingKoopa
      KingKoopa  3 hours back

      I like Linus when he is more quiet. :)

      • azlaaanFN
        azlaaanFN  3 hours back

        Linus holding that gives me anxiety.

        • goober
          goober  8 hours back

          Linus and that dam hoodie...

          • Blitz
            Blitz  9 hours back

            Turns out Luke is a time traveller and has been working for Linus as a younger version of himself for a few years.

            • Amr Koptan
              Amr Koptan  17 hours back

              That's a great video, I recall "Curious Marc" had his mates trying to get the Apollo computer to work, they had issues with the core memory but they worked through it, so far they've made 26, parts it's so interesting

              • Mauri Cobian
                Mauri Cobian  19 hours back

                You should've had LGR talk to that man! He There would've been a dozen custodians armed with mops ready to go.

                • FuzzyDragon Cosplay
                  FuzzyDragon Cosplay  19 hours back

                  As close to the space and rocket center as I work, I really should go up there one day to go through the newer building.

                  • sasha wood
                    sasha wood  20 hours back

                    can it run doom?

                    • Nathaniel Ricker
                      Nathaniel Ricker  22 hours back

                      Read Salt, it is the best.

                      • linkuei83
                        linkuei83  23 hours back

                        Who downvoted this?

                        • John
                          John  1 days back

                          When you see this you start to understand how Nasa can say they lost the technology to return to the moon. They're really saying we'd have to invent this all over again...

                          • Veselin Krastanov
                            Veselin Krastanov  1 days back

                            so the sad truth is that they didn't have to rush out competitor countries to the moon and wait a few centuries to develop a decent computer that would allow them to go even further than the moon? Oh man that human-ish pride is just causing headaches and serves noone any good.

                            • midnightrider
                              midnightrider  1 days back

                              can it run minecraft?

                              • __Mort3012__
                                __Mort3012__  1 days back

                                Garum being made today as Fish sauce?

                                • Nāc Ēst!
                                  Nāc Ēst!  1 days back

                                  0:59 - never do that, he will drop it!

                                  • xaero76
                                    xaero76  2 days back

                                    When some one asks... "How can you forget how to get to the moon?!?!".... this is how.... so, fewer and fewer people are around that built the rockets and computers that sent man to the moon, tech has been lost and or cannot be made anymore since it is obsolete and on top of that many of the notes, adjustments and field modifications that were made are also lost to time and history..... so yes, it is possible how to forget to do something like getting to the moon..... so, these days you have to start from scratch

                                    • Maurits Winkens
                                      Maurits Winkens  2 days back

                                      SWEEEET HOME ALEBAMA

                                      • william Ribeiro
                                        william Ribeiro  2 days back

                                        NASA's dun goofed. They could just strap some RGB leds on that memory module to instantly get triple performance.

                                        • Gunther Schadow
                                          Gunther Schadow  2 days back

                                          No, they didn't program the computer by threading the cores. That's B/S. It's RAM! But its totally static. So even after years turned off, the data is still there. I used to have a PDP-8/A and I found my program in the core memory after many years. You might be able to actually read what you have in your hand here.

                                          • Rick
                                            Rick  3 days back

                                            That is probably why you'll never meet a computer scientist from back then that doesn't work glasses.

                                            • Rick
                                              Rick  3 days back

                                              The Navy was still using core memory in its air traffic control systems in the early 90s. I was electronics tech back then and I knew the AN/TPX-42. It had 64 kilobytes of core memory. My home computer back then had more memory.

                                              • Bill Rayvan
                                                Bill Rayvan  3 days back

                                                Imagine believe the propaganda used against USSR ...

                                                • Reona sabskrep
                                                  Reona sabskrep  3 days back

                                                  Linus daily dose of trip. . .

                                                  • Jake B
                                                    Jake B  4 days back

                                                    I tried to watch one of linus’ videos but it just made me feel incredibly stupid. He might as well have been speaking a different language.

                                                    • Ian Shoults
                                                      Ian Shoults  4 days back

                                                      Ok boomer

                                                      • Mourisyo TV
                                                        Mourisyo TV  5 days back

                                                        crazy amazing

                                                        • Robbie Goldman
                                                          Robbie Goldman  5 days back

                                                          Linus, the heck are you doin here ?

                                                          • just teme
                                                            just teme  5 days back

                                                            really fun and informative video thank you for making it!!!!!!!!!!!!!!!!!!!!!!

                                                            • BLACKLIGHT
                                                              BLACKLIGHT  5 days back

                                                              This always be mind blowing to watch..

                                                              • king james488
                                                                king james488  5 days back

                                                                when debugging a computer literally meant picking bugs out of a cabinet the size of a car...

                                                                • Jared
                                                                  Jared  6 days back

                                                                  Don't stop ending with scripture

                                                                  • Hayden Beddow
                                                                    Hayden Beddow  6 days back


                                                                    • Submersed24
                                                                      Submersed24  6 days back

                                                                      There needs to be more linus and Smarter every day... its like when jimmy neutron and timmy turner had that joint episode.

                                                                      • H2Dwoat
                                                                        H2Dwoat  6 days back

                                                                        Hi, I remember when I was a child having a Casio calculator watch. I had a teacher tell me that it had many times the memory and I think computing power of the computer that took space ships to the moon. I can remember trying to imagine how that could be, now I understand 🤓.

                                                                        • Jayant Rao
                                                                          Jayant Rao  6 days back

                                                                          well thats a scientisst

                                                                          • GlaDi02
                                                                            GlaDi02  1 weeks back

                                                                            Linus just realized that he and all "nerds" these days, are not nerds at all.

                                                                            • One Life
                                                                              One Life  1 weeks back

                                                                              He talks like an american from ww2.I LOVE OLD PEOPLE.

                                                                              • HolzstockG
                                                                                HolzstockG  1 weeks back

                                                                                I would like to be a close friend to Luke to get all the knowledge he has <3

                                                                                • diddlydankmemes
                                                                                  diddlydankmemes  1 weeks back

                                                                                  uses a SSD

                                                                                  • John McVey
                                                                                    John McVey  1 weeks back

                                                                                    This video showed us how computers were put together in the 60's, but it never explained how the data was delivered to the programmer and it never answered the question that is in the title of the video, how did NASA steer the Saturn V? A car driver uses his inbuilt human perspective to determine the speed of the car and looking ahead determines the direction he wishes the car to take, so he turns the steering wheels which turn the car wheels to take the car in the appropriate direction. So what components were used to change the direction of the rocket and how did the rocket get thrust while moving in a vacuum?

                                                                                    • Dark Matter
                                                                                      Dark Matter  1 weeks back

                                                                                      So, I guess my only questions would be:
                                                                                      a) What kind of over-clocks did NASA achieve on that thing... &

                                                                                      b) Undoubtedly most important... could it run Crysis

                                                                                      • Saar Z
                                                                                        Saar Z  1 weeks back

                                                                                        It didn't steer it because because the moon landing was staged

                                                                                        • Trev0r98
                                                                                          Trev0r98  1 weeks back

                                                                                          This whole video could have been made even better, were it not for the presence of the smirking, coy and elitist Linus Sebastian.

                                                                                          • Mohammad M
                                                                                            Mohammad M  1 weeks back

                                                                                            I wish there was a dislike button for advertisements.

                                                                                            • Coleção Nintendo
                                                                                              Coleção Nintendo  1 weeks back

                                                                                              Dome, earth plane, ah stupid peoples!

                                                                                              • lib xo
                                                                                                lib xo  1 weeks back

                                                                                                I am pretty sure linus understood nothing