How Astronauts Land on the Moon - Smarter Every Day 250

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A very special thank you to Wayne Ottinger
Check out the AMAZING website by Ben Feist that synchronizes all Apollo data:
I had to find a lot of archival footage to make this video. Thanks to Devin for helping me find the original Apollo LLTV footage from Ellington.
A special thank you to steveslater1987 for providing the footage and audio of the Neil Armstrong Interview after flying the LLTV.
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Ambiance, audio and musicy things by: Gordon McGladdery
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Warm Regards,

жүктөп алуу


  • We're going back to the moon, and we're going to need to train Astronauts how to land. This video is the result of trying to understand that control problem better. in the next video of this series, I'll show you footage from an actual NASA Lunar Lander software test I participated in many years ago. Also, I'd like to say express grateful I am to everyone who supports Smarter Every Day on Patreon at . If you've never considered being a Patreon of Smarter Every Day, then feel free to click the link if you'd like to see what it's all about. If not, then no big deal! I'm grateful that you're here. Warm Regards, Destin

    SmarterEveryDaySmarterEveryDayАй мурун
    • Pshhhhh old news. I could land on the moon.

      Gavin AndStuffGavin AndStuff7 күн мурун
    • Yyhqara6 you

      adam philpadam philp8 күн мурун
    • @MaGaO true, but the software to land reliably is fairly new and getting better all the time. Most of the failed Mars landings happened without the benefit of the sensors and algorithms available now. It's still best to train the pilots of course.

      AlmaadinAlmaadin10 күн мурун
    • @Almaadin Many Mars probes have crashed. If humans are aboard, it makes sense to train them just in case.

      MaGaOMaGaO10 күн мурун
    • @Almaadin that was done on gullible lol. Mars supposedly is 1% density of earth atmosphere. which means no air. an you need air to slow parachute and need air for lift when they eventually fly helicopter drone. so the impossible without air debunks your Mars landing 😂😂😂😂😂😂😂🤣🤣🤣🤣😭😭😭😭😂🤣🤣🤣🤣😂😭😭

      hernan jimenezhernan jimenez10 күн мурун
  • we going to the moon again !!!!!!!!!!!!!!!!!!!!

    Thomas JohnsonThomas Johnson8 мүнөт мурун
  • Best way is: No human hands allowed! We can already land or fly anything better by computer than by hand, even the specialized ones.

    Marco MendonçaMarco Mendonça22 мүнөт мурун
  • 1:45 - Amungus 1:59 - Amungus

    Communist CuberCommunist Cuber6 саат мурун
  • Wayne Ottinger is too humble (in regards to engineers of the past).... IMHO (i'm a computer/software engineer) engineers from decades past that's specialized in a certain field needed to be well versed in the complementary fields as well, IE: Software/Computer with electrical, mechanical, materials engineering. I find that today the engineering practices are too hyper focused & more study into the complementary fields would not only move our technology forward faster & with increased quality, but also at a better cost for society as a whole...... The more I study & tinker in the electrical & materials engineering side of things, it's made me a better engineer 10x **** rant over ****

    John HJohn H6 саат мурун
  • why didn't they just use helium balloons???? get me a job at NASA stat!

    J. BJ. B9 саат мурун
  • Destin: "among us" 12 year olds: _suppressed laughter_

    mfaizsyahmi.mfaizsyahmi.10 саат мурун
  • 1:45 A MONGUS!!

    XinanXinan10 саат мурун
  • A Funny Thing Happened on the Way to the Moon.

    Love SupremeLove Supreme18 саат мурун
  • 1:58 Amogus

    IMayHaveNukesIMayHaveNukes22 саат мурун
  • You are one smart dude, there is no doubt, and I love your videos. You posses a very down to earth way of explaining topics that is very appealing. But, I want to offer some friendly advice on the use of the phrase "for free". You cannot give or get something "for free". Inserting the word "for" implies that you have something called "free" that you can give or get in exchange for something. So, first you have to give or get something called "free" before the transaction can take place. Can't be done. The proper way to phrase it would be to simply say "I'm giving you something "free". It's proper and it sounds correct, because it is. Growing up in a family full of teachers has made it impossible for me to let this egregious misuse of the phrase impossible to ignore. However, nearly everyone misuses it, so don't feel too bad. :-} Next up will be my rant on the overuse of the word "basically", which basically has no basic meaning and is nothing more than a basic filler word. There, I feel much better now... Hey, maybe I should start a channel of my own.

    David TowerDavid TowerКүн мурун
  • I love how some people are commenting that humans never went to space on other's comments, and not commenting directly. Cuz they don't have the courage to and in their heart they know they are wrong😂 but won't accept cuz they don't want to and look stupid in front of others😂

  • 1:45 sus

    Stonks AirlinesStonks AirlinesКүн мурун
  • Great video, great to hear from Mr. Ottinger

    GiuseppeSanGiuseppeSanКүн мурун
  • 1:44 amogus

    Emil PEmil PКүн мурун
  • The flimsy asphalt wessely depend because country extracellularly scorch pro a tidy mom. tired, youthful dust

    Naveen ParaparanNaveen ParaparanКүн мурун
  • This was fascinating.

    Test TestTest Test2 күн мурун
  • Thanks for the great video! I work on HLS and our CE recommended this LOL

    Alexandra ToftulAlexandra Toftul2 күн мурун
  • 3:20 nice tracking Destin!

    HERGRYNHERGRYN2 күн мурун
  • But if NASA can program a robot to drop another robot on Mars all on its own. Why do astronauts need to land on the moon on their own? Is it not safer to use the programming? No atmosphere seems like it would create a very consistent and reliable medium to program for, then you don't need to add the possibility of human error in landing.

    Joe O'ConnorJoe O'Connor2 күн мурун
    • Yes, but robots aren't as good as humans yet.

      StormCrownStormCrownКүн мурун
  • If i recall correctly wasn't the Harrier also flying the late 60's?

    TheSharko123TheSharko1233 күн мурун
  • 1:58 Whaaaaa?

    Ean EEan E3 күн мурун
  • I wish the U.S still strived to be #1 and invest money into space rather then using our tax dollars to give other countries welfare all the time. It's a shame to think about how far ahead we would be if we were isolationist and reinvested our own money into our own economy.

    Sunken SlinkySunken Slinky3 күн мурун
  • You should have worn an omega speedmaster motm

    Jamane Ma Raas HollingtonJamane Ma Raas Hollington3 күн мурун
    • Great video

      Jamane Ma Raas HollingtonJamane Ma Raas Hollington3 күн мурун
  • Silly. That can’t land on the moon. Flat Earth Baby

    Jeremiah JohnstonJeremiah Johnston3 күн мурун
    • dummy

      AtlasAtlasКүн мурун
  • Neil Armstrong... Boiler Up!!

    Lukas SmithLukas Smith3 күн мурун
  • Imagine if they had Kerbal Space Program back then.

    Notable DiscomfortNotable Discomfort3 күн мурун
  • 1:45

    DizziDizzi3 күн мурун
  • Incredible stuff. A truly great group of minds. You will never be thanked enough, Mr. Armstrong. Rest peacefully among the stars.

    Michael BMichael B4 күн мурун
  • You should continue your playlist on lawn tools do an episode on rotary hedge trimmers

    Josh LounsberryJosh Lounsberry4 күн мурун
  • Every day...

    gamblergambler4 күн мурун
  • Please get Michael Collins and Buzz Aldrin together.

    Ankur DebbarmaAnkur Debbarma4 күн мурун
  • Destin got hold of a LEGEND.

    Ankur DebbarmaAnkur Debbarma4 күн мурун
  • I tried to watch this with a straight face, but I simply cannot!

    Matthew SikoraMatthew Sikora4 күн мурун
  • wtheck KGfilm. why you hide Dustin update from my subs page? Luckily I search smarterEveryDay out of curiosity.

    flameceoflameceo4 күн мурун
  • Goes to show you how much we take all of the technical tools for granted. I imagine engineers will pre-program all of the error correction techniques in a computer for the re-return, but the Apollo crew never had that. They had to do everything with mechanics and training. I think it will be much less of a technical challenge on each individual person, but still a staggering engineering feat overall.

    Some CanineSome Canine4 күн мурун
  • Thank you, what a very interesting and informative video

    Gratten JenkinsGratten Jenkins5 күн мурун
  • how much would be saved in fuel weight if the rocket first stage was accelerated on a maglev ramp before first stage engine ignition? seems like maglev trains are similar sizable payload can be accelerated to high speeds using electricity and starting a rocket to escape velocity from maglev speeds would have a huge impact compared to starting from a standstill

    sterlingwulf RBLXsterlingwulf RBLX5 күн мурун
  • Can you do a video on the “ Tennis Racquet Theorem” aka “Dzhanibekov Effect”

    Drunk AstronautDrunk Astronaut5 күн мурун
  • Someone get Mr Ottinger's half burnt snake cartoon made.

    LoungeActVideosLoungeActVideos5 күн мурун
  • I absolutely love this video!! My Grandfather was a Quality Control Engineer with NASA and worked on every APOLLO mission!! My Grandfather oversaw the manufacture and installation of the battery systems of the lunar lander! A secret my Grandfather told me before he passed afew years back was. Before they affixed the housing of the batteries, my Grandfather and his crew had a bronze plaque made with their names inscibed on it. They attached it to the top of the housing that covered the batteries!!!! This could have caused a mass firing event if they were caught!!! So now my Grandfather's name is on the moon! This I am very proud of! Just thought you might like to hear the story.

    Brian HuntingtonBrian Huntington5 күн мурун
  • to land on the moon you have to buy AMC and GME

    Shawn HunterShawn Hunter5 күн мурун
  • RIP Neil Armstrong. Yes it's been 9 years, but he was all of us.

    nxlxnnxlxn5 күн мурун
  • 1:45

    R ЯR Я6 күн мурун

    Saran O.pSaran O.p6 күн мурун
  • So they essentially made a CNC machine that controls the craft?

    Sudeep RSudeep R6 күн мурун
  • NASA : Does all of this Some incel on the internet : "MoOn LaNdInG wAs FaKe!"

    Darth InsidiousDarth Insidious6 күн мурун
  • I’m looking forward to seeing more videos on returning to the moon. Especially to see what the engineers come up with for a test vehicle to fly here on earth.

    Michael CondonMichael Condon6 күн мурун
  • Nasa openly admits that humans cannot safely travel through the Van Allen Belts.... Yet this problem was solved in 1969-1972. What gives?

    John Doe p144.1John Doe p144.16 күн мурун
    • @John Doe p144.1 The most important bits, like video and audio, sure. Telemetry, not so much, unless of course you're dealing with a severe malfunction, like in Apollo 13. In that case, keeping the telemetry tapes makes sense, and they did.

      AtlasAtlas5 күн мурун
    • @Atlas I hear what your saying but at the same time the moon landing was THE most significant scientific achievement in human history... Wouldn't you think that is something that would be held onto and cherished for generations?

      John Doe p144.1John Doe p144.15 күн мурун
    • @John Doe p144.1 It's a shame they lost the original tapes. But I supposed it made sense for them to be erased, since the video signal had been archived elsewhere and keeping telemetry around isn't standard.

      AtlasAtlas5 күн мурун
    • @Atlas OK, fair enough. What about the fact that Nasa "lost" over 13,000 reels of telemetry data. Also contributing to the official explanation as to why we haven't been back to the moon.

      John Doe p144.1John Doe p144.16 күн мурун
    • @John Doe p144.1 Not really. The rocket used in the Apollo program is no longer manufactured. The last Saturn V was made nearly half a century ago. Can't send people beyond LEO without a a massive rocket.

      AtlasAtlas6 күн мурун
  • The Plan is good! Hopefully it will happen soon! I would like to see human beings will be traveling to the Moon for their vacations and back to the earth! And then Human being will develop the advantage technologies to travel to other planets to live, working, vacation, ...... and back to the Mother Earth!

    chau dochau do6 күн мурун
  • I don't know about you.... but these prototype propulsion techniques, if they were ever snatched by the military and repurposed for military vehicles,.... and IF one, or some, if any, of those prototypes were seen by the public.... there's a really good chance they'd look like flying saucers, to the layman. think about it... 1964 era, middle of the space race, lots of UFO sightings, and now we know that NASA had a *FREAKING VTOL PROTOTYPE* ?!?!?!??!

    NighthawkNighthawk7 күн мурун
  • The immense drawbridge laparoscopically kill because submarine coincidentally jail above a tame parent. big, moldy slice

    Chris GonzalezChris Gonzalez7 күн мурун
  • Am I missing something here? Why wouldn't they try to evenly fill the system with helium compartments or vacuum? Would that be beyond the limit of how much that volume could lift compared to the weight of the lunar lander?

    Zoltán KozmaZoltán Kozma7 күн мурун
  • Wayne is a national treasure. I love AMERICA!!!!!!!

    Travis JamesTravis James7 күн мурун
  • Among us??!!!

    DarpDarp7 күн мурун
  • My pal Jonathan Dimock works for NASA. He’s the man who speaks to the president re NASA biz. My pal Johnathan had zeroooo experience to have got this job....

  • The X-14 is basically a copy of the British Hawker Siddeley P.1127. Which later became the Harrier Jump jet.

    The Revolution Will Not Be TelevisedThe Revolution Will Not Be Televised7 күн мурун
  • 1:44 sus

    Dwagin ConDwagin Con7 күн мурун
  • The lumpy gender phenomenologically request because plastic univariately grin through a acoustic grain. wiry, clammy magazine

    Vincent PangVincent Pang7 күн мурун
  • How did they know the lunar gravitational force before going to the moon?

    Who FartedWho Farted7 күн мурун
  • Эти "проэкты"-возможность воровать общие деньги,играть во взрослые игрушки и не быть наказанным,а быть "уважаемыми космическими ворами" Я предпологаю.что верхушка США и СССР были в сговоре и много лет смеялись над доверчивыми гражданами...

    Ася ГумероваАся Гумерова7 күн мурун
  • We all see drones, and the amazing technology they use to fly straight, steady, and in some cases, autonomously. I'm sure there is a tie-in here.

    Chas WolfChas Wolf7 күн мурун
  • Didnt the Harrier fly in 1967?

    Brandon RoutierBrandon Routier7 күн мурун
  • What actually happens on the moon landing(s) low-key confirmed by his guest Ben Feist is that the Apollo Guidance Computer (AGC) does all of the flying until final approach where Armstrong and other astronauts use the rate-of-decent mode (P66), a mode not unlike drones for the home market where the stabilization is handled by the AGC and Neil uses the fly by wire stick to control horizontal velocity, avoid a boulder field and then bring bring the horizontal velocity to zero; another two switches can speed up or slow down the computers rate of descent in increments of one foot per second. I know the LLTV also had a computer. How similar was it's stabilization and controls to the actual LEM and the AGC's P66?

    djmipsdjmips7 күн мурун
  • Man, the engineer of the LLTV, what a treasure!

    el blanco _el blanco _7 күн мурун
  • 1:45 1:58

    Dylan Wager MusicDylan Wager Music7 күн мурун
  • i dont want to be apart of this planet anymore

    Adam ArmstrongAdam Armstrong8 күн мурун
  • 4:06 the the angle dynamically shook with his hands, now that's detail.

    TheEmeraldSwordTheEmeraldSword8 күн мурун
  • This was an amazing video. Thank you. Understanding the why truly is as pertinent as the how. If you understand the why, then engineers can use updated techniques if possible instead of just repeating work arounds.

    Kerrie ArkwellKerrie Arkwell8 күн мурун
  • The communists now in charge want nothing to do with moon landings anyway, so...

    Dan BertucciDan Bertucci8 күн мурун
  • I don't even drink and I want the lunar shot glass

    SlayerofFictionSlayerofFiction8 күн мурун
  • I really do not see the point. The next one will be landed by ai.

    Gert KrugerGert Kruger8 күн мурун
  • amogus

    KatzRoolKatzRool8 күн мурун
  • 4:30 "and if there were no drag.." If there were no drag then there would be no thrust/movement. Just like if there were no weight/gravity there would be no lift.

    DrCash7DrCash78 күн мурун
  • Fek

    DrCash7DrCash78 күн мурун
  • Would be quite impossible to control Starship HLS by hand. Will be autonomous.

    EphraimEphraim8 күн мурун
  • NASA scientists shoulda just played Kerbal Space Program. I was landing on the Mun as a teenager.

    DhoulmegusDhoulmegus8 күн мурун
  • Well done video, learned a lot, (like there are still people that think we didn’t go to the moon, and the earth is flat. I’m sure there are still those that think Hitler didn’t murder millions of people in death camps...) My question is, why go back to the moon? What’s there that we can benefit people? It will cost billions of dollars, tax dollars, just to say we can it? It’s a moon with ... not much on it. The distances to leave our solar system to anyway else are just too far away. Sorry, this isn’t Star Trek, or some other fantasy TV show... .

    strshooterstrshooter8 күн мурун
  • Nah uh, they didn't "make sure velocity is zero when touching the surface". They had probes sticking out of lander which, when the probes touched the surface, automatically shut the engine down (while still some meters above the ground), so the lander gently dropped to the ground.

    maksphoto78maksphoto788 күн мурун
  • 1:58 among us 🤑🤑🤙👌👍

    Doritos XDDoritos XD8 күн мурун
  • Your questions and the way his eyes lit up. Surprised and also happy to see someone younger understanding his knowledge. Awesome

    Kevin PalmerKevin Palmer8 күн мурун
  • Mr. Ottinger is SO COOL. Man, you just know he has countless other amazing stories.

    Spo8Spo89 күн мурун
  • The wild patricia univariably influence because belief exemplarily sigh unlike a flashy comic. aromatic, lethal lyocell

    kkcsak ndclonkkcsak ndclon9 күн мурун
  • Please do a video on the X-14

    OmadaisOmadais9 күн мурун
  • Back to the moon? 😅

    The Bloody TruthThe Bloody Truth9 күн мурун
  • Comment for algorithm.

    Ciorram1Ciorram19 күн мурун
  • I confess, Mr. Ottinger make me laugh a few times. What a great man

    Leandro GogolaLeandro Gogola9 күн мурун
  • 1:45 when the impostor is sus

    Dadly25Dadly259 күн мурун
    • I knew there'd be at least one lol

      Ron BurghandyRon Burghandy6 күн мурун
  • Destin, I have a friend who has an LLTV sitting in his shed at work. I was fortunate enough to get a tour of his "work" and I can honestly say as much fun as it looks... yeah, no... His work is the same AFRC mentioned in your video. I was most impressed by the Peroxide thrusters mounted on every corner and axis of the unit. A tour of the Armstrong facility was the most incredible thing I have had the opportunity to experience. if you are ever there ask about the LLTV and perhaps they can take you to the closet for a look see. God Bless you man, I love your take on science.

    DavyBoySmithDavyBoySmith9 күн мурун
  • We aren’t going back to the moon, not with lunchbox Joe in power.

    Egon PaxEgon Pax9 күн мурун
    • obama and biden almost destroyed the Space industry! I live in Brevard county. TRUMP brought back space flights and the area is growing immensely!! Everyone is scared biden is going to do somthing stupid, again!

      Brian HuntingtonBrian Huntington5 күн мурун
    • Very true

      Brian HuntingtonBrian Huntington5 күн мурун
  • Everybody know Apollo is a big lie

    gordonfree mangordonfree man9 күн мурун
    • Wrong

      AtlasAtlas9 күн мурун

    Binky CarolinaBinky Carolina9 күн мурун
  • @ 5:45 ---> food for thought, the Harrier Jump Jet was first tested in 1967 and introduced into service in '69... 😉

    John BravoJohn Bravo9 күн мурун
  • Why not installing a helium baloon, that lifts 5/6 of the lander's weight?

    Florian WalterFlorian Walter9 күн мурун
  • at this point this man knows too much to be safe 🙏😂

    Super SongSuper Song9 күн мурун
  • Where is the loud roar of the rocket when you hear them calmly talking as lunar is landing?

    Ryan RichRyan Rich9 күн мурун
    • @Atlas nms was tight

      Ryan RichRyan Rich9 күн мурун
    • It's a pressure fed engine firing in a vacuum, come on.

      AtlasAtlas9 күн мурун
  • I would assume the lander's computer will perform the descent and landing in Artemis program.

    HirvieläinHirvieläin9 күн мурун
  • Why do we need manual landing when we sent multiple rovers to mars and it has ability to auto land with high precision

    Suphakrit PhantharatSuphakrit Phantharat9 күн мурун
  • 15:55 oh my ghaad

    Bogdan BogdanBogdan Bogdan9 күн мурун
  • 1:45 kinda sus....

    Bread SpreaderBread Spreader9 күн мурун