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,

علم و فناوری

تاریخ انتشار


2021 30 ژانویه





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SmarterEveryDay پیش ماه
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 www.patreon.com/smartereveryday . 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
Gavin AndStuff
Gavin AndStuff پیش 3 روز
Pshhhhh old news. I could land on the moon.
adam philp
adam philp پیش 4 روز
Yyhqara6 you
Almaadin پیش 6 روز
@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.
MaGaO پیش 6 روز
@Almaadin Many Mars probes have crashed. If humans are aboard, it makes sense to train them just in case.
hernan jimenez
hernan jimenez پیش 6 روز
@Almaadin that was done on earth..so 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 😂😂😂😂😂😂😂🤣🤣🤣🤣😭😭😭😭😂🤣🤣🤣🤣😂😭😭
Josh Lounsberry
Josh Lounsberry پیش 34 دقیقه
You should continue your playlist on lawn tools do an episode on rotary hedge trimmers
gambler پیش 54 دقیقه
Every day...
Ankur Debbarma
Ankur Debbarma پیش 2 ساعت
Please get Michael Collins and Buzz Aldrin together.
Ankur Debbarma
Ankur Debbarma پیش 2 ساعت
Destin got hold of a LEGEND.
Matthew Sikora
Matthew Sikora پیش 7 ساعت
I tried to watch this with a straight face, but I simply cannot!
flameceo پیش 8 ساعت
wtheck IRitem. why you hide Dustin update from my subs page? Luckily I search smarterEveryDay out of curiosity.
Some Canine
Some Canine پیش 12 ساعت
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.
Gratten Jenkins
Gratten Jenkins پیش 20 ساعت
Thank you, what a very interesting and informative video
sterlingwulf RBLX
sterlingwulf RBLX پیش 20 ساعت
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
Drunk Astronaut
Drunk Astronaut پیش روز
Can you do a video on the “ Tennis Racquet Theorem” aka “Dzhanibekov Effect”
LoungeActVideos پیش روز
Someone get Mr Ottinger's half burnt snake cartoon made.
Brian Huntington
Brian Huntington پیش روز
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.
Shawn Hunter
Shawn Hunter پیش روز
to land on the moon you have to buy AMC and GME
nxlxn پیش روز
RIP Neil Armstrong. Yes it's been 9 years, but he was all of us.
R Я پیش 2 روز
Saran O.p
Saran O.p پیش 2 روز
Sudeep R
Sudeep R پیش 2 روز
So they essentially made a CNC machine that controls the craft?
Darth Insidious
Darth Insidious پیش 2 روز
NASA : Does all of this Some incel on the internet : "MoOn LaNdInG wAs FaKe!"
Michael Condon
Michael Condon پیش 2 روز
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.
John Doe p144.1
John Doe p144.1 پیش 2 روز
Nasa openly admits that humans cannot safely travel through the Van Allen Belts.... Yet this problem was solved in 1969-1972. What gives?
Atlas پیش روز
@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.
John Doe p144.1
John Doe p144.1 پیش روز
@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?
Atlas پیش روز
@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.
John Doe p144.1
John Doe p144.1 پیش روز
@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.
Atlas پیش روز
@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.
chau do
chau do پیش 2 روز
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!
Nighthawk پیش 2 روز
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* ?!?!?!??!
Chris Gonzalez
Chris Gonzalez پیش 2 روز
The immense drawbridge laparoscopically kill because submarine coincidentally jail above a tame parent. big, moldy slice
Zoltán Kozma
Zoltán Kozma پیش 2 روز
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?
Travis James
Travis James پیش 2 روز
Wayne is a national treasure. I love AMERICA!!!!!!!
Darp پیش 3 روز
Among us??!!!
FILM N SHOOT CO پیش 3 روز
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 Revolution Will Not Be Televised
The X-14 is basically a copy of the British Hawker Siddeley P.1127. Which later became the Harrier Jump jet.
Dwagin Con
Dwagin Con پیش 3 روز
1:44 sus
Vincent Pang
Vincent Pang پیش 3 روز
The lumpy gender phenomenologically request because plastic univariately grin through a acoustic grain. wiry, clammy magazine
Who Farted
Who Farted پیش 3 روز
How did they know the lunar gravitational force before going to the moon?
Ася Гумерова
Ася Гумерова پیش 3 روز
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...
Chas Wolf
Chas Wolf پیش 3 روز
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.
Brandon Routier
Brandon Routier پیش 3 روز
Didnt the Harrier fly in 1967?
djmips پیش 3 روز
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?
el blanco _
el blanco _ پیش 3 روز
Man, the engineer of the LLTV, what a treasure!
Dylan Wager Music
Dylan Wager Music پیش 3 روز
1:45 1:58
Adam Armstrong
Adam Armstrong پیش 3 روز
i dont want to be apart of this planet anymore
TheEmeraldSword پیش 3 روز
4:06 the the angle dynamically shook with his hands, now that's detail.
Kerrie Arkwell
Kerrie Arkwell پیش 4 روز
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.
Dan Bertucci
Dan Bertucci پیش 4 روز
The communists now in charge want nothing to do with moon landings anyway, so...
SlayerofFiction پیش 4 روز
I don't even drink and I want the lunar shot glass
Gert Kruger
Gert Kruger پیش 4 روز
I really do not see the point. The next one will be landed by ai.
KatzRool پیش 4 روز
DrCash7 پیش 4 روز
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.
DrCash7 پیش 4 روز
Ephraim پیش 4 روز
Would be quite impossible to control Starship HLS by hand. Will be autonomous.
Dhoulmegus پیش 4 روز
NASA scientists shoulda just played Kerbal Space Program. I was landing on the Mun as a teenager.
strshooter پیش 4 روز
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... .
maksphoto78 پیش 4 روز
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.
Doritos XD
Doritos XD پیش 4 روز
1:58 among us 🤑🤑🤙👌👍
Kevin Palmer
Kevin Palmer پیش 4 روز
Your questions and the way his eyes lit up. Surprised and also happy to see someone younger understanding his knowledge. Awesome
Spo8 پیش 4 روز
Mr. Ottinger is SO COOL. Man, you just know he has countless other amazing stories.
kkcsak ndclon
kkcsak ndclon پیش 4 روز
The wild patricia univariably influence because belief exemplarily sigh unlike a flashy comic. aromatic, lethal lyocell
Omadais پیش 4 روز
Please do a video on the X-14
The Bloody Truth
The Bloody Truth پیش 4 روز
Back to the moon? 😅
Ciorram1 پیش 4 روز
Comment for algorithm.
Leandro Gogola
Leandro Gogola پیش 5 روز
I confess, Mr. Ottinger make me laugh a few times. What a great man
Dadly25 پیش 5 روز
1:45 when the impostor is sus
Ron Burghandy
Ron Burghandy پیش 2 روز
I knew there'd be at least one lol
DavyBoySmith پیش 5 روز
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.
Egon Pax
Egon Pax پیش 5 روز
We aren’t going back to the moon, not with lunchbox Joe in power.
Brian Huntington
Brian Huntington پیش روز
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 Huntington
Brian Huntington پیش روز
Very true
gordonfree man
gordonfree man پیش 5 روز
Everybody know Apollo is a big lie
Atlas پیش 4 روز
Binky Carolina
Binky Carolina پیش 5 روز
John Bravo
John Bravo پیش 5 روز
@ 5:45 ---> food for thought, the Harrier Jump Jet was first tested in 1967 and introduced into service in '69... 😉
Florian Walter
Florian Walter پیش 5 روز
Why not installing a helium baloon, that lifts 5/6 of the lander's weight?
Super Song
Super Song پیش 5 روز
at this point this man knows too much to be safe 🙏😂
Ryan Rich
Ryan Rich پیش 5 روز
Where is the loud roar of the rocket when you hear them calmly talking as lunar is landing?
Ryan Rich
Ryan Rich پیش 5 روز
@Atlas nms was tight
Atlas پیش 5 روز
It's a pressure fed engine firing in a vacuum, come on.
Hirvieläin پیش 5 روز
I would assume the lander's computer will perform the descent and landing in Artemis program.
Suphakrit Phantharat
Suphakrit Phantharat پیش 5 روز
Why do we need manual landing when we sent multiple rovers to mars and it has ability to auto land with high precision
Bogdan Bogdan
Bogdan Bogdan پیش 5 روز
15:55 oh my ghaad
Bread Spreader
Bread Spreader پیش 5 روز
1:45 kinda sus....
Patar پیش 5 روز
They actually planned on hitting the moon harder, the crunch pistons on the legs didn't get crunched all the way, that's why their steps are more awkward than usual, edit, because the ladder was hooked on the leg
Rooster Original
Rooster Original پیش 5 روز
Hahaha cant wait til you debunk it by looking into it :)
Atlas پیش 4 روز
@DrCash7 there really isn't
DrCash7 پیش 4 روز
@Atlas nOtHinG to DeBuNK heRe FolKS
Atlas پیش 5 روز
There's nothing to debunk.
britshell پیش 5 روز
How? miniatures and a sound stage...
mikenco پیش 5 روز
That was fascinating! Very few people are qualified to call Neil Armstrong an idiot! lol
The Internet
The Internet پیش 5 روز
I think what you're saying, that we need to learn about *why* decisions were made, is really the root of the "teach a man to fish" adage, and it's such a huge issue with the way I see things being taught. Don't give people the answer, give people the tools to find the answer.
Phineas G
Phineas G پیش 5 روز
Folks at NASA are probably taking notes rn.
Black Panther
Black Panther پیش 5 روز
Why does the velocity have to be zero upon landing? Why not near zero?
Lavalambtron پیش 5 روز
You're making it too easy for tomorrow's kids, they will look like geniuses but instead it was all on youtube.
Some Ones
Some Ones پیش 5 روز
The power of technology.
Laura White
Laura White پیش 6 روز
never went to the moon brah. hash tag moon landing hoax
Atlas پیش 5 روز
@Laura White I have better things to do than watch conspiracy videos. That said, I never came across a good hoaxer argument.
Laura White
Laura White پیش 5 روز
Atlas gee what a convincing retort Atlas. See “American Moon” on YT and then try to tell me it’s not possible that something’s up with the official narrative.
Atlas پیش 5 روز
David Madsen
David Madsen پیش 6 روز
You are truly a treasure! I so appreciate all of your videos, they are some of the most wholesome and informative media out there.
Ian Thornton
Ian Thornton پیش 6 روز
Asophos پیش 6 روز
1:58 amongus
Some Ones
Some Ones پیش 5 روز
Wyrylka پیش 6 روز
1:44 I can't take this anymore make the pain stop
Bears پیش 4 روز
Kinda sus
Aidan Gavin
Aidan Gavin پیش 6 روز
Konnies Egg
Konnies Egg پیش 6 روز
Thanks for the tutorial, just got invited to a Martian party. Heading out tomorrow night.
goutvols103 پیش 6 روز
Another great video. It would be interesting to know more about the rocket motor that was on the lander and got it back to the orbiter. I had read something where the NASA engineers made it as simple as possible; without any electrical connections to reduce points of failure. It was basically just a mixing of two (2) chemicals by means of the turning of two (2) mechanical valves. Thanks in advance.
Carl Carter
Carl Carter پیش 6 روز
I flew a test device in Grumman hangar 5 over a mosaic set of lunar photos. All I had was a mockup of the LM cockpit. I made 3 test landing attempts for evaluation data. 50 years later I toured the hangar at the Cape Canaveral facility and in an alcove next to the Saturn V rocket was the same unit I tested at the Grumman facility. I worked at Grumman for 30+ years on the A-6 Intruder , the F-14 Tomcat,and The JSTARS . Fun years!
The Obsolete Man
The Obsolete Man پیش 6 روز
There's only three ways to go to the Moon, or one. Step one, resurrect Stanley Kubrick. Step two, rent al large studio in the desert. Step three, buy all media and political influencers to give it credibility. Or Get a bunch of wicked smaht guys to get'em there.
Traci Wagnon
Traci Wagnon پیش 6 روز
U said among us a lot
lungotevere پیش 6 روز
Excellent. Great job. I know a lot more about lunar landing than I did before watching this. Sign me up!
Tampa Blush
Tampa Blush پیش 6 روز
1:59 among us
Tampa Blush
Tampa Blush پیش 6 روز
1:45 amongus
Jeremy Hopkins
Jeremy Hopkins پیش 6 روز
Bradyn Austin
Bradyn Austin پیش 6 روز
Boots on the moon.
JPazer پیش 6 روز
1:45 , 1:59
JPazer پیش 6 روز
Derrick Fyffe
Derrick Fyffe پیش 6 روز
Hey, I know this video is about the moon, but I have had this question on my mind for a while now, and the recent Mars landing has brought it back again (and I can't think of anyone else to ask) so here goes... This is regarding the 7 minutes of terror: Do you think that it is possible for NASA to build signal amplifiers that would be strategically placed between Mars and Earth, and these would boost the signal enough to reduce the delay in communication time? Or is this still too far in the future? I'm thinking 2 or 3 satellites spaced evenly across the distance whose purpose is to catch and slingshot the signals back and forth... Thank you for your response (provided you get this message, or for anyone else who may have a theory/answer).
Atlas پیش 6 روز
The delay is because of the finite speed of light. There's nothing that can be done about that.
Chinmoy Kathar
Chinmoy Kathar پیش 6 روز
Don't you think the next lander will have highly AI assisted landing if not completely AI assisted landing? Although I agree that manual intervention from the onboard astronauts might be necessary and hence the training on earth is necessary.
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