These old explanation videos are so much more educational and easier to understand, I’ve learned how transmissions work, how differentials work and how to be a ww2 bomber gunner

Don't forget how to take our German tanks

@Oyit’sAustin goddamn you I was gonna say that

@Bacopa68 Why is that relevant to me?

Not really

I think u just old

"The differential looks complicated, but once we understand its principle, it's amazingly simple". I love that line.

It's a mind blowing to me how when we size up the model and cut a few corners makes everything so understandable. From 4 bars shaped like cross to that gear-I-forgot-the-name-of. The gears looks overly complicated but really it's just efficiently placed 'bars' just tighter and shorter. Or is it just me?

I like it because I believe the sticks model is how Archimedes extended his principals of Levers into multiple continuous levers now known as "gears". With that he then constructed the antikythera mechanism and with his principals we have constructed the world as we know it.

Bevel gear

Worm gear?

That is correct.

я в шоке. сто лет назад сделали такое полноценное видео объясняющее ход мысли инженеров. браво

@Ilya 007 понятным это каким? Мне лично непонятно) Если это связано с фашистской идеологией, так такие видео есть на ютубе, итого, даже выступления гитлера есть

@Илья Игнатов самое главное в этом обучающем фильме что его можно смотреть без знания языка и без субтитров, настолько всё понятно показана, и на столько хорошо построино повествование что тебе в колову приходят те же идеи по "апгрейду" демонстрационного устройства одновременно с показам оного Благодарю, теперь для меня дифференциал это не просто запчасть страной формы

@Roman Koregin Да! Когда люди горели ИДЕЕЙ !!! Понимаю о чем ты... Натыкался на такие видосы... (Помню что то банальное,типа "Продление ресурса Грузовиков на производстве" 196? год вроде..)Но я был реально в "Ах.е"от подхода и отвецтвенности... Люди правда верили в "КАМУНИЗМ",и рвали спины на общее благо! Не понимая что это дорога была в Никуда....

я только сейчас понял, как работает дифференциал. не то чтобы я тупой, просто раньше не задумывался об этом)))

Круто!!!

5:09 - Moment of enlightenment. I literally don't have words to explain how well made this video is - so much genuine effort went into this so that the explanation is as intuitive and easy-to-understand as possible!

@Nirbhay 😎 👍

@American Plague Yeah I get it. Its okay bro.

@Nirbhay I'm sorry. Not trying to be a d**k. I just get sick of hearing "literally" being thrown around so much. I've seen 5 comments so far just in OP comments, just in this comment section with people "literally" doing something. It's similar to how like, you know, how like, people like use the word "like" all of the time to like, get their like, point across? With a like, upward inflection at the end so it like, sounds like a question? Like, you know what I like, mean?

@American Plague Haha you got me.

You literally don't have words? I'm glad that's clarified. At first I thought you figuratively didn't have words.

Let's take a moment to appreciate the machinist who built like 10 progressively complicated miniature differentials for this film.

@Ian I saww what you did there. Diff.

@aaron m97oh nah that's backwards thinking. Having a robot around to vacuum my floor means I'm free to devote my time to taking pride in more fulfilling things.

Not to mention the team that sat there with all the equipment necessary to film it. This was many decades before even early home video cameras were available, much less digital cameras and smartphones.

👍👍👍👍👍👍👍👍👍👍

@shinjiprofile similar to user manual out there. the first videogame series would have a detailed manual about the mechanics of hr game. subsequent guides manuals would be concise but hardly that. just sparsely written text.

I really appreciate that they started explaining it by introducing a really basic version of the differential. Having the absolute simplest concept of things as a ground to stand on for our comprehension really makes everything easier to understand by people of all levels of intellect. I thoroughly enjoyed this.

Absolutely love how their only two reasons they give as to why having a fast spinning driveshaft running through the cabin completely exposed is 'because it would be inconvenient for passengers' and 'would be awkward for carrying luggage'.

Ancient, but fantastic. Currently going through an education to become driving instructor in Germany, and this video was used to visualize functioning of the differential. I wonder if the makers of this video would have guessed, that their material would still be relevant (and holding up) such a long time later. Respect to them.

I love these old informational videos. They start with core concepts, show examples, and reverse engineer it. Even a mathematically and mechanically inept person like me can follow along

I think the reason this explanation is so good is that it approaches the differential not only from a “ here is mechanically how it works” but a “ here’s the problem that each piece solves” as well.

yeah like they basically showed how the engineers solved it

@Sawta In reality, impact loading and number of teeth is handled seperately and are not directly related at all. In gears, the teeth are just made thicker if the number of teeth decreases. However, to account for assembly/manufacturing tolerances there is a small gap between meshing teeth called backlash(usually 50~200 microns in modern differential bevel gears) and this is the only rotational play which can cause impacts. Impact on differential isn't much of a concern as it hardly accounts for 0.1% of a vehicle's life. Differential gears are designed completely with normal operation in mind and are simply tested at the very last stage to ensure that they can withstand certain number of impacts. The only relation I can think of is that increasing teeth is better for impact simply because the impact wear will be distributed over more teeth, reducing its effect on each teeth.

@Sawta indeed, continues meshing of the gears prevents shock load and impacts. Shock load is when a part under high stress or no stress is suddenly accelerated. Which is why you can break a piece of spaghetti very easily but if you slowly and cautiously apply pressure to it, you can get it to flex quite a bit.

The space programs of the 50s-70s was mostly calculated by sliderules, those boys, and some women too were sharp. They were engineering students of life,physics, mechanical, chemical, metallurgical. No computers folks, in their minds,grappling with some heavy unknowns and they pulled it off. was a pleasure to be exposed to the last of them coming out of h.s.entering the workforce. Problem solving at an artform, the best education I could have gotten. Not so many specialists, some of them were amazingly versatile and wouldn't be stumped, not for long anyway. There stuff worked. I feel like a slouch now

This video has really given me a great deal of respect for the sheer amount of effort that has gone into transportation.

I always wanted to know 'how a car differential works?' But no video could teach me except this one. It taught me the complex mechanics so easily!

I really like how this is explained, it feels so much easier to understand than any modern lecture, text, or lesson.

.....

I love watching these types of videos- they teach you with simplicity and in a way everyone will understand

83 years later, still no animation can beat this.

Is that a real old video ? What a jool

you literally could animate this 1:1

Real

85

Es- ti-ef-yu

It’s amazing how clearly Chevrolet explained things and engineered things back then

A new card still have a drive shaft tunnel today

I've watched several animated videos before explaining the same stuff, but they never bothered to solve the problem using simple mechanics before, they straight up jumped into the gears and stuffs without explaining the basic solution upon which we can build more robust and complicated mechanisms, like this video did. It's excellent.

Simple and complex at the same time, such a great invention that, today, every single automobile that drives over 3 or more wheels has one.

Never knew about thisuntil today. If it was by today's standards, I'd be seeing ads in front of the gears asking if I want a new GM car. Great learning video. Simple, clear, and starts off easy and then gradually shows the actual engineered design.

Perfect education. Real knowledge is ability to explain complicated things in a simple way. People that made this film possible deserve the applause.

@frostonium welcome

‏The Innate Nature in man recognizes what is good and bad, what is true and false. It recognizes that the Attributes of Allah must be True, Unique, and All-Perfect. It does not feel comfortable towards any kind of degradation of His Attributes not does it qualities to the Creator. Many who became “discontent with God” did so because of the practices of the Church in medieval Europe and because of the claims of “god dwelling in a son” and the concept of the “original sin”. However, they “escaped” into worshipping a new theory called “mother nature” as well as the “material” World. With the advancement of materialistic technology others from different religions adopted the concept of “forgetting about God” and “let us live this life and enjoy it!”, not realizing that they have chosen the worship of the “original god” of Rome: Desire!. ‏NOW we can see that all of this materialistic and secular progress produced a spiritual vacuum that led to complex social, economical, political, and psychological problems. Many of those who “fled” their “religions” are in search again. Some try to “escape” the complexity of their daily lives via various means. Those who had the chance to examine the Qur’an and Islam, proceed with a complete way of life that relates man to establish a purpose for his presence on earth. This is well recognized in the Attributes of Allah and what does He require from man. He does not want man to be enslaved to any false deity: nature, drugs, lust, money, other man, desire, or sex. He provides man with the proofs that He is the One who can redeem so that man can free himself from the slavery to any form of creation and to turn to his Creator Alone. THIS Creator Has Perfect Attributes. He is the First, nothing is before Him, the Ever Living. To Him is the Final Return where everyone will be dealt with in the Most Perfect and Just way. He does not begot nor He is begotten. Those who attribute Divinity to Jesus forget or ignore the fact that Jesus was in a mother’s womb. He needed nutrition; he was born and grew up to be a man. He was trusted with the Gospel as a Message to the Children of Israel: “For there is One God, and one mediator (i.e. a messenger) between God and men (the ‏ Children of Israel), the man Christ Jesus) (I Timothy 2:5). A man-messenger calling his nation not to worship him: “But in vain they do worship me!” (Mathew 15:9). A man who needs to eat, walk, sleed, rest, etc.. cannot have Divine Attributes because he is in need and God (Allah) is Self-Sufficient. * ‏‎‏ https://www.fly-cards.com/en/cards/42 🌹 ‏https://youtu.be/YtQGJ1pS6Fs 🌷 https://drive.google.com/file/d/10Q_WcvkBJDR3XJOqdGuIG3ri-lYA4JIO/view 🌻

they are dead

Oh wow, such clarity provided in the explanation of the differential system of a car, that now I'm looking to see whether a similar styled video exists explaining high range, low range 4x4 gearing systems and many other interests that I have. Wonderful illustrations given here.

By far, this is the best illustration of how a differential works. A work of genius!

I had no idea so much engineering went into something as simple as turning a corner.

This is one of the best simple explanations of how a gear works and how we got to that design that I've ever seen, even though the video isn't really about gear design.

*"...But once we understand its' principal, it's amazingly simple!"* And this video explains it amazingly and simple! Great job, 1937! 🤯

@Stephen Dias nope

@Eðin Hvassur irrelevant

Me too, what sorcery is this!?

Yes!

For a video nearly 100 years old. It's really well made. Informative and interesting. I hope there are more videos from this same guy / series.

I love this kind of thing. It's amazing to see humanity have a problem and try and fix it and even make it better. always striving for progress.

I love this. So well and clearly explained.

I love these old BnW shows, they're informative and has some iconic aesthetic plus the unnecessarily long but cool intro

Almost a 100 years later, this explanation is still phenomenal. These engineers/scientist were way ahead of their times.

Yea meanwhile me over in 2022 take an hour to find a site with actual information that actually teach me the straightforward point I need

I am like 90% sure my car from the mid 80's still uses more or less the same thing just with a tweak or two if that.

@DarkShadowsX5 It was white excellence.

They were not ahead, humanity just keeps on regressing and focusing on bs instead of important matters.

How can they be ahead of their time because of a creation that was invented and used during their time? That phrase only applies when people theorize something that eventually will be in use in their future.

Marvellous! I particularly like the way the young lady is given the inside wheel so it won't be too taxing for her. I love these old educational films, whether it is how differential works or how to kill a Jap soldier with a club. They are all great.

Bonita explicacion, hasta ahora entiendo bien como funciona un diferencial. Muchas gracias por instruirnos

General Motors explained the concept and functionality of a differential in 9 minutes and 30 seconds while also taking the time to entertain the audience with impressive automotive stunts. A modern day trade school teacher would take well over an hour to cover the exact same information, wouldn't have impressive automotive stunts, and the audience would still be confused.

I’ve always wondered how it works. Glad we got to learn :)

Complicated is nothing when you have a good teacher.

exactly

Well... there are still complicated things. But yes, a good teacher/explanation makes all the difference.

It isn't complicated though

@Domino Pizza а вот и тролль проявился...

I've been learning so much from these videos sinc the one about manual transmisions popped up a couple weeks ago. Thank you to the folks who created these 85 years ago!

I really enjoyed this demonstration its so much easier to learn with the 90s videos than today's century

What an explanation and the visuals I wondered about this wheel problem many times but now I know how it is built . We use these inventions without even knowing the engineering behind it

It’s easy to forgot the amazingness of human ingenuity. Some simple yet ingenious ideas even from 100 years ago. Hell, even a gun is complicatedly interesting to see how it works

Holy crap! This is quality educational content! I learned more here in 9 mins the in 1 semester of shop class! :P

Now take an English class lol

This is before everything people said was,"Kinda, Sorta, What you might wanna..." He said this is a differential. Not, this is sort of like a differential and um....what we kinda wanted to do was allow both tires to sort of spin in a way? So we added more spokes in hopes that like, they would spin freely but not fully independent of one another for the most part...... Anyway, you get the point.

6 if you subtract the motorcycle dudes :P

This is why they don't produce such videos any more. You wouldn't need to go to school.

After searching a lot trying to learn how a differential works, this is the best video so far.

Wow, what a good way to clearly learn how it works!

Still my favourite video on this subject. Hope it stays forever!

I love when their talking about floor height and having a drive shaft on top of the floor and mentions how it would be awkward but fails to mention that 40 lbs of metal spinning at a thousand or so rpm between your legs may not be safe

Video starts with a few establishing shots including one where five guys are all standing on a moving motorcycle that no one is steering, and ends with a shot of two people "logrolling" on the axle of a moving car... Yeah, I'm pretty sure "safety" wasn't much of a consideration for this video... (It wasn't the focus, so why muddy the water with an irrelevant distraction!)

@xtlm true

Eh, back then things were a little bit different. There was a bit of risk with everything so it was just assumed and not worried about.

@Punktak I bet

@lethargicstove20 Just goes to show how our approach to safety has changed. Cars would be much more different if invented today.

This is great It doesn't just explain how it works, it also explains why a differential was necessary in the first place and does it with simplicity 👍😉

​@topdeck55 True enough but not the point. I'd like to see how it works in comparison. Doesn't matter when it was invented in relation to this film.

@Nick H The limited slip diff was only race car technology at the time. It didn't get to production cars until after WW2

@xtlm action lab

@Nick H I believe open-type differential were either the only type, or the most common differential at the time this video was made. As you said, open-type differentials are fine for spinning on roads, but still a issue when driving on bumpy roads or off-road.

@xtlm YT was better when everything had to be under ten minutes.

Love these old videos, you get to understand the whole tho process that led to the final product.

There are so many cool feats of engineering by men and this one is always something I appreciate.

This video blew my mind. Love seeing the science, but also the presentation is perfection!

Wow! This is the type of education we need, getting the clear concept through first before going into the complex maths. Thanks for sharing this video!

I am an engineering major in my third year. Never have I ever had such a thorough explanation of a concept. Screw modern education

What yall think about Lincoln tech?

And the self-inflated egos that teach it...

The reason modern education tends to be different is that the rate of evolution of technology has now exceeded our ability to teach it to someone before what we're teaching is obsolete. Instead, we must teach people how to learn, so they may continue learning at a rapid pace throughout their entire career. ...which reminds me, I have exploded magnets to clean up in the kitchen. My girlfriend's Christmas present isn't going to build itself, and god help her if she's counting on *me* to build it, apparently...

This explanation could be strung out over a week all for the £$.

That is a brilliant invention. And so reliable, I've never heard of someone having to have their differential replaced.

I have. But usually only from impact damage.

Wow, really good explanation, a complicated system explained in most simplified manner..

it has been really essential to start from the simplest context to understand how complicated structures work. and this video did it so well. i hope all teachers adapt this way of teaching.

não falo inglês mas esse vídeo é muito auto explicativo! muito legal

I've studied mechanical engineering and was never shown as clear a video on differentials principles as this one

https://youtu.be/58zdJmumcdA وهذا الشرح بالعربى

@The Sethioz Project u do know all this modern stuff like Google is made by people

​@The Sethioz Project Why is "I don't know" a bad answer? Admitting that you don't know something is a good thing as opposed to simply spewing bullshit. And no, average IQ is steadily increasing by around 3 points a decade. And when you say "clicking away," I don't think you realize how many different things that could be. Sometimes I get a random question about math or science and I look it up. Sometimes I'm texting a friend that I haven't seen in a decade. Sometimes I'm posting some tips on how to do something on reddit. It's about as heinus as generalizing all people in 1937 as "just staring at their televisions."

@The Sethioz Project I totally agree with you brother👍👍

@The Sethioz Project People were always dumb. They weren't smarter back then, they had to rely on others who had the luck to know someone who could teach them. Just like now, the smart people back then were only smart because they made use of the knowledge at their disposal and attempted to learn. Have you ever talked to an old person? Half of them don't even know how to use a phone, or a computer, or fix a single thing in a modern car.

very informative and easy to understand. better explanation than this time, ever!

Still have a doubt. In a left-hand turn as an example, right wheel will have more weight and therefore resistance. Shouldn't it be rotating at a lower speed than the left (inner) wheel then? Obviously this is contrary to what happens during the turn.

This is probably the best video explaining a complex mechanical movement

Think about it. Some machinist, probably in Michigan, worked on making all of this beautiful metal in conjunction with engineers and script writer. It's really impressive.

When you realize even a very old black and white video has better quality than a security camera

Well, you know what John Prine said that what blood looks like in black and white, right?

It’s called film. The resolution is infinite

@DeusExMachina ok but WHY would they spend 66000$ when they could spend 5000? There are other costs involved in terms of maintaining a security system (chiefly, salaries of the people who run it). Also that's not a one time investment, things have to be replaced and fixed, and additionally, cameras that can capture in higher quality themselves are more expensive than lower quality ones. It would simply be wasteful to spend more than necessary on security camera systems, and many smaller businesses wouldn't be able to afford something like that. Also how many different camera feeds are we talking when you give that number?

@Abdi Saniini 4k is excessive though 1080 maybe even 720 would be sufficient

@DeusExMachina ok.. but that's for one camera isn't it? Besides, that is a very significant amount for any business that is not huge, or even for homes.

This is a nice simple demonstration of motorcycle safety from the good old days.

They really should give young minds something to foster curiosity by showing them this old technological development. These developments too a lot of effort to perfect and I believe the demonstration mock up and the tools and blueprints should be in the National Archives. I would like to track down a old rear axle just to preserve a working example of this masterpiece of design !

Best Explanation Ever!! I stumbled upon this video after watching many other animated , highly advanced videos. Thank God I found this.

Funny how they ended up routing the shaft "through" the car anyway, just under a hump - a hump that survived into many FWD cars anyway for the structural benefits it gave.

it is disturbing how informative and easy to understand that was, relative to more modern edu-tainment crap we have now.....

‏ Innate Nature in man recognizes what is good and bad, what is true and false. It recognizes that the Attributes of Allah must be True, Unique, and All-Perfect. It does not feel comfortable towards any kind of degradation of His Attributes not does it qualities to the Creator. Many who became “discontent with God” did so because of the practices of the Church in medieval Europe and because of the claims of “god dwelling in a son” and the concept of the “original sin”. However, they “escaped” into worshipping a new theory called “mother nature” as well as the “material” World. With the advancement of materialistic technology others from different religions adopted the concept of “forgetting about God” and “let us live this life and enjoy it!”, not realizing that they have chosen the worship of the “original god” of Rome: Desire!. ‏NOW we can see that all of this materialistic and secular progress produced a spiritual vacuum that led to complex social, economical, political, and psychological problems. Many of those who “fled” their “religions” are in search again. Some try to “escape” the complexity of their daily lives via various means. Those who had the chance to examine the Qur’an and Islam, proceed with a complete way of life that relates man to establish a purpose for his presence on earth. This is well recognized in the Attributes of Allah and what does He require from man. He does not want man to be enslaved to any false deity: nature, drugs, lust, money, other man, desire, or sex. He provides man with the proofs that He is the One who can redeem so that man can free himself from the slavery to any form of creation and to turn to his Creator Alone. THIS Creator Has Perfect Attributes. He is the First, nothing is before Him, the Ever Living. To Him is the Final Return where everyone will be dealt with in the Most Perfect and Just way. He does not begot nor He is begotten. Those who attribute Divinity to Jesus forget or ignore the fact that Jesus was in a mother’s womb. He needed nutrition; he was born and grew up to be a man. He was trusted with the Gospel as a Message to the Children of Israel: “For there is One God, and one mediator (i.e. a messenger) between God and men (the ‏ Children of Israel), the man Christ Jesus) (I Timothy 2:5). A man-messenger calling his nation not to worship him: “But in vain they do worship me!” (Mathew 15:9). A man who needs to eat, walk, sleed, rest, etc.. cannot have Divine Attributes because he is in need and God (Allah) is Self-Sufficient. * ‏‎‏ https://www.fly-cards.com/en/cards/42 🌹 ‏https://youtu.be/YtQGJ1pS6Fs 🌷 https://drive.google.com/file/d/10Q_WcvkBJDR3XJOqdGuIG3ri-lYA4JIO/view 🌻 https://youtu.be/Ibz2MrW8x6U 🌼 https://discoveritsbeauty.com/mobile/ 🌺

The reason this has i much info is because people didn’t have the internet and if you were watchin this vid back then it was because you didn’t know anything about it no a days people are extremely impatient and hate learning shit they already know so people have to teach others without saying info that is easy to find on google there for leaving out info

There’s still a lot of good edu-tainment videos out there, like anything by Kurzgesagt, Vsauce, Veratasium, and 3Blue1Brown. You just have to look for it.

@Fudge Shizzles First, lets be fair. School does not 'make you' work for someone else. That's what most people do, because working for yourself is extremely hard. But I would say that school is now more about making money, than education. And there are two reasons. One reason is because of students. The reason why so many schools have garbage degrees like Gender-studies, is because hard sciences are hard. Learning gender studies is easy. And we have for some reason, taught people that just getting a degree makes them money, instead of teaching them that learning a school that has market value, makes them money. And the second reason is government. Government has subsidized, and guaranteed loans for bad students, to get useless degrees. If universities had to compete with each other on price, they would be finding ways to reduce costs. Just like stores compete with each other over customers by lowering prices, schools would compete with each other for students by having lower prices. Instead universities spend millions having a yoga center, and climbing wall, and all kinds of ridiculous things. Go look up John Stossel Rising cost of college. All the luxuries that colleges offer, cost money, and that requires higher tuition fees.

Fabulous, all this magnificent brains behind engineering 🥰

*_Теперь и я узнал как это устроено! Спасибо за очень хорошее видео!_* 👍👍👍❤‍🔥❤‍🔥❤‍🔥❤‍🔥❤‍🔥

This just is absuridly easy to follow. I'm speechless

En basit ve etkili düşüncenin, mükemmel hale gelişinin videosu. Harika. Keşke insanlık dehasını Manyetizma içinde kullansaydı.

Who would've thought that this will be useful (and exceptional) after so many years. Good job to the team that made this, it's simply faultless.

Equim i would like your comment but it's currently at 69 edit (2 seconds later) well it just hit 70 so nvm

yes, the authors are apparently dead, but their work lives.

these videos are so simple and explanatory that even a 5 year old could understand how these work because of how simple they explain it. it goes to show how something so simple has become complex over the years but the principle is still the same as it was back then

As mechanical engineers, we're expected to just glance at a differential in action and say ahh! so that's what it does. But sometimes I miss the pedagogy of school education—telling a simple idea and building upon it.

I saved this video ten years ago and It's so useful now I'm a 3D Artist. And it's from 1937 ! Everything is so cool with a good teacher

Much simpler than I expected, easy enough for a 10yr old to understand.

This video taught me basic physics and semi-complicated engineering better than my class can

now go learn all the equations and physics formulas that the engineers had to go trought to design this

@s A mechanic, if you will.

@Adrian Diaz What you are describing seems to be that of an Engineering Technologist.

People don't get more intelligent, we just get to know more things that we use for discovering new ones because intelligent people from the past had make out them.

Never fails to make me smile. Everything about this video is wholesome and cool.

I love how they showed the technology progress. These videos should be made today

Someone said you can easily understand a complex issue once you reduce it to its principles. This movie is spot on on exemplifying this statement.

You had me at the pivot part. That was brilliant.