Feel like a caveman discovering fire.

This is why I prefer older videos - They convey a concept with working examples, and don't patronize the viewer.

first time i've fully understood a differential, very well explained video

All the old instructional/educational videos are very well explained and great visuals to go along with them, not high picture quality, but they make it easier to understand

This is by far the best thing on youtube.

Somebody spent many careful hours designing and machining all the different parts for each iteration of the model. A big tip of the hat to him! I learned about differential gears from The Way Things Work as a kid. This is hands-down the best explanation I've ever seen, and I really enjoyed it. I'm certain that this video clip can help non-mechanically-inclined people understand lots of other mechanisms more easily by showing how to visualize machine components in their most basic forms.

So interesting and so well presented. I wish there were more incredibly-easy-to-follow instructional videos like this in the world!

I'd love to have the history of car assembly summed up in this manner. It explains how things work through the history and order of logic which formed them, and I can much more easily understand logic than I can memorize a bunch of facts.

old is gold. very easy to understand the working of a differential drive.

Beautiful. I can guarantee that any kid would be fascinated by this or any similar concept if it was explained in such a brilliant way.

I love how this old video without CGI, is much better at explaining how a differential works compared to the first 5 videos I've found on youtube.

Great video. If you can explain one thing with very simple terms, then you really know that thing very well.

That was seriously amazing. Very easy to follow and I feel like the instructor was on perfect pace. Definitely recommending to anyone interested in how gears work.

Whoever created this video deserves a cookie. A very large cookie.

The simplicity and building on that was what worked for me. Thanks

The way this video progresses is genius! Such a great teaching tool.

I always love seeing these old school videos, thanks so much! I've always wondered how engineers came up with the differential gear.

I love videos that explain things to me like this. Slow steady and mind blowing.

Absolutely fantastic watching videos like these everyday will make you probably just as good mechanic from a school

starts with the basics and proceeds towards the complex part. excellent video for educational purpose, it is so good that we can make ourselves one model to demonstrate the mechanism

As a mechanical engineer and teacher - This is the best explanation of how a piece of technology works that I've ever had the privilege of watching. Thank you in the name of all those people who want to know and understand. Old School....New school ==>> The right kind of school !! For the person who said they couldn't remember the explanation...I wish I knew how to help you remeber. I think the best thing would be to build the model yourself possibly using the wheels of a toycar some matches paper glue and plastelina. A total of $5 dollar investment and a couple of hours of fun. Get others to do it with you. It can be a great project to do with kids.

Mind Blown at the simplicity!

I always amaze myself on how complicated thing are really a junction of a lot of simple things, this video is awesome thank you

Such simplicity... without cgi.. Awsum

Very simple yet effective way to explain the concept. Great video!

This is a simple explanation to a complex mechanism ... great stuff !

Great explanation - now I know how it works with my wife and I, when one's slow other got to be fast, and also when both pull together we go straight ahead instead of circles!

I'm a major motorhead, but I've always wondered how the differential worked. This video is amazing!!!

This is superbly demonstrated. Today, I learned.

Great .. great and amazing... in those days such a film was made.. hats off for those makers... very simple and easy to understand.. nice models, editing and nice commentary..

This video is so much better in explaining than those animations showing the 4 gears connected to each other!! thx.

Probably the best explaination of something complex I ever had.

Excellent demonstration! Thanks for sharing.

If my professors had this type of announcer voice, I'd be so hooked on to every single word.

no other differential explanation or video explained it this well in this short amount of time..

That was very easy to understand and also interesting. Gonna have to watch the other videos now!

100 times better than new videos.perfect explanation of concept

Just brilliant and simple, as so many old instructional films are.

That video really cleared a lot up for me about this. Thank you.

I love this explanation it's great and crystal clear. Very good video

Use this to explain simple mechanisms to my Robotics Classes. Great video, clear and concise.

It is highly relevant the introduction of the lever concept to the gear concept.

this is the best tutorial I have watched in youtube.

Not good enough? More spokes!

Thank you so much! I'm in a basic automotive class and was so confused. Now I understand. Thank you. :)

Amazing. I've struggled with the concept of the differential for years and this made it impossible not to be able to understand

A very clear explanation of a very interesting piece of machinery

Fantastic! My four-year-old asked me how gears work, and this was perfect.

All of these years later, and this is the best explanation I've ever seen.

OMG this was amazing! Those guys way back when are now geniuses in my book... Great video!

Excellent explanation of the concept!

Great video - very well explained - Thanks for posting it

I honestly had no idea how a differential worked. Now I do. Simple but perfect

This is amazing. I've learned from this than i have in school within the past week.

omg legit i never ever woulda known shit about differentials till i saw this... awesomely helpful thanks!

Fantastic video.Better understanding!!

this is a brilliant video!!! Thanks so much for posting!!

this changed my life, many thanks

i saw this on the national archive online a few years ago. VERY educational.

This is a great video. It helped me understand the differential.

Thanks for cutting the useless bits... It is a great help for those who don't have access to supre fast internet like me : ( Nice tutorial too... very comprehensive. Keep up the goodies.

Pretty clear, great explanation!

The props they are using are awesome!

part 2? this was really good, but just got cut off lol

Absolutely brilliant video on diffs thank you! :)

This is good! A vintage tutorial but very good in explaining the concepts.

I Stumbled here and I am glad I stayed. I feel smarter for having watched this and it only took 5:27 out of my internet meandering.

Problems then desire to solve then concepts then practices then development of the practices then achivement This show was a good example of every achivement

@themanu sick track!!! the samples really add some nice ambience

thanks for showing us this principle...thank you so much...

Wow - I had no idea engineering could be so interesting (if explained simply and well). Thank you for posting - learnt something new today :-)

Teachers of the world...please adopt this man's simplistic and interesting teaching style and depart from your current wretched ways.

Brilliantly explained!

damn so this is how rapid technology evolves. always would love to see a comparison video of back then of car parts compared to now and see how they've evolved and we've been able to improve them to crazy magnitudes.

Excellent gradual development of a hard to explain concept. I actually kinda like the first "useless" 4 minutes, too!

This video is amazing. Every time I forget (and it really happens!) how does differential work, I watch this and every time I wait until he gets to the point. I guess I must have a very little imagination to figure it out by myself :/

That was brilliant. Thank you for posting. *now knows how a differential works*

Excellent video, thanks for the upload.

Amazing! I totally get it. thanks for sharing this knowledge with us.

now i understand why i keep doing 1 wheeler peelers on turns LOL...best video explaining this ever

Greate idea! I would never understand dif. without this film Thanks

beautiful explanation sir, i really had a hard time understanding differentials but you made it seem very easy thank you a lot sir thanks a lot

Awesome video, very simple and informative.

This is surprisingly interesting! Thanks dude!

Great simple explanation !

Fantastic! Just fabulous a video. Thanks a lot.

This is the best explanation on the web... Gotta love the 50's!

Amazing explaination!!!!

Very interesting and educational. Thanks!

Brilliant. Thanks for uploading.

That gentleman learned me good. Nice vid.

Awesome! This was perfectly done. I totally understand it now

Differentials for dummies. Makes perfect sense and is a really cool video. I would like to see more like this.

very interesting & helpful to understand working of differential gear.

In love with Mechanical Engineering ;-)

best video iv watched for years

Great video, excelente explanation! Thumbs Up

Expertly explained!

He was soooo amazing at explaining this. So simple!! :D

I swear I love this video!