Around The Corner - How Differential Steering Works (1937)

That was a great video, thank you! Knowing basic gear mechanics helps a lot in understanding how cars function. This 1937 video about differentials is also enlightening: ▶ this video Why is it that old tutorial videos are so thorough and informative?

in “Five Hundred and Seven Mechanical Movements” · View on HN

All of the old US gov't/mil funded education films are pretty good. * ▶ this video * [link] * [link] * [link] * [link] Etc.

in “1962 Military Innstructional Video on Magnetic Cores” · View on HN

Similar videos about cars: Chevrolet Suspension (1938): [link] How Differential Steering Works (1937): ▶ this video How A Transmission Works (1936): [link] And as a bonus, an explanation about transistors from 1953: [link]

in “Hydraulic Steering – Principles of Operation (1956) [video]” · View on HN

I would maybe start with the individual components. How a differential works: ▶ this video There are a number of videos of transparent engines: [link] But if that doesn’t work, searching YouTube for “how an engine works” should give lots of content. Once you’ve figured out how the engine turns the flywheel, you can investigate how the flywheel applies different speeds to the wheels via a transmission. Manual transmissions are simpler, so I would start there: [link] then figure out how the clutch fits in. After that, you can move on to torque converters (coolest component imo, basically a fluid coupling) and automatic transmissions, which can be a mind-bender. Feel free to reach out to me at pc.peterso at Mail of g dot common TLD, happy to share what I learned and save you some time. Lastly, there is a wealth of tidbits on Engineering Explained and howacarworks.com, although the latter goes into far more detail than you probably need.

in “Ask HN: What practical skills do you recommend?” · View on HN

How guns work: [link] How a car differential works: ▶ this video Downright the best zero-to-programmer course in the world. Wish I knew about it when I was starting out: [link]

in “Ask HN: Your favourite tutorial for total beginners?” · View on HN

A few months ago, this video [0] from the 30ies explaining a differential was posted on HN. It also is extremely interesting to watch. Minute 5 is very illuminating. [0] ▶ this video

in “Five Hundred and Seven Mechanical Movements (1908)” · View on HN

This kind of mechanical device where there are more than two shafts are always cool. Classic video about differentials from 1937 (!): ▶ this video

in “Honda will use GM’s self-driving technology, invests in Cruise” · View on HN

Videos were very instructive back then too. At some point, we started to prioritize form over function. E.g. ▶ this video [Around The Corner - How Differential Steering Works (1937)]

in “Space Transportation System” · View on HN

Wow these are really great thanks for sharing. Heres a couple of others that I like. Differential Steering: ▶ this video Turbo Encabulator: [link]

in “Walt Disney's MultiPlane Camera (1957) [video]” · View on HN

Here are the key takeaways for me: "Thanks to that differential between your axles, an AWD car will send your engine’s power down the path of least resistance—the wheel with the least grip. Where a two-wheel drive car can only choose between two wheels, an AWD system looks for that least resistance across all four wheels." "4WD works by locking the front and rear axles together, splitting torque 50:50 between them. This provides great traction, but a vehicle locked in 4WD cannot safely be operated on dry pavement because its front and rear axles are forced to rotate at the same speeds." I remember being scared when I bought my first 4wd vehicle, a '91 Toyota pickup. I knew I shouldn't have the wheels locked in 4wd on dry pavement, and I was worried about going from snowy roads to dry pavement. When I moved on to an Outback (AWD, not 4wd) I wondered why I didn't have to worry about transitioning between slippery roads and dry pavement. Now I understand. There's also a great video from 1937(!) that shows why we need differentials, and how they work. Here's a direct link to the video if you're going to skip the article: ▶ this video

in “4WD vs. AWD. What's the Difference?” · View on HN

This is great. As for the criticism that a lot of the content is old, most of the core concepts can be explained better with older tech as it's simpler. This allows you to focus on what is happening and leave the extra details about what technology a part or process has for a case by case basis. ▶ this video is a great example of this. Saying that, an article on direct injection, common rail diesels, efficient turbo charging, variable valve timing, MAF VS MAP EFI would be worth considering.

in “How a car works (2012)” · View on HN

I am surprise I have not seen this, with how many times I have run across the Around The Corner - How Differential Steering Works (1937): ▶ this video

in “3D Printed South Pointing Chariot” · View on HN

▶ this video is the non-clickbait-title version, hosted by the channel with other popular recovered films in the same genre.

in “How to Use a Differential Analyzer” · View on HN

I find this to be true. It seems like there was more focus on the very, very basics. Now there is a ton of filler and the content gets lost. E.g.: ▶ this video

in “Why are Soviet math textbooks so hardcore in comparison to US textbooks? (2017)” · View on HN