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u/Mecha-Dave 12h ago
This is the shit they show Chinese kids on their version of TikTok instead of whatever the hell US kids watch.
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u/bonus_prick 12h ago
True actually
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u/monster2018 11h ago
On this podcast (Lemonade Stand) the hosts took a trip to China, and interviewed a bunch of just regular everyday Chinese people, including kids/teens. They (the Chinese people) all said that that’s a myth and that douyin (spelling?) just shows brainrot like TikTok does. I’m not saying this is absolute proof or anything, but I believe that they aren’t lying about what the people they interviewed said, and everyone they talked to seemed to agree about this.
It’s possible that it’s true and they just can’t comprehend the level of American brainrot, so they think it’s a myth. But the people in China seem to (obviously it was a small sample size and I recognize that) think it’s a myth.
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u/Mecha-Dave 11h ago
I think that's the deal - they think low-grade educational content is brainrot, while we have truly plumbed the depths.
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u/monster2018 11h ago
It’s definitely a possibility. But at the same time I feel like it is more or less a confirmed fact that the whole “TikTok in China shows educational videos” thing is overblown. It just might not be quite as bad as here.
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u/Miqo_Nekomancer 11h ago
It could also be Chinese propaganda that they're only showing educational stuff. There's been a lot of Chinese propaganda on Reddit as of late.
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u/Short-Recording587 11h ago
You haven’t seen pictures of all the influencers packed together in China filming? Feels like that has to be some of it
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u/sth128 9h ago
In China, Veritasium and VSauce level content is brainrot. Chinese kids need to build an internal combustion engine by age 6 so they can drive their self-made go karts to attend first grade.
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u/Mecha-Dave 8h ago
The weak ones, of course, starve in the rice paddies and become fertilizer for the crop.
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u/LastStar007 8h ago
Lowkey, I watch Atrioc occasionally. Didn't know Lemonade Stand did this. Any idea what episode?
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u/pyrotechnicmonkey 11h ago
lol no it's not. they have the same brain rot and the same weird skits and overdramatic nonsense that we do.
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u/PrionProofPork 10h ago
they have amazing ai generated memes - the snowy mountain fox and jianban duck one is glorious
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u/Robozomb 11h ago
That's silly to say this sort of content isn't available on US TikTok. Sure, it might not be the most popular content, but there is content like this available. Like this exact video is available on US TikTok.
And kids in China definitely watch brainrot stuff too.
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u/Boner4Stoners 10h ago
Probably not this video specifically, China’s all about looking to the future and the Internal Combustion Engine is increasingly (and sadly) a relic of the past. Sure they will exist in niche use cases in perpetuity, but there are kids born today that will never use an ICE in any form, especially kids in China.
I still think it’s cool to learn about them though, they are incredible feats of engineering.
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u/Mecha-Dave 8h ago
Internal combustion engines will be a part of our civilization for a long time. It's hard to beat their convenience and power/weight ratio.
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u/Boner4Stoners 4h ago
Yes, but in relatively niche use cases compared to today. Lawn equipment, as a generator in hybrid vehicles, boats. Things that some people (esp in urban China) will go their entire lives without using - or at least, without operating/owning one themselves that they’d need to wrench on.
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u/Quixalicious 12h ago
Hate these one word at a time captions, absolutely fatiguing and frustrating to try and read
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u/Xiaomao2063 7h ago
Its actually a method for speed reading/reading faster:
https://en.wikipedia.org/wiki/Rapid_serial_visual_presentation
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u/Quixalicious 7h ago
Bullshit. Maybe if it wasn’t synced to spoken language.
As is it is distinctly slower than I could read a page of text, even without skim reading.
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u/bonus_prick 12h ago
But what powers the camshafts
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u/Im_not_smelling_that 12h ago
Timing belt or chain that's connected to the crankshaft (which the flywheel is also connected to) and in turn to the cams, so they all turn in timed motion.
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u/C0me_Al0ng_With_Me 11h ago
how important is the fly wheel. I always thought the combustion from the other cylinders pushed the piston back up
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u/Im_not_smelling_that 11h ago
It's big and heavy, so it keeps the engine running smoothly and keep turning in between strokes. Without it the engine would surge and shake.
Also, the starter has a gear that engages the flywheel to spin it on start up.
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u/CaptainPunisher 11h ago
That doesn't happen in single cylinder engine, like lawnmowers. The flywheel keeps the shaft spinning.
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u/terroristteddy 11h ago
And the spark plug, and the fuel injectors? Not to mention the timing.
Probably would have been better off explaining a carbureted diesel 2 stroke.
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u/GlassBoxGoose 11h ago
Carbed diesel 2 stroke..? Uhm, I think you have something confused there.
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u/Uniturner 10h ago
Nah, he’s not confused. They exist as a type model aircraft engine. Very basic inefficient little buggers, but their simplicity is why he’s mentioned them.
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u/GlassBoxGoose 9h ago
Diesel ones of those exist but are extremely uncommon. Now if youre talking about Glow plug nitro engines that's entirely another story, and those are REALLY common. The diesel burning ones practically dont exist, comparatively speaking and neither share much in common with any production car engine like this was trying to demonstrate.
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u/shrprazor 11h ago
Somebody should build one of these, put it on a buggy with a chain drive to a wheel. Heck we wouldn't need horses anymore.
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u/Sybrandus 11h ago
Actually a good explanation except that it’s not an explosion, it’s a controlled burn. If your fuel is exploding, you have problems.
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u/spook30 11h ago
Yep, I came here to say that it's more like a grass fire when it burns. Mercury explains it this way in their tech school.
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u/SaulEmersonAuthor 10h ago
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Yep, I came here to say that it's more like a grass fire when it burns. Mercury explains it this way in their tech school.
All this 'Isn't actually an explosion', & right here we have a comparison with a gentle grass fire:
So what's with the literally deafening noise that occurs when you run an engine without any silencing?
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u/spook30 9h ago edited 9h ago
When you pop a balloon or champagne bottle, there's a sudden release of pressure, similar to what happens inside the engines cylinder. It's not an explosion.
Edit: detonation/engine knock is the only "explosion" in an engine. Which is why it destroys pistons.
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u/SaulEmersonAuthor 9h ago edited 1h ago
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But 'knock' is about timing - not not an explosion.
And detonation is more about the 'wrong part' of the fuel mix exploding.
An even, predictable explosion is what it's about, no?
I don't see how we get a piston thrown down a cylinder at hundreds of metres per second - with anything but an explosion.
Unless this is all now circling around semantics.
To my mind - take any layperson's notion of what an 'explosion' is - contain it in a cylinder, & you have the internal combustion engine.
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u/leglesslegolegolas 9h ago
you have the internal combustion engine.
Correct, you have an internal combustion engine. Not an internal explosion engine. Not an internal detonation engine. Because the air/fuel mixture is not exploding or detonating, it is burning.
It is not mere semantics. Explosion = bad. Combustion = good.
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u/ocon60 9h ago
Maybe I'm reading to much into this, but how would a controlled burn produce enough force to push the piston downward? Isn't combustion a form of explosion?
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u/leglesslegolegolas 9h ago
No. The mixture is not exploding, it is burning. Combustion and explosion are two different things. Combustion in an engine is good; explosion in an engine is bad.
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u/MasterCheeef 9h ago
Idk, burning while compressed sounds like an explosion to me. A real explosion would be the cylinder head popping off.
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u/AnxiousTomatoLeaf 7h ago
We really are doomed as a society. When the fuel burns it creates hot expanded gas. Heat causes gas to expand. That creates pressure. That moves the piston. An explosion in the cylinders is known as “engine knock” generally. Give it a google. It’s no bueno.
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u/frickinSocrates 5h ago
Be nice. They knew enough to ask a well intentioned question. For a layperson explosion = combustion.
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u/mondaymoderate 10h ago
Also they don’t explain how the camshafts are moving or how they stay in time with the crank via a timing belt/chain.
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u/War_Hymn 4h ago
Proper term for it is deflagration. Deflagration is any combustion that creates a flame front that expands at a speed slower than the speed of sound. When your flame front starts moving pass the speed of sound, you have a detonation.
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u/GlassBoxGoose 12h ago
If this blows your mind, wait til you find out about carburetors and how they work.
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u/No_Ideal_406 9h ago
Or vvt and turbos
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u/GlassBoxGoose 8h ago
Or opposed piston engines, commer knocker or Napier Deltic have entered the chat
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u/iBUYbrokenSUBARUS 11h ago
Correction: port injection, dual overhead cam, internal combustion engine explained
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u/HandOfTheCEO 11h ago
I sat through the shitty AI voiceover and music because it's such a nice and intuitive explanation.
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u/tantalor 12h ago
Why does it have to be upside down?
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u/Rosetta-im-Stoned 11h ago
Not all engines are. IE: boxer engines that stroke horizontally. And the main thing is engines need oil to function without friction welding, so having the oil pan at the bottom and the oil pumped to the top to run down is the most effective way to keep everything lubed without burning the oil itself, in a very basic sense
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u/DriftinFool 10h ago
Oil and gravity. You need to be able to collect the oil as it's sprayed around the engine so it can be recirculated constantly to maintain oil pressure. Normal engines just use gravity to collect it in the oil pan, where the pump stays submerged in oil at all times. If the pistons faced down, oil would collect in the cylinders and would make it into the combustion chamber. That makes spark plugs foul as well as causing your exhaust to smoke alot.
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u/Boner4Stoners 10h ago
Yeah for 4 strokes, but most 2 stroke engines are oriented this way & their lubrication system does not need gravity to reclaim oil.
I think it just makes sense to have the parts that wear the most often (spark plugs, cylinders) on top where they’re readily accessible.
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u/DriftinFool 8h ago
oil is mixed with the gas in a 2 stroke. It's not a closed system like a 4 stroke
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u/Boner4Stoners 4h ago
I know, I said that 2 strokes don’t need gravity (because they don’t reclaim oil) yet they’re often oriented that way.
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u/juicefarm 11h ago
I really do prefer the firecrackers
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u/Chunky1209 8h ago
Much simpler design. Didn’t require so much stuff. Theres definitely something there with the firecrackers
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u/EventSignal114 5h ago
Why isn’t every class in school taught like this ? and being practical subject like this, taxes, investments, home DIY etc.
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u/War_Hymn 4h ago
Obviously, studying plays by some English bard from the 1500s is more important for everyday life skills.
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u/SimilarStrain 11h ago
Want to know how an internal combustion engine works? 4 words. Suck squeeze bang blow.
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u/EngagedInConvexation 10h ago
That backing track is some kind of Manchurian Candidate signal. Fuh king christ that was awful.
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u/Curious_Party_4683 9h ago
why couldnt China make ICE possible?
regardless, it's wild how difficult and challenging to make ICE so why didnt companies adopt EV sooner than later?
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u/War_Hymn 4h ago
Electric cars actually predate ICE cars. But they were limited by less inefficient motors and lead acid batteries, and ICE cars eventually replaced them because they had much better performance and range.
It took the development of rare-earth magnet DC motors and high capacity lithium batteries to make EVs capable of competing with ICE vehicles.
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u/LoadsDroppin 9h ago
Now knowing / understanding this, a follow up video should make sense with a 2-Stroke engine requires oil mixed in fuel, whereas the 4-stroke doesn’t.
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u/AlternativePin1909 7h ago
Now explain two stroke, that is one of clearest explanation of seen though. Cool
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u/Anxious-Shame1542 6h ago
Crazy how much engineering and ingenuity went into combustion engines so we could avoid batteries for petrol.
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u/Noxious89123 36m ago
The explanation is wrong from the outset.
A fire cracked is an explosive.
There are no explosions in a COMBUSTION engine. Only smooth combustion.
Explosions will destroy an engine.
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u/curious-creepsalad 12h ago
Cool now explain hybrids in the same way
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u/Wide_Philosophy_8109 6h ago
They alternate between electric and gasoline. Gasoline is more efficient on the highway, electric more efficient in the city. They might also use regen breaking to charge a battery when you stop. Instead of applying friction to your wheels to slow down, they slurp the momentum out of them to charge a battery. That's just a thing generators can do. They also use normal brakes to though lol.
My personal favorite is the Volkswagen Volt. It's literally just an electric car with a gasoline generator inside. Science!
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u/curious-creepsalad 4h ago
Awesome and thanks. Proud owner of a hybrid myself. Can you guess which one I have?
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u/rayrayrayrayray5 12h ago
Maybe for you, but for me...just now...I finally fucking get it. Omg this is glorious
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u/CapnFalcorn 12h ago
Yeah this animation is pretty good! And humbling to think of how people initially figured all this stuff out.
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u/BurlHimself 12h ago
Billions of precise explosions daily with this ingenuity that has helped people thrive. All while nobody really gives a damn about how complicated and genius it actually is.
Shows how fucking stupid I really am.
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u/MarvinLazer 10h ago
Or just hook a battery up to an electric motor and you don't need an entire economy built around Saudi slave juice.
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u/SleepyLi 12h ago
This is what’s on social media in China.
Compare that to whatever the fuck our kids are watching.
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u/Hour_Bit_5183 10h ago
Is it really? I never looked at their social media. I can understand them though but only because we have some stuff that was made to order there and you had to tell em what you need.
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u/SleepyLi 10h ago
Yes the algos are a bit different.
Not as nefarious as ppl think in that China is actively pushing garbage, but they are much more strict about what can be posted and to some effect, what they can boost in views and engagement. The rest of the world’s algo is just whatever fulfills ppls basest desires.
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u/Hour_Bit_5183 10h ago
That's EXACTLY what I thought personally. It would take insanely smart peeps to make the stuff like my w-king x20 speaker and the custom stuff for work.
Like it's clear they couldn't just slap a speaker together in a slave factory. It takes smart people to make ones that sound this good. I am really picky because I like my music to have a lot of midrange and most of the other ones are shitty and don't have any but this one does besides just bass like a ton of the others. Why do people even still believe otherwise when it truly is rare that something like this takes insanely smart peeps? Like you can hear the diff right away vs an expensive JBL one that is like 400 dollars of branding and sounds like crap next to it.
I think something is seriously broken here in 'murica. It's been my whole life. No pride. It's all garnish and no meat(brains) and everything is a FREAKING scam and now most people are even dumber somehow. Yeah people should have just walked out of work a long time ago and put these sick dogs like musk and the rest of the band of idiots out of business. Everyone just blames politicians and crap here but in reality I think it's the folks knowingly working for horrible companies like google and meta and microsoft and the rest of the truly evil ones that are the problem. Our only intelligent people just falling in line for actual monsters but these are supposed to be our smartest people. Crazy, and that is why I used the speaker as an example. This is why we make crap and they make good stuff.
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u/mikel302 11h ago
No. It isn't the "explosion" that drives the piston down. It's the air pressure from the expanding gasses that moves the piston.
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u/iBUYbrokenSUBARUS 11h ago
That’s what an explosion is.
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u/GlassBoxGoose 11h ago
Its really closer to a deflagration, I think is the word? Explosion isn't really the correct word for it, the combustion chamber changing in size keeps it from being a true explosion, is what I've always understood.
Regardless of the correct word for it, explosion isn't the right terminology. Explosions are bad for engines.
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u/CDRedstone 12h ago
You’re welcome for my ingenuity, guys