Wow, those marker drawings have gotten incredibly life-like.

@ThisIsTaco1

9 жыл бұрын

Nhan Hoa Le Guy that doesn't get friendly sarcasm spotted! Wow! Wew! No one cares!

@ThisIsTaco1

9 жыл бұрын

Horza Redfield He even deleted his comment, leaving mine as mysterious

@AnkaaAvarshina

9 жыл бұрын

ThisIsTaco1 Well what did he say anyway?

@ThisIsTaco1

9 жыл бұрын

"hater spotter! wow! wew! no one cares!" -Nhan Hoa Le (including the spelling and grammar mistakes)

@AnkaaAvarshina

9 жыл бұрын

ThisIsTaco1 Good. Keep this comment up. Let everyone see their stupidity. And you, mate, kudos to you.

I love these types of videos where the concept is shown in a real world object rather than only pictures. Awesome vid.

@ltheirresolute

9 жыл бұрын

cjua2803 I liked the fact that it was about bikes :)

@blackconfucius4974

9 жыл бұрын

Lol I just saw you on an iTwe4kz vid

@dlwatib

8 жыл бұрын

+Bacon.Is.A.Good.Calory.Source I like bacon.

@NoConsequenc3

8 жыл бұрын

+cjua2803 to be fair, a lot of physics stuff is hard to do hands-on :P

@leif1075

2 жыл бұрын

Hiw do ypu know just becaise the front wheel turns to the left that the rest of the bike won't follow suit and turn and fall to the left too?

Blimey. Never thought about this before. Smashing video :)

@xayer5

9 жыл бұрын

Mumbo Jumbo Hi Mumbo :D

@SCRedstone

9 жыл бұрын

Mumbo Jumbo Ermahgerd Mumbo watches physics videos!!!!!!!

@FlesHBoX

9 жыл бұрын

Mumbo Jumbo Always love seeing youtubers I watch regularly commenting on other, unrelated channels :)

@NjniaVanDerWald

9 жыл бұрын

Mumbo Jumbo i got confused for a moment seeing your comment here. i got used to see it under minecraftrelated stuff that i never expected to see it elsewhere. :D

@NjniaVanDerWald

9 жыл бұрын

Mumbo Jumbo i got confused for a moment seeing your comment here. i got used to see it under minecraftrelated stuff that i never expected to see it elsewhere. :D

I'll never be able to ride my bike the same way again (meaning I'll be staring down at all the physics magic and probably crash into something)

@rangarolls6018

8 жыл бұрын

+Archit Bhonsle just click him and check his subs

@shanetennyson8810

8 жыл бұрын

I am hoping you will put a video up for that 😀😀😀

@udayapalihapitiya7972

3 жыл бұрын

I saw another explanation of about this. It is a different way. kzread.info/dash/bejne/iZiGscmch7PXmZM.html

no bike were harmed in this video.

@placeholderforfuturehandle

9 жыл бұрын

ROG ROG ROG

@AbarajithanGnaneswaran

9 жыл бұрын

AlexandreHimself LOL

@KetchupReturns

9 жыл бұрын

AlexandreHimself Grammar rules were harmed making this comment.

@AlexandreHimself

9 жыл бұрын

im french sry, where is the fault ?i can see it. Thx

@AlexandreHimself

9 жыл бұрын

cant

So we can figure out electron orbitals, special relativity, and determine the first few seconds of the universe, but we can't figure out bikes. Excellent.

@SuperAdnan117

9 жыл бұрын

Whoever made the modern bicycle was a true genius.

@DFX2KX

8 жыл бұрын

+Adnan Bhuiyan there where a bunch of people involved. But it really does show the power of trial-and-error.

@DragonXero

8 жыл бұрын

+DFX2KX An understanding of physics isn't necessary when you can just keep trying until you don't taste asphalt. I love that something so simple still confounds even the most understanding of minds. It means we're still learning, still discovering. We get that atoms, once a mythological component molecules, which were once a mystery of cells, are just another piece of the puzzle. Now we're talking quarks and gluons, but who is absolutely certain that these are even the true building blocks of matter? Maybe there's something smaller. Maybe even the planck length is larger than the smallest we can get? That's what's exciting about real science. We get to where we think things have reached the limit, but later science proves us wrong. I really hope that, within my life, quantum effects will be proven effective only to a certain extent. I want to see science as I understand it debased and ridiculed because discovery is glorious. Maybe the LHC is the ultimate discovery of science, but maybe, and hopefully, they are the falling apple to Hawking's singularities. I hope that someday soon, we'll realize that "wormholes" are just expensive shortcuts to our nearest stellar neighbors and that the future of science makes current researchers frustrated. That's the real hope of science: That we can never figure it all out. The quest is more important than the understanding. Discovery is far more exciting than understanding, and I doubt anyone would argue that. A complete, unified understanding would lead to boredom. I hope that we, as a species, never understand everything. We're a curious species, and understanding it all would destroy us, culturally. I hope we can never fully get the universe, but rather understand it as best we can to explore. We're a curious enough race to detonate nuclear bombs in Nevada, despite the very real theoretical possibility that we could ignite our atmosphere with these extremes . I think we're curious enough to find out whether quarks are the ultimate baseline of our reality, or just another step. I, for one, remain skeptical. We thought molecules the base, then atoms. Now, subatomics are our baseline? I call BS. The Planck length was once our limit, but why do we limit ourselves the way we always have? The reality is, maybe quarks and gluons are our lower limit. Maybe we've hit the lower possibility to read our universe. Maybe we have more to go. I'm sure that at some point, scientists concluded that optical observation of atomic particles was the smallest things got. Maybe the LHC isn't going deep enough, scientifically. Maybe we're beyond what we thing we are already. Maybe we'll see with science moving forward faster and faster each generation. I want to see next generation showing that, for quantum understanding, our current physics work, but at smaller scales, it's just a crap-shoot. Science as we know today is pretty solid, but who's to say that the calculations that land us on Mars is enough to get us near the closest star? Maybe there's more to it. Maybe wormholes work in a different layer of physics. Maybe we only get what we get now, and we're Newton's answer to the future. We get what we get, but that is not enough.Science is awesome, but the most beautiful part is that we know we're not perfect. Someday, someone even more brilliant than Stephen Hawking will come along and we'll see far deeper understanding. Until then, we ship rockets off using Newtonian and Einsteinian physics. They work, for now. In all practicality, that's all that matters. If we can get a group of Astronauts to our nearest planetary neighbor, who cares?' To conclude, our understanding is plenty. We get that what we know is smaller than what we could know, and that's great. We need to realize that we have a long road ahead. This means we won't give up. We need to keep fighting for more understanding, and that's a good thing. Someday, cargo ships will be filled with questions about quantum teleportation, but we'll still be sending people off to the asteroid belt for riches.Still, the question will be "are Higgs Bosons the ultimate small particle?" The answer will probably be "no" someday. For now, though, the answer is "yes". We need to work on understanding that and moving from there. I hope we find something more soon. We're the only sapient species we know of so far, s it would be good to keep trying..

@TristanBomber

8 жыл бұрын

Dragon Xero Beautifully written, and I agree wholeheartedly!

@steveman28

8 жыл бұрын

+TristanBomb But we still can't get electron orbitals either...

Wow, after many years studying how the universe works and other complex subjects I just learned that something as simple as a bike is way more complicated than many of them. Thanks for reminding me that some things we take for granted can be the most challenging to understand.

In Soviet Russia, the bike rides itself

@TheMinipasila

9 жыл бұрын

***** Totally appropriate comment.

@SuperExodian

9 жыл бұрын

***** so you're saying this video is false information and the actuall explanation is russian magic? ok, moving to russia asap

@LarryTL

9 жыл бұрын

Saifthebest01 ( ͡° ͜ʖ ͡°)

@susangoaway

9 жыл бұрын

Bart De Bock It's soviet not russian. Also: In Putin's Russia, there is no bike.

@rebelScience

9 жыл бұрын

***** Yes, there is Topol-M.

Damn, finally a really good video on actual physics. This is what I've wanted to see on this channel

@wixxed

9 жыл бұрын

bassisku Yea this channel never did physics videos before! Finally, actual physics!

@wood_croft

9 жыл бұрын

bassisku I totally agree.

@Tofofoso

9 жыл бұрын

Actually, (almost) all of this channel's videos are on physics, what you call "actual physics" might refer to classical physics or mechanical physics, but that doesn't mean that the expansion of the universe or quantum mechanics aren't physics. Just to point that out, no intention of being offensive here ;)

@wildgoosespeeder

9 жыл бұрын

bassisku Hate to break the news to you but physics is in full force 100% of the time. No pun intended. It's more than just about what you are required to learn in high school.

@wood_croft

9 жыл бұрын

Tofofoso I'm not talking about modern physics. The last 4 videos on this channel weren't focused on physics: "How To Detect A Secret Nuclear Test" - The physics presented is trivial. The video is more about international politics than anything else. "Upside Down Mountains in Real Life" - This one is ridiculous. It's just a clickbait without any meaningful physics or mathematics. "Why Raindrops Are Mathematically Impossible" - Another clickbait. Tries to "prove" raindrops are impossible by using wrong assumptions. It's just another version of the bumblebee argument. "How to Subtract By Adding" - It's about math and (secretly) computer science. No physics at all.

My Bicycle just got a Beer from the fridge and is now going out for a ride to pick up some sliders

Bikes stay up because unlike living things they do not need sleep.

@ekinebobmanuel4551

6 жыл бұрын

Actually, I knew a bike that fell asleep. It was two tired to stay up.

@ConjointVR

5 жыл бұрын

No one appreciates how satirically deep this is. This is god tier meme taste.

@rupinderscurrypot7614

4 жыл бұрын

@@ConjointVR we are, were making jokes out of it lmao

I knew this, but not in your physics terminology. :-) Great video as usual.

I loved watching this bike ride itself. Thanks Henry. You should also talk about how the unicycle and segways are possible to ride. (I've vervet ridden either of them.)

I watched this explanation in scishow! :D

@woodfur00

9 жыл бұрын

KL Havoc/Pyrex92 Really? I must have missed that one. **Goes off in search of redundant SciShow video**

@Pyrex92

9 жыл бұрын

It was in a SciShow Talk Show episdoe. The most recent one I believe.

@UnicornStarShip

9 жыл бұрын

KL Havoc/Pyrex92 I did too but didn't quite understand it on there, this video really helped me to understand the phenomenon better. I guess I needed the visuals.

@ryanpiccolotti

9 жыл бұрын

Same

@tggt00

9 жыл бұрын

Silvrix Magenta Honestly I understood it better there.

Exactly what I was looking for - I’m trying to build a motorised bike that can stay upright when moving the same way a push bike does and this was exactly what I needed. Cheers!

Clearly it's alien technology, moving on...

@SterlingCat03

9 жыл бұрын

Normal people: It's a combination of physics not yet completely understood. The History Channel: the only explanation is aliens giving human a magical technology to keep up a clearly unstable system.

@Richie_Godsil

9 жыл бұрын

Kitty Kerman if not aliens, then it's obviously ghosts...

@4O4_3RR0R

9 жыл бұрын

Richie Godsil If not ghosts, then what?

@LolsTheGreatAndPowerful

9 жыл бұрын

Richie Godsil m8, it was god, duh.

@videogyar2

9 жыл бұрын

Richie Godsil Nah man, reptilians. They are everywhere:O

I always enjoy your videos! I just have a couple things to add that might help people search for more info on this. In the motorcycle industry the angle of the steering axis is called rake. The distance from the front tire contact patch to the steering axis is called trail. changes in rake and trail are pretty well understood in the motorcycle industry because it uses different variations in steering geometry to produce different handling properties for different styles of motorcycle. Might make for an interesting follow up video:) keep up the awesome work!

You know, I understand general relativity. I love videos on paradoxes, wormholes, time travel and such. A video on bikes blew my mind. Great work MinutePhysics. Great work.

@wood_croft

9 жыл бұрын

SonicRooncoPrime How much of GR do you really understand?

@SonicRooncoPrime

9 жыл бұрын

Enough that I'm not lost by any videos I see or discussions I take part in.

@wood_croft

9 жыл бұрын

SonicRooncoPrime So you mean at the popular science level? Most physicists would say that you don't really understand GR unless you can at least solve Einstein's equations and understand most of what is in a textbook about it. For example: xxx.lanl.gov/pdf/gr-qc/9712019v1.pdf In the abstract it says: "... introductory general relativity for beginning graduate students in physics".

@SonicRooncoPrime

9 жыл бұрын

I've started reading that. I'm liking it so far!

@General12th

8 жыл бұрын

+Wood Croft Is there a difference between the *principles* of GR and the *mathematics* of GR? For example, I can understand air resistance without knowing that F = 0.5 * C * rho * A * v^2 . The equation gives me a quantitative understanding of air resistance, but it doesn't provide a qualitative understanding. My favorite qualitative description of GR is: "Stress (mass, energy, momentum, fields) tells spacetime how to curve, spacetime tells stress how to move." Do I understand GR yet?

But how does this explain the 3 flat tires I got last week?

@Wifi_Cable

9 жыл бұрын

BestServedCold May want to ask the jerk who keep throwing nail in the road about that one.

@paulj6662

9 жыл бұрын

Ciccarello also it is almost always in the rear tyre, because the front tyre just flicks it up for the rear to get the tip, lucky really as a flat front is far nastier than the rear.

@Wifi_Cable

9 жыл бұрын

Paul J Interesting point of view.

@paulj6662

9 жыл бұрын

Ciccarello the result of 45 years of motorcycling in / around London.

@NjniaVanDerWald

9 жыл бұрын

BestServedCold there is actual a very easy explanation to it. but before i start i have to say that i am already very tired, because i didn't got much sleep last night. even though and against better knowledge i am still awake and commenting under youtubevideos. funny thing is i will have to wake up early. yay! And you have read so far to learn about the cause of flat tires, but i am not gonna tell you and leave you unable to sleep the rest of the night anxious about my answer. Ha! Take that!

But which is the better song about bikes: Queen's "Bicycle Race" or Kraftwork's "Tour de France?"

@zelial3

9 жыл бұрын

This Exists Sons of Science "Motherfucking Bike"

@error.418

9 жыл бұрын

This Exists As long as you don't count Flobots "Handlebars"

@lightningslim

2 жыл бұрын

Don't forget the "Pushbike Song" by The Mixtures!

I'm now imagining a bike as a sentient being. shit

@pwnedbyfishies

8 жыл бұрын

everyone that bikes a lot already does

@tousifsiddiqui7281

8 жыл бұрын

As someone who rides more than 3 hours a day on the trail, I can tell you there were times when my bike corrected me from crashing into rocks and obstacles. I was amazed initially but now im just used to bikes taking control once in a while.

@pwnedbyfishies

7 жыл бұрын

***** no, u

Wow!!! One of my childhood question only answered now. I always felt that the angular momentum isn't the complete answer. Thank you so much :)

I was literally thinking about this the other day, and that was a great explanation as to why it works. Great video

I SWEAR I WAS THINKING ABOUT THIS YESTERDAY!!!LUMINATI???

@BlijeGubGames

9 жыл бұрын

Goku AKA Kakarot I was thinking about this today even before this video :O!?!?

@Hjaelmedhorn

9 жыл бұрын

Goku AKA Kakarot No, just another Baader-Meinhof phenomenon. Nothing to see here citizen, move along.

@wtfduud

9 жыл бұрын

Goku AKA Kakarot Out of all his viewers, at least one was bound to have thought about this recently.

@drink15

9 жыл бұрын

I'm going to think about it tomorrow.

@The0007rishabh

9 жыл бұрын

Goku AKA Kakarot luminati level is OVER 9000!!

Enjoyed this more than the Veritasium vid that brought me here.

2:34 correction: the steering axis lying in front of the point where the wheel touches the ground also is reversed because of the way the bike moves. you can see this by pushing the bike backwards at a low speed to eliminate the gyroscopic effect and the bike still remains unstable.

@PythonPlusPlus

Жыл бұрын

That doesn’t change. It only matters that the point touching the ground is closer to the centre of the bike.

I love this kind of thing. Simple machines that are easy to understand, but no one knows how they work. Brilliant video; very well explained.

I love all your channels! You always have such cool & interesting videos.

God I fucking love you!!!

@drink15

9 жыл бұрын

And God loves you!

@1Ewery1

9 жыл бұрын

I don't think that's what they meant...

@Mikineitor

9 жыл бұрын

drink15 No I don't. I hate cats.

@UnburnableCow

9 жыл бұрын

1Ewery1 Nah man, he definitely meant God is the one he loves

@andrejparunovic8917

9 жыл бұрын

A Cat God loves you two

No bikes were harmed in the making of this video.

I've seen other explanations of this but I think this one is the most clearly laid out that I've seen. Thanks!

OMG this explanation is actually greatly thought and well exposed and so correct! Giant Thumb Up for you!

What About DOUBLE DECKER Buses? How do They stay up?

@spheal4754

9 жыл бұрын

It has 4 wheels.

@only20frickinletters

9 жыл бұрын

Hypnos www.nwbus.com/inventory/photos/DSC01026_6.JPG

@only20frickinletters

9 жыл бұрын

Hypnos Better yet: www.bellinghamlibrary.org/home/wp-content/uploads/2013/11/Magic-school-bus.jpg

@ultimarad3866

9 жыл бұрын

Cheif Wolf Magic, didn't you know?

@tonyg9451

9 жыл бұрын

Cheif Wolf it's two bikes, side-by-side, welded together...pheesh

Wow, I think with this video you may have inadvertently made the best explanation of counter-steering yet. Basically, to turn a bike round a corner you steer the handlebars very slightly the other way to cause the bike to lean into the corner. It's just the inverse of the rider less stability scenario, and follows all the same principles.

@d4slaimless

2 жыл бұрын

If you steer the other way bike is going to lean to where you steer. You body though will keep forward momentum so it will shift balance to other side. So you naturally turn the wheel back to keep balance and make a turn. Alternatively you can turn the wheel and tilt your body to the same side and make a turn without counter-steering. Centrifugal force helps you out of the turn anyway.

I've wanted to know this for so long. Omg you don't know how happy I am to finally know. Seriously, I am so happy. Thank you!

hey! I love the formulas in the video. it's brilliant. for people who don't understand them, it's just some crazy but nice looking blabber, but for people who do have an idea it means the world. seeing this really help me understand better.

The gyroscopic effect involves Angular momentum! lol :)

@Make-Asylums-Great-Again

3 жыл бұрын

There has been test with wheels that counteract the gyroscopic force created and the bicycle still stays stable. Citation: kzread.info/dash/bejne/i4unrZirndaxg6w.html

@leif1075

2 жыл бұрын

Yes why on earth is thst funny at all? That's to be expected..

Bike Physics is already hard AF, imagine rocket physics...

@temeweckis

8 жыл бұрын

If you think this is hard, then yes

@General12th

8 жыл бұрын

Nah. Rocket science is easier than this.

Such a seemingly simple idea yet so many unknowns. So much more goes into riding a bike than you think. Awesome video examining the factors and debunking the misconceptions!

I've searched for this answer but have never seen such a comprehensive explanation. Thank you!

I love it! There is so much we know about the world, but sometimes the seemingly simplest things allude our understanding.

Here from Veritasium :)

awesome. I always thought it was strictly the gyroscopic effect that kept it upright. Great vid!

This movie makes teaching child riding bike a lot easier. Just show them that bike rides itself with speed applied to it. Makes them understand how easy it is. Great vid!

Are you kidding me? Science doesn't know what special combinations of variables make a bike stay up on its own? Well that has to be solved!

Hey we live in the same city. I never realized that :P

All things we knew so far were destilled in this moving picture (with sound!). Good summary - including the things we don't know for sure. Great!

I just love your vids, quality never drops and it's always interesting :D

Well that was 100 times more complicated than I was expecting :P

I totally want to go send my bike after random people now

Love seeing my home town featured! Great video in general too!

Wow what a video, I would've never thought. Thanks for sharing this, I learn something new every day

I did not know that bikes can ride them selfs

Angular momentum and gyroscopic precession are critical to keeping a bicycle balanced. To see why this is the case, see what happens if the brakes lock the wheels in place while the bicycle continues to move forward by skidding along the road.

@OneWorldLikeItOrNot

9 жыл бұрын

Eugene Khutoryansky Perhaps a better test would be to put the bike up on another set of wheels (skateboards) that allowed the regular wheels to spin freely, spin the regular wheels, and send it off. It seems like angular momentum plays a part the question is how big a part.

@squidbait1396

9 жыл бұрын

Eugene Khutoryansky guess you missed the part where he mentions a design for a stable bike with the angular momentum component removed?

@garyermann

9 жыл бұрын

Eugene Khutoryansky I don't buy that argument. Any moving vehicle (train, car, bicycle) loses control when it transitions from it's usual no slip rolling friction (which is actually static friction) to skidding (kinetic friction). You wouldn't say a loss of angular momentum or gyroscopic procession is what causes a car to skid out when it loses traction. The same thing is important in a bike, the nature of its interaction with the ground is really important in staying stable (as Henry showed). Skidding a bike vs rolling it changes that interaction immensely. Based on your conjecture, you could lock the wheels of the bike and then attach two similarly spinning objects to the bike that aren't contacting the ground and it would stay upright. I haven't seen it done, but my hypothesis is that it wouldn't work.

@EugeneKhutoryansky

9 жыл бұрын

Gary Ermann There are two different issues. One is the loss of control over the direction of motion, and the other issue is the bicycle falling over on its side. Although the car losses control of its direction when it is skidding on a slippery surface, it does not fall over on its side.

@EugeneKhutoryansky

9 жыл бұрын

***** The fact that there are other components contributing to an object's stability does not mean that gyroscopic precision is not one of the significant contributing factors.

Thank you very very very very much for this video. Keep up the amazing work!

Big return to form, this one. Really enjoyed it.

"VERITASIUM"

I bet all those sciencey scribbles were legit and related to the topic, huh?

@aaroncameron1494

9 жыл бұрын

Would be cool if they were but I saw lamda which I think is wavelength.

@kuzcoII

9 жыл бұрын

Aaron Cameron @3:06 you can see lamda being defined as the steer axis tilt.

@amihartz

9 жыл бұрын

adoboawesome yes

@aaroncameron1494

9 жыл бұрын

Jermain Wallé​ ahh yes. Good catch.

@Thinnestmeteor

9 жыл бұрын

Aaron Cameron You can define whatever with whatever letter ot symbol you want as long as you state it first so others can interpret your results.

Great video, they're getting better with every single one!

That is one of the most comprehensive videos about this topic I have seen to date.

From Veritasium ?

@arnav420

2 жыл бұрын

Yass

@Corruptedhope

2 жыл бұрын

Yass

But how do people ride their bikes without hands?

@zammer990

9 жыл бұрын

SentinelPrimek Steer via moving bodyweight, the way you lean, the bike will follow

@noahhounshel104

9 жыл бұрын

zammer990 That's how I do it, another thing to not is the thickness of the tires, I have a much easier time keeping balance on mountain bike tires Vs. road bike tires

@kyaniteprocessing5816

9 жыл бұрын

SentinelPrimek you move your body weight, if you can do it usualy your body does it on its own. when i do it i dont think about it at all :)

@abcdefghilihgfedcba

9 жыл бұрын

SentinelPrimek When I do it I steer with my legs, somehow.

@donfolstar

9 жыл бұрын

SentinelPrimek People cannot do that. Anyone you see doing that is a sorcerer.

Awesome video Henry! Many thanks!

WOW! That was an amazing video about such a "simple" question! Thanks!

look mom no human

@Xilver_

7 жыл бұрын

uhlus lmao

@anzahanifathallah

7 жыл бұрын

lol

0:08 Bikes can ride themselves LMFAO

@josephchambers5390

8 жыл бұрын

They stay up lol

@azziyt888

7 жыл бұрын

the whole video is about that fact?!

One of my favorite videos!

i just noticed that this video was filmed in Missoula, MT! Awesome vid!

I wonder how stable SmarterEveryDay's reverse steering bike is. It would have #1 and #3 working for it, but #2 is reversed... I think that's right...

i lige benis

That was really good, thank you for creating that video!

Really cool to see a more detailed version after seeing the first one on SciShow!

Note to self : dose not work on bmx :(

..Magic

This is fantastic and very interesting! I love the animation too!

Thanks for this recap of bike physics. Just the visual cues I needed to start thinking about it.

Comment Section: 60% dumb bike jokes, 20% people questioning the physics of this, 8% people telling stories, 8% people commenting about Missoula, 4% real comments, 1% smart comments.

@maxbuskirk5302

7 жыл бұрын

and 0.07% comment statistics ;)

this is how you ride and turn with no hands

@DiscoWalrus

7 жыл бұрын

This is how you ride and turn with no human.

Nicely done. I always thought it was the angle of the front forks. But you make a great case for the other two items.

Such a simple, yet completely intriguing video. thanks!

These videos are informative but always lack key information or explanations. In the case of this particular video, you didn't explain the whole "the bike rides under the center of mass and regains balance" thing. What do you mean by "rides under the center of mass"? I didn't understand it on your SciShow Talkshow and I didn't understand it now. I can try and guess what you mean based on what I see but I don't understand it as a whole. Maybe it would have been easier if you showed us the center of mass of the whole bike. The other problem appears when you talk about the inclined angle of the front wheel axis. You compare the inclined axis of the wheel with a line that would be at 90°. The problem is that you don't really explain what that line is. At first I thought it was what the axis would look like if it wasn't inclined, but the line doesn't even pass through the center of the wheel. It is just a chord of the circle that is the wheel. Then I thought that it could have been misplaced, but then the axis would not touch the ground behind that line at a right angle.

Very interesting and well explained! Thanks!

I was wondering about this all day, Thanks!

I like your materials you used it in explaining this idea :D Thank You

This is awesome Henry!! But I definitely came to see those drone shots that Michael did XD

Classic minutephysics video, loved it

This is great !!!!, however I expected at some point it would also mention the effect of the lateral friction force as a stabilizing torque on the front wheel ... i recall reading an article mentioning it

Thanks for talking about a bike as a feedback control system. I earned my living working on industrial process feedback controllers, and this all seemed very familiar. Now we are ready for a video on how one uses these concepts to make a bike take us where we want to go, as well as to balance.

Awesome video man. I guess the same also applies to cars. Tried it in GTA when I was a kid and it worked and since then I have been wondering about how it works. This video took care of my doubts. Thanks

WOW! Just that, amazing job! Really interesting video! Keep up the hard work! :D

I've known for years that it wasn't just the spinning of the wheels, but no one ever listens when I bring it up... Thanks for the video and scientific backing.

Something as seemingly simple as a bike can put the physicists to a test. Mind blowing.

This video was really nice and I was looking for an explanation like this, thanks :)

Missoula!!! While I always love your videos, this one made me especially giddy... and homesick.

It's a wonderful feeling to take my hands off the handlebars of my motorcycle at 50mph. Perfectly stable, only slight leans needed to keep straight. Feels so free.

Interesting. Even more interesting is the physics behind how bikes (or motorbikes) turn. That would be a great follow up video to this one.

Excellent stuff, thanks.

Well done video! Today's bicycles are engineering marvels. The perfect test machine for our ERW Vacuum Pressure Wheels.

I really, really, really enjoyed this video. Thank you.

That's really cool!