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

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

ThisIsTaco1 Well what did he say anyway?

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

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

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

Lol I just saw you on an iTwe4kz vid

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

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

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?

Mumbo Jumbo Hi Mumbo :D

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

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

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

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

+Archit Bhonsle just click him and check his subs

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

I saw another explanation of about this. It is a different way. kzfaq.info/get/bejne/jcqCgsqUvLbVmWQ.html

ROG ROG ROG

AlexandreHimself LOL

AlexandreHimself Grammar rules were harmed making this comment.

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

cant

Whoever made the modern bicycle was a true genius.

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

+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..

Dragon Xero Beautifully written, and I agree wholeheartedly!

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

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

bassisku I totally agree.

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 ;)

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.

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.

***** Totally appropriate comment.

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

Saifthebest01 ( ͡° ͜ʖ ͡°)

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

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

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

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

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

SonicRooncoPrime How much of GR do you really understand?

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

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".

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

+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?

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

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

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.

Same

Silvrix Magenta Honestly I understood it better there.

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

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

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.

Paul J Interesting point of view.

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

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!

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.

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

Richie Godsil If not ghosts, then what?

Richie Godsil m8, it was god, duh.

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

This Exists Sons of Science "Motherfucking Bike"

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

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

everyone that bikes a lot already does

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.

***** no, u

David Chester David: Andy here, a co-author of the research being described. The mystery is not the lack of explanatory power of the linearized equations. Those seem pretty good. It is that stability is determined by the roots of a 4th order polynomial, and the coefficients of the polynomial are themselves complex expressions involving, lengths, angles and inertias. So the mystery is to give necessary and/or sufficient conditions for stability that are not pages-long mathematical expressions. By the way, I also think the video is excellent. The best bicycle dynamics video on the internet, beating out those by me and other co-authors of the research.

And God loves you!

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

drink15 No I don't. I hate cats.

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

A Cat God loves you two

There has been test with wheels that counteract the gyroscopic force created and the bicycle still stays stable. Citation: kzfaq.info/get/bejne/j72jfpmj0tmvg30.html

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

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

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

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

I'm going to think about it tomorrow.

Goku AKA Kakarot luminati level is OVER 9000!!

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.

It has 4 wheels.

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

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

Cheif Wolf Magic, didn't you know?

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

If you think this is hard, then yes

Nah. Rocket science is easier than this.

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.

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

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.

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.

***** 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.

Yass

Yass

Excuse me, but wouldn't it be easier if the tire had an almost-triangular-like cross section?

They stay up lol

the whole video is about that fact?!

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

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

adoboawesome yes

Jermain Wallé​ ahh yes. Good catch.

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.

uhlus lmao

lol

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

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

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 :)

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

ALAKTORN Same... It's much harder to shift your weight fast enough on a BMX, so I just use my legs :D

and 0.07% comment statistics ;)

This is how you ride and turn with no human.