4 ms·
Literature professor = bike argument? That's were I put my money, but I could see it going either way. This can devolve into a definitional argument, but I ac
by jonahx 2y ago
Literature professor = bike argument?
That's were I put my money, but I could see it going either way.
This can devolve into a definitional argument, but I actually think it's fair to say we don't understand how we ride a bike. We have many abilities and fluencies we don't understand, or only partially understand, in the sense that we can't break them down into pieces easily and transmit the information. That perspective feels more accurate to me than saying I understand how I ride a bike because I can ride a bike, though in common usage the phrase "I understand how to ride a bike" would be perfectly acceptable.
The subtle distinction between the phrase "knows how to" and "understands" hints at the difference here.
- gsf_emergency_2 2y agoLooks like here's an opportunity for a language to express the riding of bikes Headstart (modelling the non-riding of bikes): http://ruina.tam.cornell.edu/research/topics/bicycle_mechanics/JBike6_web_folder/ http://ruina.tam.cornell.edu/research/topics/bicycle_mechani...
- somat 2y agoWe(by which I mean a person who knows how to ride a bike) do understand how to ride a bike. The problem in communicating that is a riding a bike is a skilled act. that is you cant get good at riding a bike by reading about it, and it is very hard to describe a well trained skill, it boils down to "practice a lot" which makes nobody happy.
- adastra22 2y agoOne of the reasons you can’t get good at riding a bike by reading about it is that we literally don’t understand the mechanics of bike riding. It’s a currently unsolved problem in physics. Google it if you do t believe me! So I get what you’re saying, but it is maybe not the optimal example.
- moi2388 2y agoIt’s not. Google harder.
- rcxdude 2y agoIt's not unsolved per se, just a complex topic that resists simple explanations. (see also: what causes lift in an airfoil)
- adastra22 2y agoSibling comment to yours points to a relatively recent (this century) article with a mostly complete theoretical model for bike self-stability. There are other theories though, some more or less developed than others. It turns out to be a fiendishly hard control-theory problem, and at least one aspect is chaotic. Which theory is correct has not, to my knowledge, been definitively determined by experiment. Until it is, I think it is fair to say that it is unsolved. Unlike lift, which is very well understood but often poorly explained.
- Syonyk 2y ago> (see also: what causes lift in an airfoil) That's easy! It pushes air down, and the reaction force is what we call lift! ... now, why it pushes air down... there be many computational fluid dynamics PhDs... though "angle of attack" covers a lot, and the rest is just efficiency tweaks. Good question for teachers who insist it's the Bernoulli Principle: "But my paper airplane has flat wings and flies just fine!" toss across classroom
- hattar 2y agohttps://royalsocietypublishing.org/doi/10.1098/rspa.2007.1857 https://royalsocietypublishing.org/doi/10.1098/rspa.2007.185...
- gsf_emergency_2 2y agoMATLAB Code from the authors: (There's no rider however) http://ruina.tam.cornell.edu/research/topics/bicycle_mechanics/JBike6_web_folder/ http://ruina.tam.cornell.edu/research/topics/bicycle_mechani...