Hacker News new | ask | show | jobs
by gsteinb88 3769 days ago
I'm not sure that Feynman is the best example here. In fact, in my experience, he's actually more of an example of the problem than the solution. While Feynman does a great job of explaining concepts if you never need to use them, I always found his lectures to be of the "captivating until you try to use them" variety.

This wasn't just my experience either -- after struggling with this as a physics undergrad for a while (after all, they're supposed to help!) I started asking around. My academic advisor, several other professors, and many students felt the same way. Feynman may get closer -- or may do more to bring common understanding to complex principles -- but his approach broke down for actually learning to /do physics/.

But I'll agree that he's a major step in the right direction; I just want to caution against the hero worship. There's no magic formula, no one person, who can make learning complex concepts easier. Some things are hard, and trying to make them seem easier can easily make them more confusing in practice.

2 comments

There was a post about that exact topic on math-blog recently http://math-blog.com/2016/02/01/was-richard-feynman-a-great-...

Summary: he wasn't a great undergraduate teacher.

That was a fantastic post, thank you for sharing. Ironically, while affirming the view I held above, it also makes me think I should -- maybe -- give them another chance now that I'm well along in graduate school as opposed to a struggling undergrad.
I think you should. I had a similar experience with Feynman. Who spoke with assuming a certain level of familarity but with an engaging style that let your brain skip right over what it didn't really understand. Re-reading his lectures on physics and the papers on computation, post college, was a much deeper experience than reading him in High School. Even though I enjoyed both times tremendously.
Robert Leighton: "Feynman has a peculiar property, which is that at the time he's explaining something, it appears very clear and transparent--you can see how everything fits, and you go away feeling very good about it, as if, "Well, there's a lot of loose ends there that I want to follow up on; but boy, wasn't that great!" And about two hours later, like what they say about Chinese food, it's all gone and you're hungry again. And you don't remember what happened.[0]

[0]: Feynman's Tips on Physics: Reflections, Advice, Insights, Practice - https://books.google.com/books?id=FZ4fAQAAQBAJ&lpg=PT32&ots=...

edit: wrong name.

I have read his QED book many times and I experience the same clarity when reading as you mention. Then later I lose that and am able to re-read it with the same enthusiasm I had the first time. So that property does have its advantages. (grin)

BTW, I have this same experience with many other science books for laypeople. It is very possible that I do understand them while reading but then I am unable to remember the complex thoughts.