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The Feynman Lectures on Physics, Volume I

feynmanlectures.caltech.edu

61–70 of 117 posts

Re: The Feynman Lectures on Physics, Volume I

#61
post #47

I was the project lead on this, which involved converting the Feynman Lectures from LaTeX to HTML. I'd be happy to answer any questions. Update : Most of the questions center on cost. I've answered in more detail below, but the short version is simple: no off-the-shelf converter was remotely sufficient for our needs, so we had to write lots of custom software, and writing custom software is hard.

One obvious question: why not use crowd funding to pay for finishing converting volume II and III?

Re: The Feynman Lectures on Physics, Volume I

#63
post #54
post #52

Earlier quoted context omitted.

Trevyn, above, mentioned, > The conversion from LaTeX to HTML was expensive: we raised considerable funds, but ran out before finishing Volumes II and III, so we are only posting Volume I initially. I don't know too much about digitalisation, but why does it cost so much?

The LaTeX source of the Lectures is long and heavily formatted, so the conversion to HTML involved writing a large amount of custom software, including lots of tests to catch regressions. In other words, this was a speculative software project; as anyone who has experience with such projects can tell you, it is virtually impossible to anticipate all the problems you'll run into. (The costs would have been even higher…

I am very grateful for your work, and I hate to pick on details, but surely you reused much of what's already available for LaTeX? I hope you didn't spend much of your time reinventing the wheel. I freely admit that I am probably vastly underestimating the amount of work that went into this, reuse or no.

Re: The Feynman Lectures on Physics, Volume I

#64
post #61
post #47

I was the project lead on this, which involved converting the Feynman Lectures from LaTeX to HTML. I'd be happy to answer any questions. Update : Most of the questions center on cost. I've answered in more detail below, but the short version is simple: no off-the-shelf converter was remotely sufficient for our needs, so we had to write lots of custom software, and writing custom software is hard.

One obvious question: why not use crowd funding to pay for finishing converting volume II and III?

That's worth thinking about. One issue is that it's hard to tell how more more money is needed to finish it. Alas, custom software is rife with uncertainty. (Practically speaking, this means that, e.g., custom hack #37, needed to complete Chapter 17 in Volume I, might not work for Chapter 38 in Volume II, etc., etc. It's a long, hard slog.)

Re: The Feynman Lectures on Physics, Volume I

#65
post #22

Is the material going to be available in some format suitable for Kindle? Or do I need to convert the HTML myself?

I'm really hoping that we can get the original LaTeX someday - the conversion possibilities from that are endless.

Well, since Caltech is still selling the original printed volumes, that's not likely. Nice idea, but it's easy to see why it's not in the cards for now.

Re: The Feynman Lectures on Physics, Volume I

#66
post #34

[deleted]

That is just sad. Why do you think most people get nothing out of art? Do you not consider Bach's fugas art? Or the Brothers of Karamazov? Or the statue of Nefertiti? I suppose you must mean that most people do not get an immediate material benefit out of art. But there is so much more in life than that.

And even if you feel there is no value at all in art, there is still informational value in effective education. And an understanding of physics IS a material benefit.

Re: The Feynman Lectures on Physics, Volume I

#67
post #54

Earlier quoted context omitted.

The LaTeX source of the Lectures is long and heavily formatted, so the conversion to HTML involved writing a large amount of custom software, including lots of tests to catch regressions. In other words, this was a speculative software project; as anyone who has experience with such projects can tell you, it is virtually impossible to anticipate all the problems you'll run into. (The costs would have been even higher…

I am very grateful for your work, and I hate to pick on details, but surely you reused much of what's already available for LaTeX? I hope you didn't spend much of your time reinventing the wheel. I freely admit that I am probably vastly underestimating the amount of work that went into this, reuse or no.

We did make use of as many existing resources as possible. If you take a look at the [Ruby on Rails Tutorial book](http://railstutorial.org/) and [The Tau Manifesto](http://tauday.com/tau-manifesto), both of which are converted to HTML from LaTeX, you'll see that I have deep experience in such conversions. Combined with my previous role as Caltech's editor for the Definitive and Extended Edition of the Feynman Lectures (and my Caltech physics Ph.D.), this made me uniquely qualified to work on this project, which is the main reason I did it. (It certainly wasn't for the money; the opportunity cost of the time I spent on this project was high.)

Unfortunately, there's a vast gulf between "kinda-sorta mostly converted"—which is the best you can get with off-the-shelf converters—and "a faithful representation of the Feynman Lectures". Closing this gap required a large amount of gruesome work.

Re: The Feynman Lectures on Physics, Volume I

#68
post #47

I was the project lead on this, which involved converting the Feynman Lectures from LaTeX to HTML. I'd be happy to answer any questions. Update : Most of the questions center on cost. I've answered in more detail below, but the short version is simple: no off-the-shelf converter was remotely sufficient for our needs, so we had to write lots of custom software, and writing custom software is hard.

Have you thought about putting the source and scripts into a github repo, and taking community contributions? I'm sure people would pitch in to get later volumes converted.

Re: The Feynman Lectures on Physics, Volume I

#69
post #68
post #47

I was the project lead on this, which involved converting the Feynman Lectures from LaTeX to HTML. I'd be happy to answer any questions. Update : Most of the questions center on cost. I've answered in more detail below, but the short version is simple: no off-the-shelf converter was remotely sufficient for our needs, so we had to write lots of custom software, and writing custom software is hard.

Have you thought about putting the source and scripts into a github repo, and taking community contributions? I'm sure people would pitch in to get later volumes converted.

I'll look into it, but unfortunately this isn't up to me. Convincing the publisher to let us put up an online version was hard enough.

Re: The Feynman Lectures on Physics, Volume I

#70
post #52

Earlier quoted context omitted.

Trevyn, above, mentioned, > The conversion from LaTeX to HTML was expensive: we raised considerable funds, but ran out before finishing Volumes II and III, so we are only posting Volume I initially. I don't know too much about digitalisation, but why does it cost so much?

This was one of my first thoughts; I know it's oversimplifying it by a wide margin, but there is a latex2html program in existence.

There are various ways to do this, none of them perfect. Online searches suggest that "htlatex" (for HTML output)and "xhlatex" (for XHTML output) are pretty good:

http://tug.org/applications/tex4ht/mn-commands.html

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