4
The Natural Escapement (en.wikipedia.org)
submitted 2 weeks ago by cdegroot@lemmy.ca to c/Horology@lemmy.ca

I was reading the latest edition of the AWCI’s Horological Times, which has an article on the latest Rolex escapement. Pretty nifty stuff, and might solve some lever escapement issues.

The article refers “Le Echappement Naturel” by the great Breguet as a starting point, and look at that Wikipedia page - isn’t it awesome what people could build over two-hundred years go, before the industrial revolution took hold?

And also, I wonder. Breguet gave up because manufacturing tolerances weren’t there for this escapement. How would it fare today?

2
The Natural Escapement (en.wikipedia.org)
submitted 2 weeks ago by cdegroot@lemmy.ca to c/lisp@lemmy.ml

Was reading the latest edition of the AWCI's Horological Times, which has an article on the latest Rolex escapement. Pretty nifty stuff, and might solve some lever escapement issues.

The article refers "Le Echappement Naturel" by the great Breguet as a starting point, and look at that Wikipedia page - isn't it awesome what people could build over two-hundred years go, before the industrial revolution took hold?

And also, I wonder. Breguet gave up because manufacturing tolerances weren't there for this escapement. How would it fare today?

2
submitted 2 months ago by cdegroot@lemmy.ca to c/commonlisp@lemmy.ml

I've penned a blog post about Common Lisp Packaging, trying to explain how the various bits and pieces work and how they compare to other offerings.

Explicitly saying "trying", because without a lot of feedback, I'm not 100% sure that a) I got all the details completely correct, and b) that it is actually helpful to beginning CL-ers. So lemmy know :-)

[-] cdegroot@lemmy.ca 1 points 2 months ago

Swiss watches pretty much are all just variations on the same theme as, say, Seagull's movements, so "meh". I have a skeleton Seagull and it's nicely built, but I did have to disassemble it and property clean and lube it on arrival, that's the biggest issue with anything cheaper than a basic Seiko IMO. Not everybody is setup to do that, and parts aren't available so if it breaks or stops working, you have to toss it. Not my preference, you'll likely get more life out of a $20 Casio watch :-)

9
submitted 2 months ago by cdegroot@lemmy.ca to c/Horology@lemmy.ca

A colleague is visiting Switzerland and of course the talk is about watches. Here's my advice on buying a watch:

  • If you want to know what time it is by looking at your wrist, buy a quartz watch. I'm a fan of Casio, but anything will do.
  • If really want a mechanical watch, care about precision and quality, and want to have the best bang for your buck, buy a Japanese watch. You can't go wrong with a Seiko.
  • If you want a reasonable watch and spend as little as possible, Chinese company Seagull got you covered. I own one, it's fine.
  • If you want to buy some jewelry that also tells the time, buy Swiss.
11
submitted 3 months ago by cdegroot@lemmy.ca to c/lisp@lemmy.ml

I'm writing a technical history book of sorts on Lisp, it's been years in the making and this is the first time I'm looking at something actually book-like (instead of LaTeX source or on-screen PDF ;-)).

For some reason, I spot more errors with hardcopy, so decided that for the final pass before I rope in some volunteer reviewers, I'd print and quickly bind it. Once the reviewers are thumb-up, hopefully just some quick typesetting fixes and then off to publication!

[-] cdegroot@lemmy.ca 2 points 3 months ago

Gorgeous thing. Is that mercury in the glass tubes in the pendulum?

[-] cdegroot@lemmy.ca 2 points 5 months ago

While I won't say that writing a text editor or rewriting (base) Emacs is easy, I think it is all about the ecosystem. There's lots of Emacs reimplementations out there, some really good ones (like Lem), but they all have the same shortcoming: "no org mode", "no magit", and so on.

Emacs has a truly enormous ecosystem and only a reimplementation that runs everything unchanged has a chance of attracting enough attention. There was a time that that was seen as a worthwhile venture: Elisp was limited and slow. However, now with CL compatibilty and native compilation, I don't see it happening. Not in the sense of something standing up that can and will actually replace Emacs.

Worse is better :-)

8
submitted 6 months ago by cdegroot@lemmy.ca to c/Horology@lemmy.ca

Needless to say, that watch got pre-cleaned right away and all the cleaning fluids safely disposed off :-)

[-] cdegroot@lemmy.ca 2 points 10 months ago

My favorite watch is my smart watch. It's actually smart: it never needs a charge, it sets time from atomic time signals, has a clearly readable mixed analog/digital display, and comes with some handy extras like a compass and baro/altimeter. Oh, and I can wear it while logging, as it's virtually indestructable. Try that, Apple! (it's a Casio G-Shock Mudmaster GWG-1000).

My second favorite watch is what I'm now wearing - a CA$129 Seagull. It's a skeleton watch with no dial and transparent front and back case, so I can brag about my skills ("I disassembled and cleaned this watch, try to find any scratch marks on the screws!" - there are some tiny ones, I must admit), and, more importantly, show people how mechanical watches work :-). It's also a darn good timekeeper for the money.

[-] cdegroot@lemmy.ca 2 points 10 months ago

It's on my (ever shrinking) list of clocks I'd like to own. And be able to maintain :-). Thanks for sharing.

[-] cdegroot@lemmy.ca 2 points 10 months ago

The sort of protections that you're offered by your CPU and modern OSes aren't offered by GPUs and their libraries, yet. So you're back in the '80s, when your Mac or MS-DOS machine would crash hard on the smallest issue. That's life, I'm afraid.

[-] cdegroot@lemmy.ca 6 points 10 months ago

Lower settings. Sorry, thats all there is to it. 8GB is not a lot these days (i have two older cards in my PC and they're both 12). Textures, screen resolution, there's a bunch you can do.

Crashes are unavoidable, given that everyone wants max performance everywhere, things get shipped with all the debugging and checking stripped.

[-] cdegroot@lemmy.ca 27 points 10 months ago

It's just much easier to stop using them. Remember: its founder and largest shareholder (I guess) was one of the billionaire groupies standing behind Trumd during his inauguration. Canadians should not be shopping on Amazon.

[-] cdegroot@lemmy.ca 5 points 11 months ago

I think French and Heinz use Canadian tomatoes. So does the bottle of Compliments in my fridge. I guess we grow more tomatoes than we realize :)

[-] cdegroot@lemmy.ca 1 points 11 months ago

It's a cult and you just joined it ;-)

There's a ton of reading on all these topics. If you're interested in browsing what the actual process of tinkering on watches and clocks entails, archive.org has scans of relevant books, like https://archive.org/details/practicalwatchre0000deca and https://archive.org/details/watchclockmaking0000wjga. If lending your eyeballs to the algorithm is more your thing, https://www.youtube.com/watch?v=dJxnP0qA2hU&list=PL7q4FTKNfQj-bcGk0JfUXioeq6KNtyhVA is a neat playlist.

There's a bunch of videos on probably one of the most interesting devices in history, the Harrison H4 marine chronometer. Whether it was the first or the best is probably less important than that there is a juicy story about this nerd that comes out of nowhere and officials refusing to hand over the large pot of money that the British promised to whoever could make a clock precise enough to be used on a ship for navigation.

An actual modern watch making hero is George Daniels, who essentially built watches by hand from scratch - bars of gold, steel, brass entered his shop and working watches came out (at the tune of maybe one a year). A bunch of documentaries were made about his life and work and I think they're all quite cool.

Lemme know if you need more :P

[-] cdegroot@lemmy.ca 2 points 11 months ago

In a nutshell, the study of measuring time. Most textbooks start with the stars and how we can use them for that purpose, including of course our own. Solar clocks, water clocks, you name it and it existed before the modern clock was invented.

Turns out that timekeeping was crucial for navigation so in a sense, making clocks better became a precondition of navigating the globe and a lot of advancements in (micro)mechanics started there.

Of course, these days we keep all but perfect time and position using atoms and satellites and software, but a lot of people are attracted to these marvelous mechanical devices that measure time. So learning about (mostly mechanical) watches and clocks, what makes them tick, how to maintain them and how to repair them is usually the topic of discussion for horology forums.

It's a very deep rabbit hole. But a fun one.

I started going down it because I like tinkering, doing fine motoric stuff but found spending money on Lego sets got boring and I ran out of space to display them. Watches are much more space efficient and when done with them, you can sell them :)

3
Welcome (lemmy.ca)
submitted 1 year ago by cdegroot@lemmy.ca to c/Horology@lemmy.ca

Moving from Reddit, I noticed there's little talk over on Lemmy about what is turning out to be my main hobby. So here's a very broad community, in the hope that all my peers in the hobby will find it :-)

view more: next ›

cdegroot

0 post score
0 comment score
joined 1 year ago
MODERATOR OF