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I was fascinated to learn about this stuff because it seems really well architected; even a decent realization of the 6th and 7th layers of the OSI network model (which aren't practically used anywhere and are thus terribly re-implemented at the application level...).

lm  ·  link  ·  parent  ·  post: Pubski: June 21, 2017

I didn't find it wordy (but maybe that's me). There are a lot of puns and wordplay and odd stories. I guess the best way I can explain it is it's how mathematicians and scientists write when they're writing for fun. Something like this or Cliff Stoll's writing.

Maybe that's the thing I liked most about it: it is a bunch of "weird math", but Hofstadter is having so much fun telling you about it that I couldn't help but enjoy it. (Then again, I'm a grad student studing "weird math" partly because I read GEB years ago, so YMMV.)

Science funding as well.

lm  ·  link  ·  parent  ·  post: Pubski: June 21, 2017

Busy summer. Right now:

1. Teaching discrete math, which is fun but I wish I had more time to prepare fun stuff for it.

2. Writing a lab book and teaching the associated lab.

3. Trying to write a paper that's due on the 30th...

My advisor went to Singapore recently to present my research groups' work. It went very well: I now have a standing invitation to spend a few months doing research in Singapore! I have never been off the North American continent before so I have no clue what to expect.

Right now, though, I mostly just want to sleep. Maybe do some manual labor. Writing stuff on a computer all day every day is exhausting.

lm  ·  link  ·  parent  ·  post: Pubski: June 21, 2017

I enjoyed GEB, although Hofstadter's style is...something, for sure. Either way, there's plenty to think about in that book, and a surprising amount of fun motivation for learning discrete math.

lm  ·  link  ·  parent  ·  post: Shopski (short): Learned to O/A weld today

That's legit! I assume you know of the White Zombie?

Looks like you can use a 3-phase motor and a VFD if you want (and can provide a DC-DC converter or other source of 300ish VDC)....

(damn you, I have other things to do tonight!)

lm  ·  link  ·  parent  ·  post: Shopski (short): Learned to O/A weld today

Ok yep, I'll check the seals next time I'm at it.

It is a riding mower; an old Murray that I paid...$150? for a while back. What's great is that I actually bought a whole replacement box (can't buy the sector gear individually...) and the replacement gear that meshes with the sector gear wasn't hardened and was turning in a steel bushing. What a shock, it lasted maybe a season before getting chewed up to all fuck. And the replacement sector gear is so sloppy in its pivots that the teeth only half engage anyway, so they wear out even faster. So here I am, using the original steering gear and re-making the original sector gear because they're better quality than the replacements. At least this time I had the new sector gear to use as a pattern.

What'd you do for an electric conversion? That sounds like a fun project and I may be able to get my hands on an engine-less mower in otherwise good condition for a cheap price...

lm  ·  link  ·  parent  ·  post: Shopski (short): Learned to O/A weld today

Hey, one question about O/A stuff: do any of your torches have a "pilot light" type setup? If I have the torch lit, then close the acetylene valve on my torch handle all the way, it lets enough gas by that there's a tiny lick of flame at the tip, and I'm not sure if it's supposed to do that or if I need new valve seals.

lm  ·  link  ·  parent  ·  post: Shopski (short): Learned to O/A weld today

I believe you that the metallurgy is garbage; the existing teeth I can cut with a file; the welded-on teeth are a bit too hard to file (at least with the cheapo triangular file I was trying to use). I am really unimpressed with this design as a whole and need to find a mower with a more robust steering setup to graft onto this. (Or a better mower to buy as a replacement.)

O/A welding is sooooo zen. Need some heat over there? Just point the torch there. Need some filler here? Bam, just feed a little into the puddle. MIG's fine for production-type stuff where you just need to lay a bead down on some metal. O/A gives you so much control over what's going on, it's ridiculous. Can't wait to try some sheet metal welding with it.

lm  ·  link  ·  parent  ·  post: Ask Hubski: What are you working on?

Writing a lab manual for the lab I taught last Spring. Hopefully this way all that knowledge will not leave when I graduate and that other people will be able to teach the lab.

Also writing a paper on my research that's due at the end of June.

Also, chickens, cars, some machining, topology, and discrete math...

lm  ·  link  ·  parent  ·  post: Apple's keynote slides from WWDC 1997

Was "yellow box" ever anything but vaporware? I spent some time fiddling around with Macs from that era and never heard of it before today.

I remember almost getting an eMate for a portable laptop a while back, but they were never as cheap as they ought to have been considering the usefulness of the hardware. (Instead I bought an X61 which is still my main laptop...)

Gracie is the biggest bird and super independent, but she'll fall right alseep if you pick her up and pet her. Here's Gracie and me, sleeping:

Bertha knows she can fly out of the cage, but she'll only do it if I'm standing there to hold her. Other times, if she wants out, she'll lock eyes with you and do this little dance thing and if you put your hand down, she'll step up onto it. We eat breakfast together sometimes.

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