eichin

27 ms·

511.
by eichin 3y ago
yeah, the number of times I've cleaned up some code because it was "just wrong" and as part of making sure it had test coverage for visible impact, identified a "oh, this has been flaky at a customer site for years, but
512.
by eichin 3y ago
Ah, found nachirobotics with a matching logo (in a video about a refrigeration factory modernizing their automation, but it was on a welding robot there.) So, maybe one of https://www.nachirobotics.com/product/lp180&#x2
513.
by eichin 3y ago
Ooh, thanks for the reference. Kind of looks like https://www.zonesunpack.com/products/zonesun-industrial-arti... - that four-bar linkage for the arm segments isn't unique (as you mentioned, the big kawasaki arms
514.
by eichin 3y ago
Sure, https://danluu.com/input-lag/ has probably done the most thorough review of this. But in the 90s, remote work for me meant a lot of interactive sessions from Boston to the Bay Area, and this decade, it means &quo
515.
by eichin 3y ago
Huh, on a linux desktop the "own voice" example just seems to change height and weight and nothing else. (Still horrible, but it just looks like it's "breathing".) On mobile (android chrome), it looked like it was
516.
by eichin 3y ago
Not to deny your particular experience - but The Humane Interface (Raskin, 2000) talks a bunch about how doing comparisons between keyboard and mice (and hybrid interfaces) was difficult because user's self-reported experience of the
517.
by eichin 3y ago
Heh, have you ever had someone ask you what keybinding did something, and you had to actually move your hand to recall it? (That may be more specifically a skilled-at-emacs thing, then entirely generic typing...)
518.
by eichin 3y ago
Yeah, if the system I'm using has excessive latency (more of a 90s problem than today) precision means even when I do mistype, I'm "feeling" it and backspacing, not seeing them (since they haven't echoed yet.) It&#x
519.
by eichin 3y ago
Any idea what model? The bbc picture looked like implausible artwork (way too much expensive hardware in-frame for a "replace cheap humans with cheaper robots" scenario) but I could see them picking a low-end industrial/autom
520.
by eichin 3y ago
Hmm, that would suggest that he both had better training about the robots (compared to a random food-packing-plant worker) but was also more comfortable around them (which is a huge risk with any powerful equipment, including automobiles.)
521.
by eichin 3y ago
https://www.bbc.com/news/world-asia-67354709 also quotes "South Korean news agency Yonhap", and quotes statements from "the Donggoseong Export Agricultural Complex, which owns the plant" - and gives
522.
by eichin 3y ago
All of those are possible, but food handling usually uses less powerful robots (simply because they're a lot cheaper) so there may have been some complacency about them not being that dangerous. (Physical barriers can be tricky to ge
523.
by eichin 3y ago
it's not even the first this year. But yeah, from https://www.bbc.com/news/world-asia-67354709 (non-paywalled coverage of the same story) it sounds very much like not doing lockout/tagout or at least hitting
524.
by eichin 3y ago
One of the articles on this mentioned "ratgdo" as a simple board to do most of the "make a button wirelessly available to homeassistant", I haven't tried it but searching on it gets you a lot of reasonably specific
525.
by eichin 3y ago
Eh, a college friend put together a C compiler in 100 lines of yacc (not particularly golfed, either, C just isn't that sophisticated.) Great for playing with "what if C + this one feature" kind of things in a concrete way.
526.
by eichin 3y ago
Following links to related articles gets to an earlier https://physics.aps.org/articles/v16/186 (talking about the weird decay rather than the Nitrogen itself) which quotes the whole multiproton decay process taki
527.
by eichin 3y ago
The first interview where I was handed some (intentionally) broken C code and gdb was about 15 years ago. I'm not sure that part is a change in developer workflow (this may apply more in systems and embedded though.) I've been
528.
by eichin 3y ago
Having never seen it, or anything even close to it. (Of course, I'm a little biased by seeing product demos that don't even get "add another item to this list of command line arguments" right; maybe if everyone already
529.
by eichin 3y ago
They are cheap, but range and resolution are terrible. More comparable are the radar units for the "car in your blindspot" lights in mirrors (not really comparable to lidar at all, just vastly better than sonar.) Tesla dropped t
530.
by eichin 3y ago
Hmm, I'd be a little surprised if this was smaller than some of the 8-bit era forths (the TIL book had a 50ish-byte "inner interpreter" for Z80 but that didn't include any of the baseline "words" that this does
531.
by eichin 3y ago
As of 5 or so years ago, the lidar used for this on the research side of things started at US$10k per unit (and for "surveying" you can do ok with one-on-top but for navigating you need something smaller and not sticking out of
532.
by eichin 3y ago
How does it do in performance/efficiency? (Lua is pretty low overhead, but I guess for something embedded like this maybe latency in responding to an input, rather than a "normal" benchmark, would make more sense?)
533.
by eichin 3y ago
Cosmic rays were a theory in 70's era hardware for failures that ended up being proven to be particles emitted by the ceramic packaging itself. (Modern bitflips are have more to do with component sizes several orders of magnitude sm
534.
by eichin 3y ago
Hmm. "ronn" doesn't get mentioned, I should make sure it does the sensible thing (because it's 2023 not 1983 and I don't expect anyone to use an obscure typesetting-ish notation to write very stylized man pages that
535.
by eichin 3y ago
Good lessons for later years, but anachronistic in this context :-) It included a surprisingly short (400ish?) password entry table to try, but they were poorly chosen human passwords - I don't recall much being popular enough to even
536.
by eichin 3y ago
http://tmrc.mit.edu/history/ has model trains, relays, and PDP-11s :-)
537.
by eichin 3y ago
Oooh, flashback to early TRS-80 days - there was an on-motherboard relay to control the tapedeck (pause/continue transport, you still had to have the buttons pushed down.) You could instead drive it fast enough to make (very grating)
538.
by eichin 3y ago
MIT and Berkeley did release patches at one point - not to fix any "real" problems - but since we were decompiling the VAX version, "missing an & in a bzero call" is really obvious from the machine code, since it j
539.
by eichin 3y ago
I've always been amazed at how often simple tests like https://en.wikipedia.org/wiki/Benford%27s_law actually catch this kind of thing...
540.
by eichin 3y ago
One of the big sources of new runestone discoveries in Sweden is "load bearing part of someone's basement" (and that similarly some amount of the Acropolis turns up as having been used as construction material.)

More ›