summa_tech

6 ms·

31.
by summa_tech 5mo ago
If you don't have space for a microscope, you can also get yourself the long-range (~400mm) 2.5-3.5x magnifiers that you may have seen your dentist wear. They're easily available on Amazon, not too expensive, and comfortable for h
32.
by summa_tech 5mo ago
It sort of feels like no major open source repository can be possibly left well enough alone. I remember how SourceForge went down the drain, it's a real pity to see same happen with GH. Side note: I read the URL as "dBus hell&quo
33.
by summa_tech 5mo ago
In all fairness, he gets stuck trying to do something good , which is not the standard "evil trapped by its own design" moral.
34.
by summa_tech 5mo ago
I think the issue is that while you can (and perhaps should ) do at least one such thing, it's going to be a pretty lonely pursuit, unless you have a pre-existing group of people to connect over this. The Internet used to be really
35.
by summa_tech 5mo ago
I'm sorry to bring the mood down somewhat further. But a lot of the successful protests just end up re-rolling the dice instead of improving the conditions, and you actually end up possibly worse off than before. "More like, under
36.
by summa_tech 6mo ago
Standard ITU grid is 100 GHz channel spacing, with subdivisions of 25 and 50. We're routinely using symbol rates high enough that the channels are fairly well filled.
37.
by summa_tech 6mo ago
Zephyr support lazy FPU context switches. So the downside from enabling FPU sharing is fairly limited.
38.
by summa_tech 6mo ago
Fiber has fairly narrow windows in which it is as transparent as it needs to be to go long distance. We're already pretty good at filling these windows with conventional semiconductor lasers. What this is actually interesting for is be
39.
by summa_tech 6mo ago
First, I like your username. Second, I think it may be a problem of ebb and flow of scientific discourse (shifts in how we apply the definition of species) more than reflecting underlying reality, which - as you said - has no easy resolutio
40.
by summa_tech 6mo ago
You know, I never thought about it that way. But you're making a lot of sense here. And in older sci-fi literature, after a very early period of distrust of the concept, cybernetics as a component / enabler of perfect collectivist
41.
by summa_tech 6mo ago
This was a fascinating article, because I've seen so many results of the Eastern Bloc reverse-engineering efforts basically founder into obscurity. Many of these re-created (sometimes with minor variations, or quite novel and ingenious
42.
by summa_tech 6mo ago
We could be breaking new grounds with spinning band distilled moonshine.
43.
by summa_tech 6mo ago
While hydrogen-air mixes explode really readily (outstandingly wide flammability and pretty wide detonation range), and the energy released is considerable for the weight, the actual explosion does not produce a particularly high overpressu
44.
by summa_tech 6mo ago
Well, consider that the alternative is a _corporation_ manipulating the algorithm per their own _corporate_ political needs. That's really not much of an improvement. Unless you also think that corporations should have more rights to p
45.
by summa_tech 6mo ago
For the traditional "100 nF per pin" problem, there is an actual constraint based solution. What you _really_ want is an impedance and cross-impedance constraint on current loops through power pins. That's, ultimately, what m
46.
by summa_tech 6mo ago
The next step up is HDI. I knew it was (still) expensive, but I did not realize it was a cost multiplier, not adder :-)
47.
by summa_tech 7mo ago
The name of this project brought many memories of the HP 48G to the forefront of my mind, after so many years. Its 1 bpp pixelated icons and drawings were indeed called GROBs - there are collections of these online. What a coincidental but
48.
by summa_tech 7mo ago
Sometimes, the bigger physical size of through-hole crystals gives them a higher Q. I, too, prefer surface-mount everything but have been defeated on that sadly ;(
49.
by summa_tech 7mo ago
The self-synchronizing scrambler of 10GBase-SR and its relatives is a beautiful piece of engineering. Interestingly, I heard that entrenched telco people were pushing for a much more complicated, SONET-ish approach. But classic Ethernet sim
50.
by summa_tech 7mo ago
I... actually really liked these. And yes, sure, they aren't completely obedient to Tolkien's descriptions of the characters, but the atmosphere feels right. But then again, I grew up with the Moomins.
51.
by summa_tech 7mo ago
And honestly pretty great, unless you are a collector. It's well done. The book itself is beautiful and haunting. But I don't think it's for everyone... I have a copy, and I gifted one to someone in my family who really didn&
52.
by summa_tech 8mo ago
I think the issue at the core of the analogy is that factories, traditional factories, excel at making a ton of one thing (or small variations thereof). The big productivity gains came from highly reliable, repeatable processes that do not
53.
by summa_tech 8mo ago
You could also consider MRAM. Which is available in larger sizes - up to 4 Mbit on SPI bus in the MR20H40, and 128 Mbit in EM128LXQ (but it gets unreasonably expensive when this big). https://www.everspin.com/family/mr2
54.
by summa_tech 8mo ago
Selective amplification of true events as well as selective reporting are bread and butter of modern propaganda. It works a lot better than saying outright falsehoods, which - in the long-term - cause people to lose faith in everything you
55.
by summa_tech 9mo ago
The "interested" part does a lot of lifting though. It's really hard to explain things to uninterested people. If the person you are explaining your project to is not interested in the technical side, presumably under the rat
56.
by summa_tech 9mo ago
In theory, that's true. In practice, any unexplored corner of the field will contain surprises; these will require extra theoretical development to cover. Usually things like imperfect understanding of materials get in the way. Pretty
57.
by summa_tech 9mo ago
To some degree, this is a consequence of the nature of the field you're working in: * if the physics is so completely understood that you can confidently predict something will work from your sofa, and give an error-free recipe to buil
58.
by summa_tech 9mo ago
The issue is that China has done, on the whole, fairly alright for itself. So everyone with any power in the West is looking and thinking: "huh, so the freedom and rights and property were really not important for progress at all - mig
59.
by summa_tech 9mo ago
Can always go splice some PCF or PMF if you like to feel appreciated for your splicing. I swear I'd rather splice 100 SM fibers than 1 PMF.
60.
by summa_tech 9mo ago
The monkeys in my last experiment got there in 221 years, in particular.

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