kortex

63 ms·

841.
by kortex 4y ago
JWST folded is about 3 tiles wide, in a housing 4.7m in diameter, unfolding to 6.5m. So a JWST style fold in a Starship would be double. A one-mirror-segment-per-flight would be something like 36m, in the same arrangement. But since you wou
842.
by kortex 4y ago
I wouldn't worry. Lignin (in wood) is a bit more reactive than polyolefins. It was effectively indigestible for eons until fungi figured out how to break it down, and even then, wood only breaks down in certain conditions.
843.
by kortex 4y ago
Yeah, chromium and nickel, two of the chief components that put the stainless in stainless-steel, are rather toxic in most/all oxidation states (Cr3+ is weirdly biologically necessary but toxic in high doses). Their refining process is
844.
by kortex 4y ago
> If dUT1 can become either negative or larger than 1, Negative values should already be accounted for, afaict. > UTC is maintained via leap seconds, such that DUT1 remains within the range −0.9 s < DUT1 < +0.9 s. I can't i
845.
by kortex 4y ago
The rate of angular change divided by angle sure as heck sounds like units of time to me. The absolute angle isn't, but the rate of change is, and UTC still tracks with rate of change, with a phase angle we periodically twiddle. That&#
846.
by kortex 4y ago
> The problem is that UTC, despite its name, is not a time . Could you elaborate on what you mean? What is UTC if not a time? Like, datetimes vs time? Even if Unix time was based on TAI, you'd still need leap seconds in order to re
847.
by kortex 4y ago
I don't think we will ever need a negative leap second. We can just wait longer until dispatching the next positive one. The only situation in which we'd need a negative leap second is if Earth's rotation were consistently sp
848.
by kortex 4y ago
Yes, that's exactly what I said. dict.update is in C, because it's a core feature of the python vm . It's pure CPython. What do you think "pure python" is? There's no python hardware ISA (afaik). All cpython i
849.
by kortex 4y ago
But you are still wrong. As mentioned, Dicts are incredibly efficient data structures in Python (because they underpin everything ) and the Counter class is pure python. That's 100% pure python. Saying dicts "don't count&quo
850.
by kortex 4y ago
How? Rail at least provides a direct conductive path. Electrified highways would require inductive charging at 65mph (not feasible) or building overhead pantograph systems (expensive but at least vaguely tractable). Either requires speciali
851.
by kortex 4y ago
Can we move past the whole "it is not really python to use libraries written in C", especially when talking pure stdlib python? Python is basically a DSL for C extensions. That is the whole point. It would be like criticizing any
852.
by kortex 4y ago
Tar is really great for its intended use case (archiving files to tape, with the constraints of late 1970s computing power), and kind of weird in basically all other uses. The block format wastes tons of space unless you compress it with ru
853.
by kortex 4y ago
I'm actually working on just such a thing! It's definitely a low-priority side project at this point, but I think the general technique has legs. It was born out of a desire for easier to use streaming container formats that can s
854.
by kortex 4y ago
Aluminum production is also tightly coupled to electricity production, so cheaper power could lead to cheaper aluminum in a positive feedback loop.
855.
by kortex 4y ago
Wouldn't exsolation just be albedo and/or radiative cooling?
856.
by kortex 4y ago
Young me would have LOVED that hydrodynamic building set. Adult me would still love it, but I used to, too.
857.
by kortex 4y ago
They actually make pumps that run off of power tool batteries. No rigging required. E.g. RYOBI One+ 18V Hybrid Transfer Pump P750 They also make battery-to-12VDC adapters, and there are plenty of 12v barrel jack fountain pumps. Don't e
858.
by kortex 4y ago
I don't think it's intended to be homophobic. The album art is just really cringey. https://en.m.wikipedia.org/wiki/Songs_of_Innocence_(U2_album...
859.
by kortex 4y ago
One of them is, yes. There are several, and basically all of them are some variant of "how resistant to giving into despair are you? (as a rat)". Forced swim, tail suspension, light/dark exploration activity. Kinda dark, but
860.
by kortex 4y ago
Ignoring the fact that basically all drug development outside of the computational stuff is large amounts of trial and error, there is ample evidence that ADHD results from dysfunction of specific neural pathways, and stimulant medication b
861.
by kortex 4y ago
Swagger/OpenApi is probably the closest thing to "true REST" with self-discoverable APIs. Without some sort of common schema of where/how to look for resources, there's no real automated discovery to be had without
862.
by kortex 4y ago
> XML/markup does not map well to basic data types in current programming languages. These work with strings, ints, floats and arrays/dictionaries thereof. Not Nodes, Elements and attributes of unknown/variant data types E
863.
by kortex 4y ago
> You could go all WebDAV with status 422 for non-syntactic errors, but I am skeptical of its utility. FastAPI uses 422 for "your data is structured wrong for this schema" and it's better than sliced bread. I think the wor
864.
by kortex 4y ago
Hard drive access LED, optical disk servo, and the piezoelectric discharge due to thermal rise/fall of the GPU. I'm only half joking.
865.
by kortex 4y ago
> I worry that some of the toxins produced with modern technologies may be worse than what we already have. Well worry not, as coal is known to be the greatest contributor of radioactive elements and mercury in our environment at the mom
866.
by kortex 4y ago
Exactly this. Why should anyone be able to potentially see any of my personal info? (I doubt whatever parallax effect or whatnot magic tech is perfect - it's gonna eventually leak). I'm already glued to my phone at the airport bec
867.
by kortex 4y ago
> the explicit reason was that people were using json comments to encode all the metadata and crap from XML like namespaces to make fully reversible JSON/XML converters Oh is that why. I had heard that comments were taken out beca
868.
by kortex 4y ago
> I suspect the lack of sum types in many static languages are partially responsible for the popularity of dynamic ones. I can totally see this. I started writing a small cli tool in Go, and despite knowing way less Rust, I switched to i
869.
by kortex 4y ago
I don't even know how well American English generalizes within itself. I've found the internet diaspora has their own language patterns which often differ quite a bit from "normies". You also have a tremendous amount o
870.
by kortex 4y ago
You definitely need more labels when categorizing sentiment than just emotion/valence. Possibly even degrees/confidence by the annotator. Heck, have several annotators label it, and derive a "Controversial" feature based

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