jabl

43 ms·

691.
by jabl 4y ago
I don't think we'll see ammonia used in domestic refrigeration. Industrial use, sure. I think what we'll see for domestic refrigerants (refrigerators, AC, heat pumps) is hydrocarbons like propane or butane (already a reality
692.
by jabl 4y ago
Also GA is, in the end, a relatively small-scale activity, so leaded avgas isn't much of a public health hazard like leaded automotive gas was back in the day. More of an occupational hazard for people working on and flying those plane
693.
by jabl 4y ago
USA is kind of the exception. In much of the rest of the world, propane or butane are the norm in domestic refrigerators.
694.
by jabl 4y ago
In Europe there's also problems with cross-border rail freight, partly due to incompatible systems, and partly due to bureocracy (national operators lobby politicians hard to protect their home turf, while trying to expand internationa
695.
by jabl 4y ago
When the engine is warmed up starting it doesn't AFAIU cause any big pulse of pollution. Also vehicles equipped with these stop-start systems AFAIK have more powerful starters so they can start faster.
696.
by jabl 4y ago
Todd Rider's 1995 PhD thesis poured cold water on all these exciting aneutronic fusion approaches. He maintains to this day a good presentation covering various approaches and what is feasible and what isn't. Current version at h
697.
by jabl 4y ago
- Chess was in times past seen as the ultimate game of pure intellect, where the player with the most of that uniquely human trait, intelligence, wins the game. Except that no, turns out a tiny piece of silicon the size of your fingernail c
698.
by jabl 4y ago
IIRC there's a long series on the acoup blog referenced elsewhere in this discussion, that deals with the logistics of moving and feeding an army in pre-modern times. Tl;dr: When you're limited to beasts and wagons, the possible s
699.
by jabl 4y ago
I usually use curl. wget does have one feature that curl doesn't (or at least I'm aware of), namely recursive downloading. So you can easily somewhat download an entire site.
700.
by jabl 4y ago
If apt printing out a small message about Ubuntu Pro, or some short commercial about Ubuntu Pro or Canonical's cloud offerings/whatever show up in motd, I think that's a small price to pay if that ensures the financial wellbe
701.
by jabl 4y ago
To an extent, I actually am. Redhat became successful because they went after and conquered the "replace expensive proprietary unix risc server with x86+Linux but still want a support contract for CYA reasons and that's how we do
702.
by jabl 4y ago
Also AMD being shitty and not publishing microcode updates to the linux-firmware repo so users would get access to them despite crappy OEM's or users neglecting to do BIOS updates.
703.
by jabl 4y ago
QDR Infiniband is, like, 2007 level tech. Today we have NDR Infiniband where a typical 4xHCA gets you 400 GB/s. Seems like a hypothetical Mac cluster would be severely limited by this compared to the typical x86 based server clusters.
704.
by jabl 4y ago
AVX-512 extends the vector registers to 32 (zmm0->zmm31).
705.
by jabl 4y ago
Since this is about Linux, the microcodes it applies on boot can be found in the linux-firmware repository. For AMD microcode, in particular https://git.kernel.org/pub/scm/linux/kernel/git/firmware&#
706.
by jabl 4y ago
I see it has only 4G RAM. Is that really considered sufficient these days? I have a phone with 3 GB, and it's pretty annoying how often it kills apps when switching between them. E.g. switching from Firefox to my password manager or to
707.
by jabl 4y ago
All else being equal, they can't. But the difference isn't as big as some people like to think. For a current high end core, probably low single digit %. And x86-64 has had a lot more effort going into software optimization.
708.
by jabl 4y ago
The electricity-to-wheel efficiency is vastly better for EV's than by creating synthetic hydrocarbons and burning those in an ICE.
709.
by jabl 4y ago
AFAIU algae fuel has been researched since the 70'ies, with little to show for it. Recently Exxon quietly cancelled their algae fuel project. One wonders if it was ever supposed to achieve something or was it just greenwashing.
710.
by jabl 4y ago
It's about jitter caused by the OS, or in this case HW (e.g. due to SMM or similar shenanigans), that can be problematic for real time or HPC applications.
711.
by jabl 4y ago
I guess the thinking when they got started was that this FOSS stuff was for smelly hippies and not serious use. And once the world had converted to Itanium, having to buy Intel compilers to wring decent performance out of it, would have giv
712.
by jabl 4y ago
> Giga is a marketing term related to doing something at a scale that has never been done before Eh, the Heavy Press Program produced 50000 ton press forges in the mid-1950'ies (granted EV's weren't a thing then). Kind of
713.
by jabl 4y ago
One clever thing they did to prevent the porcelain from breaking was that they used tea for the packaging. Not sure what they generally used in those days as polystyrene foam wasn't available, maybe wood cuttings? But if they can use s
714.
by jabl 4y ago
Guess you could do the Suez canal. Per https://sea-distances.org/ it seems the distance between Hong Kong and New York are about the same for either Suez or Panama. Not sure about the prevailing winds, which would be expect
715.
by jabl 4y ago
> Or maybe the current subject matter expert that’s been pouring thousands of hours into this project should be funded by the billion dollar companies that rely on him Ideally yes, but as we've seen time after time, charity as a bus
716.
by jabl 4y ago
That was an interesting writeup and I hope Mr. Valsorda succeeds in this; certainly funding paths for bottom of the stack open source code is sorely needed. However, I don't really think the coreJS maintainer is in a position to do an
717.
by jabl 4y ago
If the coreJS maintainer stops working on it and it bitrots for a year or two, maybe the babel people will magically find the manpower to maintain it then. As it stands, why should they spend their time maintaining a fork of a project that
718.
by jabl 4y ago
SGI managed to hang on for quite many years after their 3D graphics workstation market tanked by pivoting from Irix/MIPS to Linux/Itanium (later x86-64)(saving a lot of SW and HW development cost) and selling those big shared memo
719.
by jabl 4y ago
Yeah. Sometimes I wonder how everything would have turned out had they gone all-in on x86 starting with the Sun386i in 1988 and never developed SPARC.
720.
by jabl 4y ago
The plague of sheep, camels, cows, rabbits, cane toads and whatnot isn't such a good deal for the indigenous flora and fauna.

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