jabl

50 ms·

721.
by jabl 4y ago
There's also postmarketOS, which is more like a 'normal' Linux distro, so probably a better choice if you want to use the phone as some sort of compute node.
722.
by jabl 4y ago
How about we stop this ridiculous nuclear vs. renewables culture war, while fossil fuels are laughing all the way to the bank? Yes, we should build more solar (and even as a 'nuke bro', seeing solar prices drop at the rate they ha
723.
by jabl 4y ago
I'm not saying OHC aren't better, they certainly are (in most respects). Just saying that I wouldn't consider pushrods a showstopper either. (As an aside, when aviation engines started going with 4V designs in the 30'ies
724.
by jabl 4y ago
Adding insult to injury, the standard OBD2 protocol provides parameters like engine rpm etc., and thus with the usual ELM323 OBD-bluetooth adapters you can get for cheap on aliexpress and the usual bunch of phone apps you don't get to
725.
by jabl 4y ago
> The efficiency difference isn't as much as you might think. True, the BSFC numbers of these old school aero engines aren't that bad, actually. > General aviation aircraft cruise at about 75% power. There's much less t
726.
by jabl 4y ago
> I would guess that whatever makes it cost so much would equally apply to this solution once it is certified and not experimental. Bingo! Yeah, I was wondering the same while reading the article. > a pretty ancient design (e.g. pushr
727.
by jabl 4y ago
I think if you want to see 'modern' gasoline powered piston aviation engines, you have to look elsewhere than Lycoming or Continental. ULpower and Rotax make fuel injected aero engines with FADEC. I think Rotax has even certified
728.
by jabl 4y ago
Depending on the kind of yacht, might also be considerably smaller than an automotive engine. I'm somewhat superficially familiar with sailboat engines, and the market leaders in that segment are Yanmar and Volvo Penta. Yanmar, AFAIU,
729.
by jabl 4y ago
I'm no professional boatbuilder, but I've been helping out friends and family with DIY glassfiber boat repairs and improvements. So yes, I have experience of both polyester resin and epoxy. They have their own issues, as discussed
730.
by jabl 4y ago
VLJ's are cute, yes. I'm slightly hopeful about small scale turboprops too. Yes, generally turbines don't scale down very well (well, applies to VLJ's to an extent as well), but if they only could make the capital costs
731.
by jabl 4y ago
I think this is the $100000 conversion alluded to in the article. Not sure what makes it cost that much. Maybe the same thing that seems to have caused GA to stagnate, very small volumes combined with high certification costs. (There's
732.
by jabl 4y ago
The big news in the past decade or so in this space is the G100UL fuel which now has a STC for almost(?) all prop planes. Not sure what the next step, regulation-wise, is. An official 100UL spec followed by the sunsetting of 100LL?
733.
by jabl 4y ago
Carbon fiber certainly has advantages vs. fiberglass. But this article was about the resin material, which forms, depending on the application, maybe around 50% of the weight. But maybe it's possible to produce epoxy resin by starting
734.
by jabl 4y ago
Hmm, we make aircraft, including supersonic ones, out of carbon fiber. So surely the problem is manageable somehow? If nothing else, put some metal plates on the leading edges?
735.
by jabl 4y ago
Yup. Anecdotal story, a friend of my father was making a boat for himself and he became so sensitized to epoxy that he had to stop working on it and hire somebody else to finish it for him. (For boatbuilding, the usual choice is polyester r
736.
by jabl 4y ago
IEEE 754-2008 combined the IEEE 754 with the IEEE 854 decimal float standard, so hence any post-2008 IEEE 754 version also contains decimal float (and IEEE 854 has been withdrawn). But like the parent poster noted, hardware tends to not act
737.
by jabl 4y ago
> IIRC alpha-model memory barriers are still used in the linux kernel. That said, I can't find a clear statement of that so I don't know if it is true or was, or just my own memory. The various memory barriers and locking primi
738.
by jabl 4y ago
OpenTTD is one of the rare remakes of a classic game that has succeeded in significantly improving upon the original. Though I stay away from playing it because it's so addictive. Choo-choo!
739.
by jabl 4y ago
> I guess the utterly competent designers were actually stupid eejits then? No, I don't think that. But I don't think they had some superhuman foresight either, and they made some decisions that in retrospect were not correct.
740.
by jabl 4y ago
Alpha's fate, like the other proprietary RISC architectures that focused on the lucrative but in the end small workstation market, was sealed. With exponentially increasing R&D and manufacturing costs, massive industry consolidatio
741.
by jabl 4y ago
> I didn't interpret you as saying that the F-35B should be cancelled. I'm more bringing context that it's not solely a US Marines toy, and not solely a baby-carrier plane. Fair enough. As for the size of a carrier needed
742.
by jabl 4y ago
I'm not saying the F-35B should be canceled. That would be dumb. All the money has been poured into the project, and the thing exists and works, and even provides some kind of capability that wasn't there before. Just saying that
743.
by jabl 4y ago
TBH, I find it really hard to believe that all the R&D cost associated with the STOVL variant was worth it, instead of just equipping a couple carriers with catapults and arrestor gear. Not to mention that the carrier variant is signifi
744.
by jabl 4y ago
> How much of this was down to practicality, though? Being able to pick and choose the best gear from each side? I'm not an expert on cold war Finland, but my understanding is that Finland was threading a very fine needle between no
745.
by jabl 4y ago
Generally since the end of the cold war NATO compatibility has been a requirement in military procurements. The only exceptions that come to mind is that in the early/mid 90'ies they bought a bunch of ex-DDR equipment at close to
746.
by jabl 4y ago
As a Finn, I trust that the procurement organization made the correct choice, and from what I can gather as a lay person the F-35 seems like a significantly more capable platform. However, the Gripen is certainly a very interesting aircraft
747.
by jabl 4y ago
I'm quite sure if Ukraine had access to F-35 or F-22 there would be stipulations that those would be used the same way. Countries try to be very careful about not giving opponents information about the latest high end gear. This is not
748.
by jabl 4y ago
> I live in a democracy, so its my duty to form an opinion about large controversial purchases my government proposes to make. Of course my opinion on most of them can't be an expert opinion, but it can be at least as good as my rep
749.
by jabl 4y ago
Yup, that kind of thing can happen. Many years ago I was in Norway with a friend, and a truck cut a corner on the road and scraped the side of my friends car. The truck driver refused any responsibility (evidently because we were tourists,
750.
by jabl 4y ago
IMHO the nice thing about sed&awk is that a quick cheatsheet that covers most usage fits nicely on one page. Perl, in contrast, is more a 'proper' language and the Camel book is a pretty chunky tome. If you're going throu

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