skysight-inc/HackerNews huggingface dataset:
> Why didn't the sensor fall back to its backups?

MCAS was added to the autopilot/flight computer system, which was brought forward from previous 737 designs, where there are two flight computers, each with an independent set of sensors; in case of disagreement, between the flight computers, autopilot would disengage and return control to the pilot. And in general, the types of things a pilot would do in response to commanded nose down would disable the autopilot until manually engaged again.

Unfortunately, MCAS acts autonomously, was not disclosed to pilots, and was not able to be disabled without also disabling electric trim control. Because it was built on top of the existing flight computer, which is safe enough, the behavior doesn't appear to have been separately considered.

From what I've read of the proposed fixes in news stories, it doesn't really address the root issue in my mind that the pilots should be able to turn off MCAS; although it does seem likely that it would activate erroneously less often, and that the plane will remain more controllable in the event that it does activate erroneously, it still seems like the situation would be dangerous in case it arises; which would seem possible if both Angle of Attack sensors failed in the same way at the same time. A third AoA sensor might help detect broken sensors, and make it less likely that all three would return the same wrong value simultaneously, but a switch to turn off MCAS would follow the Boeing philosophy of giving pilots control and letting them handle rare events.
cool maybe I'll start answering my phone again someday
They didn't mention the 4x5 look, 4x5 is huge [0] and gives you an insane amount of detail with shallow DoF, perfect for portraits. What cracks me up every time is that his camera uses a lens made for reconnaissance planes during ww2 [1]

I'd encourage anyone interested in photography to try film, gear is quite cheap these day (I just bought a medium format lens for 100$, it used to be sold for 1500$ less than 30 years ago), it's quickly getting more expensive though. You can easily develop your own film at home and scan it yourself too

[0] https://www.thephoblographer.com/wp-content/uploads/2014/06/...
[1] https://lommen9.home.xs4all.nl/aero/
Me too. The speed of using "j" and "k" to navigate articles (that load instantly) feels amazing.
It might shock you, but this is far from the first time an airliner crashed due to fixable problems.

Time heals all wounds, so to speak. Boeing suffered a pretty bad PR problem, which then drove cancelled orders and more. It will take time to earn that trust back with the 737-MAX, however there's still plenty of 767, 787, some 747, and a few 757's still flying without any problems.
This is great stuff, dang. May I suggest you post this in a blog or something? I think HN readers would benefit from reading about some of the philosophical grounds and intent upon which HN is built.
against TOS
it is not uncommon do mothball planes and return them to service.

Here is a decent article from when many were mothballed in 2009:
https://www.cbsnews.com/news/airlines-park-idle-planes-in-th...
You don't need a beam splitter to listen in on traffic.
No Strings Attached [video]
Is it just me, or is it weird how little reference there is to Airbus or Comac or Bombardier? If you want to talk about financial issues for an aircraft manufacturer, and their accounting model and risk, surely you need to talk explicitly about the comparable at-scale entities in the same market?

I think the underlying one-paragraph hit which I paraphrase as: the way the cost of the hole they are digging is buried into future sales is not making the author comfortable is something which really demands discussion of Airbus accounting. If they also do this, if the entire industry is using future profit models to justify up-front capital and operational spend, Then its not just risk in the US markets, it's worldwide.

(at some level it's worldwide anyway: the investor model these days can't stop at national borders unless the investment itself is regulated, which may be possible in the case of Boeing, I don't know)
Alcebiades
They bend the cables, thus allowing part of it be tracked with some residue light coming out of the fibre.
Heh perfect for about 13ish days from now...
I don't think that number is too crazy. I did my own back of the envelope analysis and got $1.5B in early stage r&d spend per approved drug discovered by big pharma. If you add a few hundred million for late stage r&d (big pharma spends about the same on late and early stage r&d) and then include cost of capital its in the ballpark of that number
Hah, I didn't notice it was you who I was responding to. How nice of me to tell you the size of the OS you helped write ;-)
At one point in time the US State Department and presidential admin would've been able to negotiate, coax, or strong-arm other countries to certify things they were reluctant to. With a gutted state dept and an admin full of incompetence, this wouldn't happen nowadays...
Well the app store can be compelled to push unique updates. It's more work, but it isn't an impossibility.
So, the problem with targeted calls isn't the unsolicited communication, but that if politicians could send customized messages, they might sometimes send evil ones?
For expensive $50+/click keywords i am sure there is a whole team tweaking SERPs in favor of "good" customers.
> The response I get is we don't _NEED_ a CI/CD

You are not making this sound like less of a red flag!

But yeah, if you are both new and young there, you can't just push hard for all the things you want. But in this case... you're right, heh.

If I were you, I'd be keeping my eyes out for job opportunities in environments where you can actually learn something about good modern software engineering practices form their example. (Easier said then done, don't I know it).
LCOE in the lazard report is a forward looking report for comparing costs of new builds with current and past tech.

The prices you are quoting have sunk costs into them and don't represent total system costs of the initial build for example. As French nuclear plants from earlier investments reach end of life, France itself is estimating the need to introduce a higher portion of renewable and expects to save time and money from it.

https://www.bloomberg.com/news/articles/2018-12-10/french-po...

"France will save 39 billion euros ($44.5 billion) if it refrains from building 15 new nuclear plants by 2060, and bets instead on renewable energy sources to replace all its aging atomic facilities."
Linux Mint 19.3 “Tricia” Cinnamon Released
And if one of two sensors fails, which these exposed sensors do often, how do you know which one it is?

Intuition says you need three.
> Obviously they're unlikely to ever come back.

I recognize this is a common attitude, but it makes no sense to me.

Some software you tried today isn't designed in a way you prefer, so you go back to using something else. Okay. Makes sense.

But to declare the whole project forever hopeless as if it can never be improved upon because the snapshot of your first experience with it was negative is truly irrational.
My point is, C doesn't give you enough tools to build an elegant, easy-to-use interface, so people reimplement things over and over again. So in typical application code you see people using the "interface" in C++ but manually inlining the "implementation" in C. And what's why it is a fair comparison.
I’ve never understood why (stock|crypto|asset) pricing seemingly attracts so many people to make absolute statements that should be phrased as predictions.

Are you positive that profit taking will take place soon? If so, will you bet your entire net worth?
No, typical communication satellites operate in geostationary orbit, 36,000 km high. Signal must go up that far, then down again. The earth's circumference is 40,000 km, so you've traveled more already (and yet, are still in the same area because I didn't count transmitting to another satellite -- which AFAIK is never done: the satellite transmits back down to somewhere where the data can be transmitted trough fiber).

Assuming light travels at 2c/3 in fiber, it would still take less time for a signal to go around the equator back to the same spot than for it to arrive anywhere on earth if using a satellite link.

Spacex's satellites are a game-changer because they sit in low orbit.
Do you have an example of how?
The speed of light in glass-fiber is about 1.5 times slower than the speed of light in a vacuum. Hence the extra distance for lower-orbit systems can be canceled out by the extra speed of signals.

This is only talking about latency. Bandwidth is a different game. Sure, any given fiber link will probably have better bandwidth than any satellite link. Cause the medium in between is much more consistent, leading to less signal degradation. However, fiber needs to be placed, connected, maintained. Moreover, fiber needs a physical space.

Meanwhile wireless just needs access-points at both ends, well-aimed antennas, and little interference in between. Notably, I believe star-link will use laser communication for inter-satelite communication, which essentially means perfect directional antennas.
This stuff might be able to scale faster. It can certainly scale further because you don't need the space for all those cables.
> people frequently request justification when they're rejected romantically. This is also why people get ghosted while dating nowadays.

I'm not sure I understand this. I'm under the impression that ghosting people while dating is a newish phenomenon. Is requesting justifications a similarly newish thing? If one didn't change, why would the other? It doesn't seem like we've gotten to the root of the matter.
Is Smalltalk a weird cause to fight for?
Change the code to listen to both sensors? And which one should it use as truth when they disagree?
The familiar presence of a manager over your shoulder saying "A stopped line costs us eight hundred dollars per minute."
Good Curation like editorial, is what I miss most about print media broadsheets. Its like the whole Ed Meese pornography/erotica thing, you can't quite define it, but you can tell it when you see it. (In that spirit I love Terry Pratchetts take, erotica is being tickled with a feather, pornography is being rubbed by the whole chicken)

I signed up to the free tier, to see what his curation is like. If its as good as laphams, I could be there.
My editor (Sublime + GitGutter plugin) is set up so whenever I click in a certain line of code, it displays a hint out to the right with the summary line of the most recent git blame on that line. It's pretty fast...maybe 1/2 second delay. I've found this really, really useful. As you say, commit logs can hide unless you're looking for them, but very often, the most recent blame (and even just the summary line of that blame) gives me really useful information.
Due to the overwhelmingly high amount of attempted fraud in grey/black market VoIP stuff, it's pretty common for wholesale SIP trunking providers to now alert the account owner whenever the web account control panel is logged into from a new, unknown ISP and/or useragent.
I’ve never seen Java running on Windows 3.x - how long did they maintain it for? Or did it use Win32S?

Update: ah, Microsoft released their own port in 1997: https://www.cnet.com/news/ie-gets-java-for-windows-3-1/ - I wonder how long they maintained that for.
So {((p-1)/2)!}^2 == -1 (mod p), which means that {((p-1)/2)!} is a solution to x^2 +1 = 0 mod p, and therefore there is always a solution (for p = 1 mod 4). I see.

And this breaks down for p=4n+3, because then (p-1)/2 is odd, and we can't pair the terms that way. But... maybe I'm being dense, but I don't see a way to extend this to prove the other side: that if p = 3 mod 4, there are no solutions. (We've proven that this way doesn't work to construct a solution, but that's not the same as proving that no solution exists.)

Thank you very much for the help this far. This is one of the absolutely cool things about HN - some random guy asks a question, just because it interests him, and a Cambridge PhD gives him time, for free, to help him learn a bit more.
You are entirely right.

I am scared that our "AI" (really ML) future will be ML trained from bad data and it's pre-crime-fun for anyone that just acts a bit weird or tries to not stand out too much.

I hope there are enough people like you in the institutions where it matters to be all "hey, wait a fuckin SECOND here".
Slightly overkill, but just as a thought experiment, it would be neat to have something where you declare calories / macros / food preferences, how much time you have to cook and how many cheat days you want.

Then the system will figure out all of the ingredients for you, ship them to you through Instacart on a regular basis, put reminders on your calendar for when you should cook what, and optimize both for nutrition, variety, time and food waste.
I remember a life before RSS. You would literally subscribe to online news emails delivered to your email inbox on a daily basis. And for me it was a Hotmail email inbox with a USA TODAY email delivery.

Every morning, a USA TODAY news email delivery in my Hotmail inbox.

Then came RSS. I didn't understand or pay attention.

Time passed. People died. People claimed RSS died. Podcasts rose into popularity.

I began paying attention to podcasts. And began subscribing to them via RSS via an Android App. I am doing this still, now, today.

For me RSS is not dead. I actively look out for RSS feeds on podcasts, online web comics, and similar.

I understand that Google Reader had a "bull in china shop" influence against RSS, but for people like me there is still RSS.
this is very nice UI, and with some improvements, would be very handy.

Some feedback -
1) It should provide additional filters like 'gluten-free', 'histamine-intolerant' etc.
2) When I suggest 2 meals, it assumes that it is breakfast & lunch - when I might be thinking - lunch and dinner. Allow user to pick the option.
3) When it provides me the choices - lets say breakfast - eggs, onions and tomato omlet, then it should list these 3 ingredients - and i am allergic to 'tomato' - i can then scratch it off and ask it to 'refine' -- the next time, it should not return dishes that have tomato in them as a main dish.
I think the issue is that the cracks start to appear only after future projections badly miss, like when finished planes get parked. Did that happen with Airbus?
That’s correct. This info is especially useful on large puzzles.
> I don't think I've ever seen "fun" and "aws console" used in the same sentence before.

In my opinion AWS Console is one of the best designed from all cloud providers out there. GCP is years behind, even with $100k credits I just can force myself to use that pice of unusable crap. Probably Material Design is here to blame, as it's terrible on web.

DigitalOcean does a great job with their interface but they don't even have 1/20 of features offered by AWS, at the end it will share the fate of GCP. Being extremely bloated. :)
Sounds like it brings lxd(like experience) to win/Mac? Do the leverage juju charms?

Eg like here (sadly, I don't think this excellent series ever got an update - it'd be nice to see something similar targeting the latest lts..)

https://ubuntu.com/blog/lxd-2-0-lxd-and-juju
You're missing the point. I make an app that prints charts. It includes a function that subtracts user-specified margins from the paper width, to calculate available space. Some of my customers are in the U.S (inches), others are not (cm).

If I call

printPage(0.75, 0.75);

you really think it's going to be all the same whether "0.75" represents inches or centimetres?
Made me think of the whole labrador dogs cannot hide guilt thing, which is hugely anthropomorphic but it feels like it should be true: if they learned how to model positive and negative human emotion to communicate with us for their advantage, they probably learned shame as well.

Reddit is awash with videos of Labby dogs doing a really bad job of saying "I didn't do it" or of dobbing in the innocent puppy, or whatever.
I really hope physical proximity is also some kind of handshake with the device, and not spoofable in-app "GPS"
The Silurian Hypothesis
There are considerations other than pure technical prowess, and if you're failing on any of these counts, some feedback could really help in the future.

- your CV could have undersold much of your expertise
- you may have come across badly in the interview for multiple reasons, from shyness to overconfidence
- you might not have prepared sufficiently for that specific role in that particular business in some way
- you might have acted in a way which gave the impression that you were immature or unprofessional, from your attire, body language or communication style

Any feedback which can help you improve selling yourself and make a better impression is useful.
Twice seems a very low.
> declare functions that run at compile time instead of run time, instead of macros.

Lots of languages have this, including C++.
i'm very interested in this! can we chat somewhere?
I think the decision to tank on the 380 was a sign, yes. I think Airbus is carrying a large debt, as a result of under-achieved sales on the unit, and a huge sunk cost. I have read stuff implying it barely got above its investment costs including R&D, before it stopped. The Max is possibly a bigger hole. the 787 was a huge hole, because of the battery fire.

Comac, I wouldn't know. Bombardier is now in J-V land which may be recognition of the limits of what they can do with their own money.

I could also say it reaches into Rolls-Royce. Engine leasing is funding engine development: if they stop future sales, because people select GE engines, are they actually in profit purely on the operational charge model of the engines sold?
Ah, thank you for the additional information. Is my grapevine information correct that more work will be done to improve video calls and screensharing in the coming months?

As an example of what could be improved, I do still encounter the occasional bug with call synchronization, the video stream of one of the sides not getting started on occasion and screensharing is hardly discoverable.
Pretty basic, I buy 3 or 4 heads of chinese cabbage. Dice it up in to 1 inch squares roughly. Add grated carrots, ginger and onion. I then soak that all in salty water (about the same saltyness as the ocean) for about 4 hours. Then I rinse it all twice. Finally I add three or four table spoons of dried red peppers finely ground, three or four table spoons soy sauce, three or four table spoons fish sauce. Finally I put it in a big pot and let sit at room temperature in a dark room for 48 hours. After that into jars and into the fridge. I eat it twice a day usually breakfast and dinner, not even that much. After years and years of lansoprosol, omeprosol and xantac, and tums tums tums, not one hint of heart burn since.

Edit: and garlic, 2 or 3 whole heads. I usually blend the garlic, as pieces of garlic turn blue or green and look odd
> I'd like to have a lightweight idea board for some projects

> Something that leaves less clutter

> Ideally it should be simple, free & open source, and easy to self-host.

> Ideally it should have nothing to do with Atlassian.

I don't think JIRA fits into any of those criteria.
Noticed a bit of a load spike, cool to see our site posted on HN :) Let me know if you have any feedback or questions and I'll do my best to respond.
Mattermost is currently a better UX with a more stable codebase, but I suspect that the Matrix/Riot federated model will one day overtake Mattermost.

Personally I use Mattermost at work and Matrix/Riot for personal chat. If Matrix/Riot began to overtake Mattermost in terms of UX, we would probably replace Mattermost with Matrix/Riot at work.
That's actually not universally true. SpaceX would happily share feedback with you (or at least it did in the past). FB will share it if you request it.

This strikes me as a more "honest" and transparent position on the issue, and it also forces the company to stay well clear of race/gender/age/sexual orientation/ethnicity/etc as _latent_ disqualifiers (it's never overt, mind you), because factual justification is required in the feedback.
Nothing. Many people avoid software versions ending in '.0' because they worry they may be buggy.
This is why I've been saving PDFs/HTMLs or even just taking screenshots of webpages I find especially meaningful or important to me... Archiving things as files this way can get kind of tedious and definitely feels primitive at times (we made the LHC but I'm here not expecting the same pages of cool interviews, designs, etc. to be up next month), but what can you do?

But it's nice to know you're not alone in wanting nice things to last :)
I can't think of any examples where 'scrutiny of public markets' caused positive change I would the company, can you?

I have seen 'wrath' of the public markets causing the company to collapse. But here that's highly undesirable, hence I see the OP's question as quite reasonable.
twice a day, not much, like a few chop stick grabs.

Since I am slow to respond and the post is a bit old, this is what I said to the guy who asked me how I make it

Pretty basic, I buy 3 or 4 heads of chinese cabbage. Dice it up in to 1 inch squares roughly. Add grated carrots, ginger and onion (and garlic, 2 or 3 whole heads, forgot to mention this to other poster). I then soak that all in salty water (about the same saltyness as the ocean) for about 4 hours. Then I rinse it all twice. Finally I add three or four table spoons of dried red peppers finely ground, three or four table spoons soy sauce, three or four table spoons fish sauce. Finally I put it in a big pot and let sit at room temperature in a dark room for 48 hours. After that into jars and into the fridge. I eat it twice a day usually breakfast and dinner, not even that much. After years and years of lansoprosol, omeprosol and xantac, and tums tums tums, not one hint of heart burn since.
This. If you see the oceanic cables every x amount of kilometers you'll see a bump in them: that's the amplifier. There are also junction points too where cables can split off to serve locations on the route. Newer cables have the ability to dynamically reconfigure these (wavelength switching) these junctions rather than be static (the older way).
I went reading the linked intro to Fully Homomorphic Encryption [1]

>This means you can multiply together any two Elgamal ciphertexts, and upon decryption you’ll find that the (single) resulting ciphertext now embeds the product of the two original plaintexts. Neat!

Coolest thing I've read in a while.

[1]-https://blog.cryptographyengineering.com/2012/01/02/very-cas...
Interesting setup. Have you heard of Cloudflare Argo by chance? Was thinking of using that, although this seems like a perfectly fine setup itself.
Database exposed 267M Facebook users’ phone numbers, names
Facebook, for the sake of VR, get your shit together
I'm working on a low-bandwidth cloud development environment for remote work using Terraform, and I currently have a bastion box, no incoming firewall rules for the non-bastion hosts, but they do have public IPs. I'm guessing this is the ideal use case for Cloud NAT?

I'm a beginner so I don't want to make any elementary security mistakes.

In the setup tasks - I need to create an osLogin permission, which means my service account for terraform needs elevated permissions, is there a better way of managing this? Could I perhaps configure that account with `gcloud` and then do the rest with terraform? Is that more secure?

Additionally, I want to pull code from github to non-bastion instances. Is there a good way to get a ssh key onto each box, securely and automatically, to allow github access? Consider that I might want to spin up a new disk and instance for dev at any time.