skysight-inc/HackerNews huggingface dataset:
Article does mention extra screening times. And we don't know the selection criteria. If it's a proxy for 'has brown skin' as an excuse to surveil and add extra screening to a US citizen that would run afoul of rights.

I don't know, but I assume we don't have a right to avoid extra screening that is based on a 'fair' selection?

The article did mention travel to Turkey as a trigger, which has been in my top 5 places I'd like to visit next. Would suck to get held up for extra screenings just because I went there.
The Peculiar Math That Could Underlie the Laws of Nature
Yes, that (or mixing a pitcher of 3mg melatonin and measuring a tenth of it each evening, or something) would also work. Anything with liquid seems way less fiddly than trying to split pills into >2 parts, I'm surprised I don't see more liquid melatonin at stores or more people who know that they want a <1mg dose suggesting liquid melatonin.
No mention of the antioxidant properties of melatonin or its metabolites.
https://www.ingentaconnect.com/content/ben/ctmc/2002/0000000...
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC3614697/
https://www.fasebj.org/doi/abs/10.1096/fj.01-0309fje

Or the fact it also appears to have an effect on mesenchymal stem cells.
https://onlinelibrary.wiley.com/doi/abs/10.1111/j.1600-079X....
https://stemcellsjournals.onlinelibrary.wiley.com/doi/abs/10...
https://stemcellsjournals.onlinelibrary.wiley.com/doi/abs/10...

Perhaps this is why its called Beauty Sleep?

I also wonder what effect on the sleep pattern these above affects have in the big picture of sleep?

Best sleep I have had in adulthood was water only fasting for 18days recently. The body seems to know what to do to repair itself, perhaps because ever cell has a copy of our DNA in it. There seems to be some knowledge in this DNA that makes cells know what to be and how to perform its individual cellular role for the bigger picture of being part of a body, a bit like individual humans playing their part in a society.
The Environment Is Not a System
I would say 50 percent or more of the items I buy from Amazon are counterfeit. I suspect clothes, almost all books and electronics are fake. Amazon tacitly accepts it to boost their sales figures.
It's about as intelligent as women avoiding being alone with men in fear of being attacked.

In some contexts, perhaps? Generally, no. There are dangers in a lot of interactions yet we still engage in this, there's nothing new about that. This is extreme.
Related.

There's actually not a lot of primary sources on the reticles used in German armour.

So developers of some of these WWII "realistc" shooters have to design new ones.

I would guess there's better documentation of mines and bombs.
Multidimensional Penrose Tiles - is a name i would give to this.
it only takes a couple days to lose your tolerance. if you have to use melatonin, try the smallest dose you can
Don't we have enough vaccines already? I can't imagine that taking even more vaccines is very healthy. Let alone the ones we already take.
BTW brakes are dead simple. Fixing them is a task any self respecting person should be able to do.

Au contraire.

An EV uses a combination of traditional friction braking and regenerative braking, with a sophisticated algorithm to appropriately shift between methods.

If the batteries are fully charged, that means less regenerative braking.

If a vehicle is driven aggressively the batteries are probably already hot, so less energy should be dumped back into them when braking. But at the same time, the friction brakes are probably being overused. How to keep them from being destroyed?

What if a car is yawing or drifting? When stability control kicks in, some combination of friction braking and regenerative braking may be warranted. How much at the front axle, how much at the rear axle, how much at each wheel?

If this were "dead simple", why did Formula 1 teams need a few years to work out their braking issues at the start of the current turbo hybrid era?

We're no longer in the days of a master cylinder responding to pressure from a driver's foot by simply sending hydraulic fluid to drum brakes.

Sure, simple maintenance such as replacing brake pads in most cars can still be DIY. But "repair" in general is no longer simple.
No, there's no effective difference between those examples, apart from maybe post mortem analysis. It's also a poor method of key discovery, as hueving said.
What happens when your first coding experience is test automation?
centralized state power tends towards authoritarianism, shocking. certainly not a compelling defense of capitalism though.
Homeless man asking for people to take a resume
Same here, but it's because I find it very easy to recognize the Chinese "brands", signs that a product is just Prime arbitrage, fake reviews, etc. If you want a selection of these lower-quality listings, take a look at lightning deals. I think actual counterfeits are fairly rare compared to just garbage knockoffs, but I also don't buy many products that are highly counterfeited.
I'm working on a simple web app to share ideas for side project.
I'd love to "show hackernews" some day, but it's not ready yet.

- Code is at https://github.com/sne11ius/egghead.space

- Pre-alpha-ish version runs at https://egghead.space

Also: my tan, since the weather in germany is awesome this summer :D
Cheat Sheet for Android Interviews
Ideally a bedroom needs to be so dark that if you hold you hand up inches away from in front of your nose, you cant see your hand in any way.
You may also want to consider good ventilation in the room, if CO2 levels get up to around 700ppm which can happen in a few hours of going to bed, you will also wake up feeling less refreshed and groggy. Its why they have CO2 scrubbers in submarines and why people feel more refreshed when camping under canvas.
Sleeping at the back of a large cave doesnt seem so bad now.
We should lay judgement more on this being a sign of the times than the fact that it is "young people" doing this. So what's the implication, that the young are stupid? It's our culture, we should own up to it. If any significant amount of the mainstream news were considered to be outright propaganda, then you wouldn't find their behavior odd - right?
It's interesting, my Dad is white but has a distant ancestor who was Greek, with the result that he looks a bit Middle-Eastern. Predictably, when travelling in Australia/USA/Western Europe he gets the random screening treatment every time.

On the other hand, I look like a young white guy and whenever I travel to Asian countries, particularly South-east Asia, I routinely get the extra drug search at customs.

I wonder if they should all just drop the whole "random" charade and optimize the system for the biased policies: it's not fair but at least that way people might be able to make their flight.
My guess is to get an economically height difference to the dam.
I associate it with The Register. A lot of British slang sounds silly to Americans.[1] Construing it as derogatory is not an expression of American anti-intellectualism. It's the opposite - the term sounds to us like it's making fun of smart people especially due to certain writers overusing it.

[1] A parody of this: https://www.memecenter.com/fun/3500907/my-face-when-american...
I never took it because I read a long time ago that it causes your body to decrease melatonin production long term. I guess that’s just a myth because people in this thread seem very positive about using it long term.
Java has BigDecimal in the standard library. That gives you arbitrary precision. Also, using a double instead of a float gives you a bit better precision. The performance hit of using double instead of float on modern hardware is not something that should be a showstopper.

I don't get the argument about libraries and performance. We're talking about companies using emulators of ancient hardware to run decades old software. Pulling in some library is a complete non issue from a performance point of view.

Speaking of hardware, that is magnitudes faster than anything imaginable when most cobol was first written. Performance is not the key concern here.
I'm aware some (but not all) forks were not searchable before. Always considered it a bug in their software. In this case, however, I'm referring to is search by repo name. Would you expect forks to appear by repo name in search?
Given that people can relate to plenty of other experiences, I'm not sure why they wouldn't be able to relate to such a common one.
Just curl it to tee or redirect to a file and you know it won't change before you execute the script file.

There's nothing stopping somebody from even more trivially just sending each IP a benign script once (per curl user agent) and a malicious script the second time. Putting it in a file and executing the file brings it entirely into your domain of control.
Probably it's not nuanced - John Deere like to do this sort of thing too.

See my comment from March 2017:

https://news.ycombinator.com/item?id=13929078
Pump storage plants are used all over the world for decades, that they are more efficient than Lithium batteries should surprise no one.
How to Open a Bank Account Online in 10 Minutes
Sure, but that's true for everything, there's nothing unique about parenting here. I.e., you similarly don't have quite the same experience as a no-kids person who has depression.

Yet this argument seems to come exclusively from parents, assigning parenthood a special status, which makes no sense, since parenting is extremely commom.
Real Concepts for Personal Electric Aircraft – EE Times
Less dangerous: they have skin in the game if they fuck up.
By “could not take down” do you mean “could not occupy the space of”, or “could not overcome in a battle”?

If occupation, there’s more to it than guns.

If battle: the military has tanks, which are highly resistant to small arms.
> Don't we have enough vaccines already?

No.

Norovirus results in about 685 million cases of disease and 200,000 deaths globally a year. It is common both in the developed and developing world.[1]

1. https://en.wikipedia.org/wiki/Norovirus
My ignorance on this subject is a vast abyss, but reality seems to work OK with this, because "subjective" and "objective" time can be decoupled. The world doesn't really care if your video camera takes a snapshot every 1/30th or 1/60th of a second, it'll keep doing whatever it is doing at its own pace.

Can't a virtual world be built with the same principles?
"Incredible" could be considered ambiguous. One can only speculate how it was meant.
China Kills Qualcomm-NXP Deal
This is true for lots of things, though, many much more exclusive than parenthood, why is having kids singled out?
No justification necessary. These are merely observations I made and have presented here. Unpopular as they may be I feel it's important to start having these discussions early and in a threaded manner.

It's nice that GitHub has some competition now. After looking at GitLab I didn't see a whole lot to love personally. Seemed over-engineered in the CI/CD department and basic features like pull mirroring aren't available in their CE version.
New Malwarebytes browser extension for Chrome and Firefox aims to keep you safe
Can you post some of these listings? I’ve never gotten a counterfeit item from Amazon
PTSD, depression, poverty, lousy roomates, crappy job, etc., all can generate experiences that are not so dissimilar to what you describe. Including, some of these conditions can cause suicide, which might imply they're much worse than parenting, which, ultimately, is perceived as a positive.

Why is parenting, something that gets lots of external support and understanding, the special one here, and not any of these other things? Depressed people don't get a "my life is so hard" horse to sit on continually, often quite the opposite, they have to work hard to hide it.

There's no evidence that parents are special people, none whatsoever, they are best described as people in a tough situation, but there are quite a few different ways to be in a tough situation, and tough situations do not always make people better.
Having a pool of software devs to draw from

Well, in a world where everyone is self-taught from what’s trending at the moment. In the old days if companies needed someone with particular skills they would train them and make an effort to retain them. Now the cost and the risk has all been pushed onto the employee.

It should be a simple equation: cost of training vs cost of rewriting every 2-3 years...
Thanks a lot for iTerm2.

BTW, I'd love to help to add overline support. Mind if I open an issue and ask for some pointers?
Providing Equitable Access to Computing Education
I think that analogy somewhat breaks down because, aside from action taken by specific companies, the non-repairability of modern laptops in general is heavily driven by the endless desire of consumers for lighter and thinner devices with more battery capacity.

By contrast, for modern electric cars weight and size has so much margin that it's basically a non-issue aside from the complications of fitting the battery into the chassis.

It means that car companies have far, far less of a genuine engineering-driven reason to make devices that are impossible to repair at home or in small shops.
Personally I found cmder together with WSL best on Windows.
Tesla doesn't do body work, it's all done by 3rd parties.

But if you don't buy iDevices for that reason, you probably don't want a Tesla. Me, the one time I broke a screen, I used a 3rd party repair service, no problems.
The sleep cleverness is excessive though - what you really want to know is if the script you're returning is being executed as it's sent. If it is, then you can be pretty confident that a human isn't reading it line by line.

1. Send your response as transfer-encoding: chunked and tcp_nodelay

2. Send the first command as

curl www.example.com/$unique_id

Then the server waits before sending the next command - if it gets the ping from the script, we know that whatever is executing the script is running the commands as they're sent, and is therefore unlikely to be read by a human before the next command runs. If it doesn't ping within a second or so, proceed with the innocent payload.

For extra evil deniability, structure your malicious payload as a substring of a plausibly valid sequence of commands - then simply hang the socket partway through. Future investigation will make it look like a network issue.
Show HN: Intime – Become Riches Overnight
Languages as libraries (2011) [pdf]
every engineer trained in the last 20 years at least has some C experience.

I think that’s a massive exaggeration. Most people these days think JavaScript without a framework is “bare metal”.
World’s fastest man-made spinning object could help study quantum mechanics
Planet Money as well: https://www.npr.org/templates/transcript/transcript.php?stor...

They don’t seem to ship the actual items but random junk instead (to get a tracking number?).
Every Silver Lining Has a Cloud
good like trying to scale it out

COBOL demonstrably scales sufficiently to run the entire global economy, so no luck required.
why not process amounts as integer cents?

Trading is actually done in “basis points” or “pips” which are 1/100 of a cent
It has a very long road to travel regarding OS APIs and the Android team evaded the question at Google IO about what was their opinion regarding Flutter.

Additionally, according to the Chrome team, also at IO, the way to do iOS and Android development is via PWAs, not Flutter.

This is just Google playing with their teams.
How to Teach Computer Ethics Through Science Fiction
That's interesting, because I think I generally took it as pro-extremist. While it may have created revulsion by design, it seems so thoroughly devoid of a positive alternative, that it never really occurred to me that the author might be against terrorism or fascism as a means to a sense of authenticity and purpose.

After 9/11 I found the foreshadowing of the end of the movie to be disturbing and wondered if it inspired anyone. I can't remember when I watched it (not in the theater so it might have been afterwards).

Edit: I saw the movie and did not read the book, for clarification.
Anyone knows why Melatonin is available so easily in the US, but you need a prescription for it in Europe? (I haven’t asked my GP though)
How ironic that an engineering mistake which produced a unique "bad" batch of transistors also produced another engineering mistake. It's bad practice to make use of not reproducible parts, especially as such a unique noise source which basicaly defines a musical instrument. One of the most iconic electronic musical instruments ever created was born by engineering mistakes!

But, is there even a way to produce and reproduce a consistent physical noise source that generates the same noise with each physical copy?
As am I. I get pulled aside for the explosives check around 50% of the time when departing on an international flight from Melbourne airport.

When I'm not tested, then there is typically another group being tested. They seem to utilize the testing machinery/staff close to 100% of the time, so if you're the next group of people as their finishing up, you're likely to be tested.

Not to say there isn't any bias, but I've never noticed a larger proportion of dark skinned/long haired/bearded etc. individuals being tested vs the departing passenger population.

I travel often and the Australian airports certainly seem to test a much higher percentage of departing passengers than other airports.
I did try this a while ago (with ConEmu instead) but got into some filesystem issues when working outside of the lxss owns filesystem. You have no issues there?
Ask HN: Good resources to learn about mission-critical distributed systems?
I've been reading up quite a bit on distributed database and compute technologies like Spanner/MapReduce as well as some interesting blog posts on scaling out of Facebook/Twitter/Netflix.
That got me wondering how even "harder" problems - like Visa's payments system, or the global stock exchange network, are implemented. In these applications, the problem is inherently planet-scale, correctness is of utmost importance, and latency is still very, very important.

I haven't been able to find much online on how applications like these are designed, verified and implemented, so any help will be appreciated!
Ruby had a bundled distributed tuplespace implementation (Rinda) for many years, built on top of druby.

I remember playing with it, and wondering why it wasn't more popular.
Linux/BSD distribution mirrors don't control the package signing keys, maintainers do. Similarly, Google doesn't possess the ability to push out updates for third-party apps, without fundamentally redesigning the OS with a platform update, because the signing keys are owned by the app developers, and the existing OS rejects updates signed with different keys. In both of these situations, the key owners lack the ability to selectively push out signed updates, unless they also control the distribution infrastructure.
Edit: Duplicate of >2 articles within the past week with 40-140 comments.

From other coverage I believe the Google branded keys are physically just like keys from Feitian, but white instead of black. The picture of the Bluetooth version also looks like the same item as the Feitian Multipass.
No need for a prescription in France.
Procedural abstraction
The facial recognition can be improved automatically by hooking in mobile phone cell tower tracking (cell tower traffic management) in realtime which I believe the police here in the UK also have, then over time the realtime cctv's can also adjust for differences in the camera sensors, like colour hues and white balance, because not everyone is going to follow the same route at the same speed at the same time as everyone else. Its not hard to do if you join up the technology that is also in use, including cash machine usage, shopping payment systems, car park ticket machines, etc etc. Individually, facial recognition on its own has more weaknesses than if its joined up with other tech where users leave a digital footprint.
If you take the new electricity smart meters being rolled out in the UK and elsewhere, over time, it would be possible to work out the devices in use by the amount of electricity that is used and the pattern or profile seen of electrical consumption.
EG, if you saw a small increase in use of electricity at 4am for a about a minute, you could surmise that someone has turned a light on and possibly gone to the toilet. Over time, you will the same or similar amount of electricity used which could then be used to monitor the toilet habits of the individuals in the property. This could be a measure over the years for prostrate problems if its known a male lives in the property, as an example of how the data could be used to hilight medical problems. If you take a washing machine, this might be hot fill or cold fill, but you could watch the consistent increase & decrease of electricity as the washing machine goes through its cycle, finishing up with a spin cycle. Machines are excellent for consistent demand of electricity. In time, you could even work out what cycle or programme has been selected on the washing machine.
When combined with other devices with their own electrical demand patterns, you could work out everything electrical in use, and also identify or predict faulting electrical devices. So the electrical companies could predict wasteful users as well as conservative users if other factors are known like the type of properties, useful or made easy on new build housing estates.
This in turn can also be combined in realtime with police systems taking you closer to the fictional minority report, so police could be on hand to prevent a situation in the home or in the street, which I would hope they would be there to do, rather than just arrive after an event and pick up the pieces as this is also traumatic for them seeing as they are also human beings.
Accelerating GPU Betweenness Centrality
Flask tutorial for non web developers (great for demos running in browser)
this is terrrible. no births in this population, and i think they have had at least two deaths in the existing population this past year. in may of this year, the southern residents were not seen by researchers, at all, which is unheard of. they are really spread out trying to find salmon. that specific population has been heading towards exinction for some time now. :(

this is all due to the horrific captures that happened in the late mid-century for captivity, the ecosystem damage, dammed rivers blocking salmon from reproducing, salmon farms, toxicity levels in the prey ladder, and more, all due to selfish human behavior. we are more concerned with bleeding as much money from “ai” and going to visit a dead rock than we are with protecting the most vital source of life on our planet (the ocean), the likely origin of life, and one of the shining examples of intelligence in the animal kingdom.

orcas are truly an amazing species. they are far more intelligent than generally recognized, even surpassing primates (including us) in certain areas. and they are damn emotional. it is really a travesty how humans interact with other intelligence on the planet.

https://msu.edu/~marablek/whal-int.htm#sect7-1

https://pugetsoundblogs.com/waterways/2018/06/29/two-deaths-...

https://www.seattletimes.com/seattle-news/southern-resident-...
Maybe no more efficient, but probably better against shear stresses along the direction of the columns.
I also liked Sam’s point about how it’s easier for startups than big companies to work on non-consensus ideas. At a big company, you need manager 1 and manager 2 and manager 3 etc. to approve a project. Whereas at a startup you need investor 1 or investor 2 or investor 3 etc to fund you. At a big company, a single no kills you. At a startup, a single yes saves you.

(Not sure the point is entirely true - like, Sundar Pichai is not approving every small project at Google - but there is a very different structure to ‘and’ problems vs ‘or’ problems.)