skysight-inc/HackerNews huggingface dataset:
Thanks for the reply, yes I am aware of biochar but wasn't sure grass was a suitable source.

The latest research seems to show that done properly, biochar can improve crop yields substantially, so that could be a way to pay for the process, but the other aspect is that it can be produced in a very low-tech manner, which is almost certainly the situation in many or most parts of the world.

How are you planning 'geological carbon dioxide sequestration'? I'm not sure of the chemistry/process, but is burning the charcoal completely actually necessary to produce hydrogen? It seems not, to me. The cynical view of course is that you will omit the costly sequestration step, which makes this just another biofuel endeavor, with the attendant pros, and, mainly (IMHO), cons...
The U.S. is more wealthy and has a large private aviation community because private individuals can afford to buy and are permitted to fly their own small planes. As s result, it is easier for Americans to build up experience as aviators before going to work for an airline.
Do people care about that?

This isn't a trick question. I've had two jobs for the last three years; one was sporadic, part-time, and technical, and the other was full-time horrid mostly-unskilled drudgery. I'm not sure whether or not to list the drudge job on my resume.

Maybe I'll A/B test it...
MTN wants to launch the “WeChat+of+Africa”, will it catch on?
Yes, I learned it the hard way. My reasoning was that alcohol doesn't "free" your mind like cannabis or LSD does, so I will not trigger psychosis. But it still has effect on your brain chemistry.
I am almost sure that some engineer of Boeing has noticed that there was a major design flaw with the function of the MCAS, but that he was overruled by a less technical (and probably younger) superior.
Like children commenters said, comments are very useful if there's a community around your site. For my personal blog, comments were mostly "thanks" and sometimes angry comments about how I didn't like the thing they liked, although these were rare.

There were sometimes helpful corrections, but those came largely through email anyway, and, since I update the articles when I receive a correction, the corrective comments instantly became obsolete.

I just remembered the biggest reason why I removed comments: Spam. The added value wasn't significant enough (due to the reasons above) to warrant spending the time I spent removing span comments. Make a popular post and you'll get a whole bunch of "What a great post! Check out my thing: <thing>". I didn't want to spend more time moderating so I just disabled comments.
You are getting new EV certificate every time.
Don't forget the people lecturing them for the full 30 minutes that they're busy installing a new OS.
> The package manager method of updating stomps on the in-use libraries for the running application.

This is not a problem on Unix-like systems, actually. Any running process, that has some file open, will keep the original file open, even if the filename points to another file now. Only processes that open the file after the change will get the new version.

I suspect that the protocol that multiple processes of Firefox used to communicate together could change between version and the mismatch between old and newly launched processes caused the problem. So it is versioned now, and if the versions are mismatched, warning is being shown.

> for whatever reason Chrome on Linux installs a google.chrome repository, uses the distro package manager, and clobbers the running binary

As others have said, it is actually the right approach. The custom updaters for Firefox and Chrome under Windows and MacOS are there, because they are lacking any system for centralized package management.

Flatpak solves this in a third way: it doesn't clobber the current tree, it creates a new, separate one and signals the application, that it was updated, and can restart into a new version, when it is convenient. It gets the best of the custom windows/mac updaters (not overwriting running apps), together with the best of linux package managers (centralized management).
>> On the same aircraft the evening before the crash, a captain at Lion Air’s full-service sister carrier, Batik Air, was riding along in the cockpit and solved the similar flight control problems, two of the sources said. His presence on that flight, first reported by Bloomberg, was not disclosed in the preliminary report.

Like that bug that there's only one person in the company who knows about and how to fix it, but she's always working on something else? That's just awful.
Liquid marbles self-assemble from a pile of powder
I just remembered an important detail but I can't edit my parent comment to update: The reason I disabled comments was that I got lots of spam, and it wasn't worth spending time removing the spam comments for the few useful ones I got.
MySQL and SQLite are logically the next databases for Azure Data Studio to target.

Then it will become the swiss army chainsaw for DBdevs and DBA's.

I am happy with electron apps when quality is at the level of VScode.

Buy more RAM ;)
Mass surveillance is kinda Google’s model
"Like much of the shooter’s manifesto, the claim about cryptocurrency is almost certainly nonsense"

Not true -

"Other associates said Tarrant claimed he got money via BitConnect, a purported scam" [1]

His actual words was a pretty light, made a little money -

"I worked for a short time before making some money investing in Bitconnect, then used the money from the investment to travel."

Any article that talks about the "Southern Poverty Law Center" with a straight face should not be trusted at all.

[1] https://www.stuff.co.nz/national/111364487/alleged-killer-wo...
Training in simulators costs money. Just flying doesn’t prepare you for dealing with these rare situations, because most of it is autopilot/by the book.
I completely agree with you. Firstly, it's inevitable that those in developing countries are going to aspire to western lifestyles and that corporations will seek to exploit these markets, thus any argument about the solution being mainly about changing the developed world is flawed. Secondly, we are told that those in the developing world will suffer most from climate change, and thus by not moderating fertility in the developing world we are actually by default causing more suffering. Unless that is, we let them all migrate to the developed world, where they will all adopt western lifestyles, and so we are back to the same problem. It's difficult to take the moral argument against controlling fertility in the developing world seriously (and not think ulterior motives are at play) when said argument falls apart under even a simple analysis. (Supposed) moralists apparently care little about either people or the planet.
The US' main problem with nuclear waste is that they still don't have a place to stash it; waste is building up at the nuclear plants and it's becoming a huge risk.

Whereas China can just dig a storage facility in the desert or something; they can disregard locals' complaints easily thanks to being a totalitarian state. I mean so is the US but it's an ineffective one.
You are still fighting it, aren't you?
>There aren't a lot of jobs for people in middle age who can't physically work a trade anymore due to age or illness or injury -- it's about as bad as being a laid-off factory worker.

I agree with you, it's a tough racket. But I think we're going to be saying the same thing about many fields and occupations in the future. Being a drone in an office is no longer secure or, in fact, healthy.

At least in a trade you're doing more than pushing paper. to each their own.
Basically if we don't control immigration, the developed world will look like the developing world, and then there will be no more developed world to help out. I think for some this is the intended endgame.
Show HN: List of robots to buy or built yourself
I had thought it was the other way around. Lower interest rates induces riskier bets; the so called: search for yield. Which means more investments for companies with uncertain cash flows. This is the reason why the Ubers, Lyfts, Snapchats and others of the world are able to operate at huge losses. People are lining up to throw cash at these firms with the hopes to become, down the line, the next Facebook, Google or Apple.
For macOS for 99/year you're getting nice green pass on Gatekeeper.

For 400$/ year you're getting nothing. I was told here that I could go lower, but this is what I was paying for last decade.
I made a comment below about my negative experience with comments but forgot to mention an important detail: I took down my comments section because of spam.

I had found your solution back when I was researching comment systems, and it looked (and still does look) great! I especially like the clean UI and tree-style comments. However, the big issue for me is how it handles spam. What sort of tools are there to save me from spending time moderating comments?

Even something as simple as "initially hide comments that contain URLs" would go a long way towards removing lots of spam.
> a 2D point is not enough to define complex numbers

alright. Yet, one 2d point is certainly enough to define one complex number, which is what I meant.

The data is the same, but they have different methods.
Co-ops are always and invariably a good idea, wonderful and pleasing to discuss.

Getting such a co-op into a position to actually be preferable to everyone involved might sometimes, in some cases and scenarions, work out to be less pleasing and wonderful.
All local code should be backed up all the time, not just when you commit and push. I’d love that for peace of mind.

Having meeting times from outlook appear on slack would be nice. One place too look.

Maybe a slackbot for new starters. Not as a replacement for human interaction but to aid in their induction.
Good that cannot be manufactured by hand require specialized tools. These can be as simple as a hammer or a fully automated CNC machine. Nowadays the most desired goods can only be manufactured by those specialized tools. Therefore if you want to manufacture a single unit you need those tools. However after building a single tool it doesn't matter how many units you actually produce. Therefore it becomes more expensive to produce less and cheaper to produce more. This is called economies of scale. You cannot build a CPU because building a single one is incredibly expensive per unit. A million? Dirt cheap (only $99 in this case).
Also, it is not actually true that almost no students can follow math class. Math classes too difficult to be followed by literally most get easier over time. The article author exaggerate on those points to the point of lying, so that it is easier to make points.

Also I did not spend all that much time by history or poetry in school. It is possible to select overly too many such courses I guess, but it is in no way necessary or expected.
Yeah mentioning clojure in a thread where he's active is a surefire way to get downvoted.
That guy hates everything not CL...
I can not stick EV token into my cloud VPS build server.
Gradle 5 lets you write the build scripts in Kotlin, which is supposed to address the code completion issue. (And the continuous build mode is a nice feature!)

But, yes, is does use a lot of memory.
Right.

There's a nice characterization of min, max, and saddle points in W. Fleming, Functions of Several Variables. It was a question I got asked once on an oral exam in optimization.

It's an old book; the results are still true! Likely most good research libraries have a copy. Photocopy a few pages and will have that little subject in good shape for a long time.

Fleming was long in the Division of Applied Math at Brown. He also wrote more advanced books, e.g., on optimal control.

He also does a lot on convexity and does the inverse and implicit function theorems and applies them to Lagrange multipliers. If get very far in optimization, especially with constraints, then may like Lagrange multipliers.

See also elsewhere the simpler but shockingly commonly useful Lagrange multiplier approach of Hugh Everett, right, THAT Everett, the quantum mechanics many worlds guy, got his Ph.D. in physics IIRC under J. Wheeler at Princeton.

He did the Lagrange multiplier work for optimum allocation of resources questions in, e.g., military situations near DC. Started Lambda Corporation to do that work where Lambda is commonly the variable used for Lagrange multipliers.

At times I've guessed that there might be a good use of Lagrange multipliers for taxi ridesharing where want to maximize revenue from sharing but also use a path that is a solution to the relevant traveling salesman problem.
This would need everyone to make logical choices based upon the same info.

We’re the only family I know that don’t mind if our children go into a trade. Our friends are horrified by the idea of their children not going to a university. My daughter is going to school to be an esthetician (skin care, beauty trade). In our market the ladies that do this make their own hours and make more than their husbands.

There’s plenty of money in all manner of trades. Many older folks just haven’t caught up with how much the ROI has changed since they went to school.

The other thing to consider, the more manual and dangerous trades are done mostly by men. Female labor participation rates are about to eclipse that of men. If you want more trades the smart thing to do would be to start trying to get more women into them.

From a feminist perspective not having a degree is treated as a death sentence of dependence on a man. A lot of young gals think their only option is a university degree and we’re all familiar with how few women are getting STEM degrees.
A github repo with a docker file and appveyor.yml or similar, then fork it would be most of the job done. You might need to manually create a new appveyor project each time though.
I agree, I can definitely see people thinking "oh, this has the option to forward, it must be safe to share".
Eh? Nobody mentioned mailing lists except you. The guy who brought up GDPR was suggesting that the CC feature in itself might be a GDPR violation. You, on the other hand, are talking about a specific use of CC that people broadly agree is wrong, but presenting that as if it's the same thing as what the first guy said.

This is like somebody calling for a law that bans all cars, someone else calling that retarded, and you coming along and saying Why exactly is it retarded not to drive on the pavements? That's what roads are for!
>Tradespeople work more hours than anybody I know, and the unfortunate reality seems to be that they have to

This is much different from my experience. I see office workers (the startup crowd especially) working crazy hours, practically living at the office, and actually bragging about it.

Meanwhile, most trades jobs are unionized. So you might be working long hours in an emergency, but you're getting paid time-and-a-half at least. Outside of emergencies, you get to punch the clock, and leave work at work.
Obviously companies love to give the EU a wipe for the imposed regulations.

That's easier than doing your homework.
This is a promotion article for an end-to-end encrypted mail service called tutanota.
They claim that google abandonment of the mail encryption project impiles that gmail encryption will necessarily never be available for gmail users.
That shouldn't be a problem if it's properly encrypted. The whole internet is routed over various switches owned by various entities.
This actually made me laugh with how tone-deaf it appears to be about how users normally interact with a search field. Is this response based on industry "knowledge"? How did this sort of thinking come about?
imo it's because google has burned us all one time too many. i don't trust anything they do anymore
Thanks for the swift and comprehensive response.
Where I grew up, basically every youngster did drugs to escape the boredom of the 90s, as being trapped in their smallish german home towns. People did mostly cheap drugs like cannabis, binge drinking, magic mushrooms and crystal.
Many of them eventually abandoned their habits, apparently without much damage.
But I know quite a few who suffered from drug-induced problems like psychosis at some point in their life. Many of them are basically disabled now. Some of them live still with their parents, condemned to take medication for the rest of their life. All of them smoked weed, but only one of them smoked it exclusively. In the other cases where in addition drugs like crystal meth involved.

My guess is, that for some people those drugs act like a tipping point, and bring underlying problems into full blossom.
In my case, it was developing an anxiety disorder. Thus, as you don't know where or what your tipping point is, I'm strongly against taking those drugs. Even a one-time experiment with mushrooms can wreck your life.
HK benefited from people and businesses' flight from the communists (Shanghai was the main business centre) then from being the gateway to China.

These quirks of history are mostly gone now and thus HK's relative importance is bound to decrease.

It'll end up just one city in the Pearl Delta megalopolis.
You clearly haven't read the links from the UN itself that comprehensively debunk these kind of uninformed propaganda.

Over 150 observers from 30 countries [1] observed the elections and declared it free and fair so you are spreading uninformed propaganda.

For those interested in the truth please watch the in depth interview with the UN rapporteur [2] to understand what is happening on the ground. Normal people will take the word of the UN rapporteur and multiple independent observers. For those merely interested in abusing the lives of millions of innocent people, 'democracy' and 'human rights' to further greed filled agendas the truth does not matter.

[1] https://fair.org/home/media-delegitimize-venezuelan-election...

[2] https://www.youtube.com/watch?v=ii5MlQgGXyk
Beware of sleeping queens underfoot this spring
You can't "know better" when the risk is deliberately obfuscated in millions of pages of paper.
> telnet mailserver.com 25
HELO me
MAIL FROM: santa@northpole.com
RCPT TO: friends@dad.com
DATA
You've been a good boy.
Santa
.
Nemerle, general-purpose, multi-paradigm language for .Net
What Is an ISO Audit? Free ISO 9000 Self-Audit Checklist (ISO 9004:2018)
Opensuse uses wicked for servers. It's nice and more suitable.
In case anyone is curious as to how bio-gassification compares to electrolysis (or a hybrid process), I found this 2009 paper [1] that sums it up decently (at least with the technology available at the time):

(Note: SEK := Swedish Krone; currently ~$0.11USD and was roughly the same in 2009)

Abstract: "An integrated system for the production of hydrogen by gasification of biomass and electrolysis of water has been designed and cost estimated. The electrolyser provides part of the hydrogen product as well as the oxygen required for the oxygen blown gasifier. The production cost was estimated to 39 SEK/kg H2 at an annual production rate of 15 000 ton, assuming 10% interest rate and an economic lifetime of 15 years. Employing gasification only to produce the same amount of hydrogen, leads to a cost figure of 37 SEK/kg H2, and for an electrolyser only a production cost of 41 SEK/kg H2. The distribution of capital and operating cost is quite different for the three options and a sensitivity analyses was performed for all of these. However, the lowest cost hydrogen produced with either method is at least twice as expensive as hydrogen from natural gas steam reforming."

In addition to a dollar-to-dollar comparison, however, I think a Carbon-to-Carnon byproduct comparison is also warranted. If you don't have to pay for geo-sequestration (or the messy supply of grass compared to piped in water), is the small cost increase of electrolysis over bio-gas more than compensated for?

As an H2 advocate myself (as an industrial transportation battery alternative), actively looking to boost H2 fuel supply infrastructure, I would be interested to hear from Chimere (OP co-founder) on this point. I ask, because I don't know the answer.

1.) https://www.sciencedirect.com/science/article/pii/S036031990...
Loneliness Is Harmful to Our Nation's Health
> why it would continue to drive the nose of the plane down even when the pilot is reefing on the stick to pull up

well this other crash was caused by a pilot puling up a plane all the way to its ceiling and stalling it, so there's that, so things can go wrong whether if you do and if you don't allow for easy control overrides.

https://en.wikipedia.org/wiki/Air_France_Flight_447#Third_in...

the trick seems to find the right balance to relinquish control only when appropriate, so it seems that proper documentation, checklists, training and maintenance are crucial.

instead looks like to have had deficiencies in all those elements, one way or another (except the checklist itself which wasn't followed).
> decided to never take drugs in my life, not even cannabis

And then:

> (heavy) drinking I participated in

As far as drugs go, alcohol is one of the worse ones. Arguably a lot worse than cannabis.

Source: https://en.wikipedia.org/wiki/Drug_harmfulness
Lambdas are just functions. Delaying functionality is just one use of functions.

> that wording somehow implies that they somehow retain the semantics of the data passed to them

Since they can do arbitrary transformations, retaining semantics is not in focus. Since the input may not have any semantics defined, the semantics is actually provided via the macro implementation.

> S-Expressions are just a serialisation format for the m-expression AST.

S-expressions know nothing about 'syntax'. Thus they can't be an 'abstract syntax tree'. (3 4 +) is a valid s-expression, but carries no information about any syntax (what is the + ? in an s-expression it's just a symbol) and is also an invalid Lisp expression.

An abstract syntax tree would be the result of parsing a program according to some grammar and it would represent the syntactic categories. The parsing stage would already eliminate invalid programs of that programming language.

https://upload.wikimedia.org/wikipedia/commons/thumb/c/c7/Ab...

In Lisp it is important that the s-expression is NOT a syntax tree. Otherwise it would be difficult to write macros which violate Lisp syntax.
Siren of Shame: Gamification for Continuous Integration
The feature itself obviously doesn't (there's many uses of it where sharing the information is intended and legal, e.g. CC-ing multiple people involved with the same thing and knowing each other so it is clear everyone has seen it), but using it wrong can be a violation (e.g. CC-ing all your customers, who have no need to know about each other)
Semantics. Anyone who has ever been to Amsterdam would swear otherwise. My point remains entirely valid.
Do people know about drug induced psychosis there (including weed)?

The lightest strain in a coffee-shop was pretty strong.
The most important invention in the past 2000 years (1998)
Essentially not considered that serious.
https://github.com/umputun/remark
Why not something like Let's Encrypt, but for S/MIME?
You can write wrapper which takes function that can throw anything and returns regular java.util.function.Function. Here's example: https://github.com/rainerhahnekamp/sneakythrow/blob/master/s...