skysight-inc/HackerNews huggingface dataset:
Unfortunately, that is not statistically true. I can't find the study, but it has been proven that legalizing prostitution does not reduce human trafficking. While it's still the right thing to do -and its benefits are numerous- reductions in trafficking are not one of legalization's benefits.
Mind talking more about what the challenges in running a 50TB relational database?

I and I'm sure many others would be very interested in a blog post or long-ish comment with anecdotes and lessons learnt...
The critical bit for many interesting practical applications is this:

A significant problem, however, arises from the high
viscosity of the liquid and the corresponding reduction
in its ability to remove CO2.[3][20] All uses of liquid
breathing for diving must involve total liquid
ventilation (see above). Total liquid ventilation,
however, has difficulty moving enough liquid to carry
away CO2, because no matter how great the total pressure
is, the amount of partial CO2 gas pressure available to
dissolve CO2 into the breathing liquid can never be much
more than the pressure at which CO2 exists in the blood
(about 40 mm of mercury (Torr)).[20]

This has been a known issue since the 50's and shows no sign of going away. The paragraph is a bit muddled--it's the diffusion coefficient, not the viscosity, that is relevant--but the inability of oxygenated liquids to carry away CO2 has so far been the major impediment to doing any of the really cool things this technology has promised for so long.
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The critical bit for many interesting practical applications is this:

A significant problem, however, arises from the high viscosity of the liquid and the corresponding reduction in its ability to remove CO2.[3][20] All uses of liquid breathing for diving must involve total liquid ventilation (see above). Total liquid ventilation, however, has difficulty moving enough liquid to carry away CO2, because no matter how great the total pressure is, the amount of partial CO2 gas pressure available to dissolve CO2 into the breathing liquid can never be much more than the pressure at which CO2 exists in the blood (about 40 mm of mercury (Torr)).[20]

At these pressures, most fluorocarbon liquids require about 70 mL/kg minute-ventilation volumes of liquid (about 5 L/min for a 70 kg adult) to remove enough CO2 for normal resting metabolism.[21] This is a great deal of fluid to move, particularly as liquids are generally more viscous than gases, (for example water is about 850 times the viscosity of air[22]). Any increase in the diver's metabolic activity also increases CO2 production and the breathing rate, which is already at the limits of realistic flow rates in liquid breathing.[3][23][24] It seems unlikely that a person would move 10 liters/min of fluorocarbon liquid without assistance from a mechanical ventilator, so "free breathing" may be unlikely.
I assume the technical fundaments are older than document databases were popular in enterprise and reliable on scale
A footnote would be nice. Say "no limit" and then in small print " actually 5000. this is for teams not communities."
I worked with the author, Mimi, at UC Berkeley and she took enormous risks in the Middle East and Moldovia for the sake of getting her story. Several others did as well including my two collegues who spent two years locked up in Iran after being lured across the border while reporting in Iraq.

Funding for investigative journalism has all but completely dried up, due to disruption for Silicon Valley and other factors. Journalists like this are taking risks on their own now with no backing if something goes wrong.
I know that pain. Took me and my wife almost 5 years, near $2,000 and three interviews to get her green card. And that was with her already being in the states when we met and got married.

Keep at it. The feeling when it's finally over is great.
I've seen variations on this every few years. It must be one of the more common backyard-inventor things.
I recommend 'Be Prepared'. It's a funny book with great illustrations. It is also a very useful book with great advice.

I know you want scientific books, but I can't think of any. There are experts on childhood learning, like Piaget, you can use Google and Stack Exchange to find almost anything, and you also do have access to scientific, peer-reviewed articles (use Google, once again, or go to a university library) if you have the inclination and skill to get what you need from them.

That said...Do you need to do this? I say you probably don't when it comes to parenting.

Knowledge and wisdom are two different things. You'll get farthest by being a good partner to your wife and by taking some time every day to reflect on where you're going and let what you've learned from experience sink in.

Parenting is more like something you practice and live. It's hard to capture it's essence in book form.

Also, people are a tremendous resource. People you know personally and can speak to personally might be able to provide something books don't have. Think about the people you know and most respect. If any of them are experienced parents then go to them. That set of people hopefully includes your mom.

And your dad.

Happy father's day and congratulations!
A large number of engineers are not interested in learning JavaScript since they may be very fluent in their language of choice. I think it would be better for everyone if they can bring in their expertise also to the web platform.

Also I don't think they are being unambitious by not wanting to learn JavaScript since all languages have many warts and learning all of the peculiarities of how to do the same thing in different languages is not going to make you a better programmer.
This is asinine. There is already a free, federated gift economy for rides and places to stay -- hitchhiking and hospitality exchange, both of which existed, and made it to the internet[1][2][3], well before Airbnb or Uber.

[1]http://hitchwiki.org
[2]http://couchsurfing.org
[3]http://trustroots.org
A very interesting paper and approach (but a bit hard to read at the pace of HN in order to post a timely comment :-).

I like the idea to focus first on the ideal case with no node failure nor network glitch, and to use then system transformers to introduce, in a formally verified way,
both the mechanisms and the failures to cope with.

I have now to find time to give it a try !

By the way, a bit of DuckDuckGo gives:

- http://verdi.uwplse.org/

- https://github.com/uwplse/verdi/
Oh wow. Nice work.

I aways has ambitions of building something like this but never the motivation.

I built a full adder and that was as far as I could stomach the job.
See also: articles about how programmers in San Francisco invented the practice of a bunch of twenty-somethings sharing a rented house.
Oh, it was a suggestion to the guy, but thanks for elaborating.
Didn't independent countries on the gold standard have a similar problem? Neither of #1, #2 nor #3 were available to them.
Yeah, see here: https://news.ycombinator.com/item?id=9755166
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Technically, sure (assuming you also build the robot hardware) but we're quite far from having software that can negotiate treaties, figure out how to regulate water rights in California, etc...
Video: https://www.youtube.com/watch?v=e87HIlOIYFA
I'd like to recommend Avogadro which is FOSS. One can drag and drop atoms to create any molecule. With annealing the atoms the will arrange themselves in a physically realistic position.

https://avogadro.cc
https://avogadro.cc/wiki/Screenshots

Here's a screencast of building a caffeine molecule with Avogadro:
https://www.youtube.com/watch?v=HrbahnykY6g
The current two are already "fast" and "safe".
Say you're the tech lead for the project, built before 2001 [1], and you need to hire a vendor that can provide a cluster that won't break with 100TB+ and guarantee long term support, possibly for decades.

Who would you call?

[1] http://www.law.umaryland.edu/marshall/crsreports/crsdocument...
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This belongs in a science museum. So so so cool.
The bigger you make it the slower it'll end up working, basically. The time for the signal to propagate through all those discrete transistors will be quite big and that puts an upper bound to your clock frequency.
In Berlin, the son of Konrad Zuse is recreating the Z3 using modern relays. https://en.wikipedia.org/?title=Z3_(computer)

You can visit it in the museum. Forgot the name, has a plane on the roof.

He gave a talk when I was there, and afterwards, we where allowed to add some numbers on the computer. You can see the memory banks and hear the relais clicking and blinking.

An interesting fact is that it is a 32 bit floating point machine. Though when I was there he had some issues with synchronising the clocks, so it only did integers then.
When you take a roommate, aren't you sharing the cost of rent? Sharing can mean mutual contribution as much as it means mutual partaking. Also, what? Amazon is not a retailer? They have giant warehouses, they ship physical product with Amazon logos on the boxes, and they accept returns. They allow for 3rd party vendors, but they are still very much their own retailer. eBay perhaps, but not Amazon.
I, for one, would much rather use Python to make the browser do it's scripting thing.

But, alas, I'm stuck with Javascript. For the longest time, we had to specify which language we were using as part of the script tag. Which was fine, as long as we specified Javascript.

Who invented that damn thing? Henry Ford?
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Looks like a Japanese design firm tried something similar back in 2013 called the unbrella, still shipping for about $90 (http://h-concept.jp/fs/hshop/c/unbrella).

English press story at http://www.damngeeky.com/2013/12/11/16246/unbrella-solves-th...

Minor marketing fail that while the Kazbrella solves the 'brush against other people's pants' problem, it doesn't solve the 'drip water on the floor problem', yet the promotional video implies it will.
> He's probably still read more SF than anybody alive, impressive.

25% of 18,000 books is 4500 books. Over a 25 year period, that works out to one book every two days. That is indeed quite impressive, and though I'm sure somebody out there has read even more, building a collection like that takes some serious dedication.
I'm going to say 25%, so the company replaces 10k SDE's every four years at a cost of $4.5 billion dollars (based on 4x salary replacement cost and 10k SDEs). Why 4x? There's an army of HR and recruiting people. There's tens of thousands of interviews. And people don't really start paying off until their third or fourth year in a new job.
How did you draw an s cuve the other way? I thought there is only one way, a little extreme: horizontal line, diagonal increase, horizontal line.
"Time and again I've seen developers leave because they've had a frustrating day (always with management, never with technology) and that was the day the recruiter emailed, like he does most days, with an opportunity no better or worse than average. This time she decided to reply instead of sending it straight to the trash."

So true.
My 2-year-old son has had more than his share of hospital visits and doctor appointments. I'm incredibly thankful to everyone involved in the medical profession -- doctors, nurses, techs, researchers, pharmaceuticals, everyone who has helped my son be healthy and happy. But one thing I've learned is that they're not always right.

Don't allow doctors and nurses to make decisions about your child's healthcare without running them through your sanity filter. Something as routine as a blood draw can be very traumatic for both child and parent -- you'll be in the position of physically restraining your child while he or she screams in horror. Usually the doctors and nurses know what they're doing. But sometimes they're faced with complex choices and they face these choices without knowing anything about your child's personality. They'll often err on the side of caution, and usually they're right, but it's your job to ask the questions to make sure of this. You are your child's only real advocate -- everyone else is just doing his/her job, sometimes well and sometimes not so well, though virtually always well-intentioned.

I've been in the situation of arguing (politely) with a physician in an ER because he didn't have a good reason for ordering some tests for my boy. I'm sure he's great at his job, and on adults these tests are basically (emotionally) free, but I don't take inducing terror in my son lightly so they're not free by my reckoning. I ended up getting him to call my son's primary care physician, who agreed with me and recommended the tests not be done. I'm pretty sure we would have walked out without the tests anyway, because he couldn't give a sound reason for the tests. You don't have to go to medical school to apply basic logic and rationality.

Get all the CDC-recommended vaccinations. Sometimes you have to pay the price.
Ok, I didn't realize that. Thanks.
Again, the point that always needs to be made in these discussions: America's trains are lousy even in dense areas where they're heavily used. Case in point, the LIRR.
> Train rides can be spent doing whatever the hell I want

This is the best part of it for me. I spend > 7 hours a week on trains and read so, so many books. People always wonder why I can read so much, and it's because I can ride a train instead of driving.
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I'd argue that if we didn't try to pretend people were robots at work and tried to ensure everyone was happy, things would be done even better than they are now.

It's certainly the case that people show up to work even when they would rather be doing something else. If anything I suspect that's what the majority of people working are doing, working because they have to, not because they particularly want to.

On the other hand, do you really want someone who's very unhappy driving the bus or flying the plane you're on?

I don't think that work is somehow special, we should care for each other no matter whether we are at work or at a coffee shop.

Of course, everyone is different and I'm glad to have heard your opinion. I just think it's a bit sad because for those who work full time, work is where the majority of their waking life goes. That being the case, I can see a situation where people might only ever interact with other people at work, and so if they need help they have nowhere else to go. But anyway, I can of course also see your point. It's just that it seems with something like depression or suicide, people don't necessarily know what they should do or act rationally even if they do know what they should do.
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Apple must have calculated that her influence potential is greater than the value of if the free streaming wasn't paying the artists.

I mean, she has almost 60M followers on twitter - ~20% of the US' total population.

Now Apple can recalculate and pay them barely just enough to have their original projections corrected. The free press is great - and they'll probably even gain from it!
But I grant that point, and so does the article. The problem is that most of the geography is not dense.

Here's a classic and recent example from someone who commutes on Amtrak out of NYC, the most dense metro region in the USA: https://twitter.com/greg_thornbury/status/610132981571801089
It is complicated but a core reason is that a train system is not a one time thing you build and thats it.

It requires a huge commitment of continued maintenance and very long term planning.

There is no ribbon cutting or photo op after a maintenance project.

In Switzerland alone the yearly operation of the rial system costs almost a Billion a year plus another 600 Million in maintenance. [1]

[1] https://www.sbb.ch/content/sbb/en/desktop/sbb-konzern/ueber-...
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One of my college profs worked with Zuse. In class I said, "Wait, so you worked for the..." and then stopped realizing what I was about to say. He was Hungarian-American, and at the time very old. What I was going to say wasn't fair.

On the other hand, the class he was teaching was my assembly language class. And he knew the material inside and out.
Is everyone's art equally valuable?
> Also not helping trains is the fact that more than any other country on Earth, Americans love cars. Not a little. A lot.

Germany -> Car loving country with a highly efficient railway system, and a well serviced road system as well. So it should be achievable.
The situation in the Netherlands is also a lot more complicated.

Drugs are not largely legal at all, they're largely illegal. In fact, they're entirely illegal, there's just a gray area when it comes to a few soft drugs (pretty much just weed now - and I believe truffles in some head shops possibly... but no longer mushrooms.) Bringing weed into the country: still technically illegal. Other drugs: very much illegal. Regarding drug law, I would suggest looking to Portugal as a closer representation to that perfect utopia.

Regarding prostitution, I don't know enough to have much of a personal opinion on whether legalisation would help.

I used to think very strongly that it would. Last year I visited (as a tourist, not as a customer) Europe's largest brothel [0], in Germany, and came away with the opinion that if people are going to pay for sex, in a legal system like this is the best way for it. And I still see the benefits, but I've also since read up a little and found out many of the girls in that brothel were still trafficked over, still have pimps, etc.

But... don't be too quick to jump to one conclusion or the other. Maybe the NL situation would be better if the entire world also legalised it? Maybe there are different ways of doing it to the way NL has done it. Etc.

[0] https://en.wikipedia.org/wiki/Pascha_%28brothel%29
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This is even more relevant today now that we have "VDUs" everywhere.
Don't look at the "moving gif's" (sic.). Then it will be easier to read.
I didn't say cars are the only reason. They're just one reason among many.
Does it help anyone to put out statements one has read somewhere on the internet without being involved with the topic at all?
>Because European executives get significantly more vacation time than their U.S. counterparts, we theorized that studying the two groups would essentially give us a control group and a test group. (Of course, this is not perfect as there are other cultural differences between countries, but for our purposes it seemed like a reasonable proxy.)

I find it hard to take any of their conclusions seriously given this beginning.
If you want to do a domain availability check without using one of the webforms you can usually determine whether a domain name has been reserved or not with a simple DNS query:

$ dig in any example.com
Fintechs chasing the Unadvised assets that are up for grabs
Things are easy ... until you realize that F1 is a pretty difficult balancing act.

It has to be exciting, but people demand safety. Cars have to be advanced, but differences between them small enough for there to be actual competition. We have lots of technology, but what we like to see is driver skill and not how fast a computer can hurl 600+ kilograms of mass around a track.

As these considerations play out you end up with Formula One. Which is compromise upon compromise. While maintaining some sort of illusion of F1 being the ultimate expression of technology and skill for the uneducated and the ignorant masses.

Don't get me wrong. The drivers and the teams are pretty much the ultimate performers in their respective disciplines. All of the drivers are top athletes that can take a lot more punishment while maintaining higher levels of concentration over longer periods of time than the vast majority of olympians. But they are still part of something that needs to work as a show.

And it just won't pull in any money if you have one or two teams dominating the field completely for year after year.

As any big sport, F1 is closer to pro wrestling than it is to the pure sport we would like to tell ourselves that it is.
Well, to start off how about buying off-shelf, standardized components. Allowing international competition also would help. At least it is the case for Caltrain and BART.

Caltrain reinvents the wheel with their control system:
http://caltrain-hsr.blogspot.com/2013/01/cboss-falls-behind....
That would decrease the cost and time to implement few times.
like this little country that got most of the things just right called Switzerland
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Don't sacrifice anything for your children? I spend crazy amounts of money on diapers and food and clubs and such for my kids. I take them for walks or to the playground, sometimes when I'd rather be doing something on my own. I go to bed earlier than I would so I can wake up with my boy and eat breakfast together.

Having children is sacrifice. It's constant sacrifice, and it's as hard as it is great. Anyone who says it's not is either lying or his a horrible parent. And I'm not getting the sense that it's much of a burden on my kids' shoulders.

I also don't get drunk anymore. In my opinion it would be horribly irresponsible for me to do so. If you have kids and you insist on getting drunk, please arrange ahead of time to sleep somewhere else. When I'm around my kids I try my best to be aware and capable of making good decisions.
Single parents should be punished by the law.
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Might be quick when running but the jvm startup time is a pain.
By the time the java solution starts up, my c based solution has already finished.
https://www.senz.com/en

I own a couple of them, they work amazingly well. You can even use them on a bike with heavy wind.