skysight-inc/HackerNews huggingface dataset:
> Could anybody here comment on the differences between spacex's engine, and the engines on the space shuttle?

The Space Shuttle's engines were extremely complex beasts that begat the most advanced alloys at the time – very much bleeding edge, with the tightest tolerances possible, to squeeze out performance that wasn't thought possible before, using highly aggressive propellants (hydrogen embrittlement was a huge problem). As a result, they only had a tenth of their planned life expectancy (average of 5-6 instead of 55 flights), and needed an 80% refurbishment between every flight to replace cracked turbine blades etc. pp.

Falcon 9's Merlin engines, meanwhile, are best described as "boring": They're firmly a 60s design made cheaper than dirt thanks to modern manufacturing technology, and highly reliable thanks to a simple design and safe fuels (kerosene). SpaceX already demonstrated on the ground that Merlins can perform multiple missions without needing refurbishment.

Or, in car analogies: The Space Shuttle is a Jaguar, Falcon 9 is a Ford. While you can, on the paper, drive a Jaguar twice without seeing a workshop, nobody managed it yet.

> I was under the impression that SpaceX was trying to make the first re-usable rocket stage, but I've recently found out that that isn't true. The space shuttle already holds that title.

Kinda, sorta, in theory: While the orbiters did refly a lot of times, the engines (the most expensive part of the Shuttle) barely did, only in the "Ship of Theseus" sense. Same for boosters (fishing steel tubes out of the ocean and hammering out the kinks was a pure work creation measure), and the huge external tanks were made anew each time.

> I'm also kindof curious why they decided to go with a vertical-landing-design, instead of putting some wings on it and having it glide home like the shuttle did. Is that a weight-concern?

Precision and weight: Wings are dead weight for a vertically launched rocket, and increase drag (especially supersonic) further than folded-up landing legs do. Hoverslam point landings need very little added mass on the rocket, and you expose a far smaller surface to re-entry heating etc.
Alexandre Vattamare's cultural exchange system
> Except as executives, their work is a little different than skill workers.

This, which is addressed in the first chapter of "Deep Work" by Cal Newport. The concept of long periods of uninterrupted concentration and singular focus applies to researchers, programmers, artists, and other occupations. But an entrepreneur does not require "deep work" (though can certainly apply it).
Changing the World Technologies
Because egregious misuses of public funds don't get the attention they deserve.

How does a subsidy of £1.66 million for an investment which serves a whole community compare with a single payment for the personal consumption of an individual who belongs to a group whose acts have resulted in economic depression for the last 10 years?
If you pick cotton for 80/hr a week I promise you won't be picking cotton in the long run as long as the guy only doing it 20 hr/week (you will develop physical problems very quickly)
The methods of testing employed by most manufactures of that time period are extremely flawed and considered blatantly unscientific today.
Don't free memory two or more times is "OMG don't flippin' do that", not a "best practice". ;)

"Best practice" is a choice from among justifiable alternatives.
I am going to wait for this to come out on the Everyone Hates Marketers podcast. My phone will not let me download it correctly. I use the Pocket Casts app when its official and this solves the issue.
Ask HN: Who and how worked on games in 80's?
As a developer in a team, I am used to some techniques and workflow, like using git, issue trackers, linters, common ways to discuss the structure of the code, the ways to debug and refactor code.

I wonder, how it was performed in 80's?

Say, there are many titles for NES, e.g. Castlevania or Contra. These include graphics, sound effects, music, level designs. Work on these games include research on what can be technically done and what is not possible.

Who were those people working on games? How many people worked on one game? Was this work temporary for them or were there people who did it for years?

What was a career path for a game developer then? Where are they now?

How could a workday look for those employees? Like, a morning standup, a day of code creation, running and checking it on a TV? If people worked on separate machines, how did they merge all the changes into one working game?

Are there stories or books where I can know more about how it was and if it was much more different than is done these days?

Please share your story if you have anything in common with the industry of those times.
It would be interesting to draft a wide array of ISC-equivalent licenses in different languages+jurisdictions. If you could make sure licensees reference the right license text for their jurisdiction, then you could even remove some of the duplicate language like the warranty distinction between DIRECT and CONSEQUENTIAL, which are apparently interchangeable in some jurisdictions.
Yeah, warming increases atmospheric water vapour slightly so a simplified model that assumes it remains constant is going to slightly underestimate the total warming caused by a given amount of non-water-vapour emissions. Models don't have to take into account every detail to be useful, though.
Yah but you can still put in your own pre-tax money. You are stuck in the BS high expense ratio funds that some slick "benefits consultant" sold to HR/management for those 2-3 years, but as soon as you leave, you can roll over those 401(k) funds into a self-directed Roth IRA.
A reader comment from the NY Times: https://www.nytimes.com/2017/03/29/opinion/online-privacy-ab...
It's one of the most inspiring bits of practical experimental science in our lifetimes I think, but I'm a big fan. That's not to say that it's putting us on the cusp of fusion reactors, but it's definitely going to help the understanding of how plasma at high temps and under strong magnetic fields acts. The best analogy I've heard is "Like trying to squeeze a balloon into a given shape with your bare hands." There is a strong tendency for constriction in one part of the plasma to cause it to flare in another region, which lowers the temperature of the plasma (bad) and can touch the reactor chamber (terrible!).

The ideal would be a total understanding of just how and where to "squeeze" the plasma with magnetic fields, so that the least possible input of energy is required and the plasma would essentially stabilize itself. The problem is that the ability to model that on a computer is only just coming along, and the W7-X is a big step forward in uniting those new models with a practical experiment.

Does it solve issues of breeding Tritium, diverting plasma, resisting atomic sputtering? No, but it does hopefully move forward the understanding of the underlying plasma physics.
Good point. A project with the full financial support of Google with a team including Rob Pike, Ken Thompson, Russ Cox and others, in a language that they designed. And it still took a few years and was a huge and stressful process.
their websites down :(
Not debating that Georgia should make it easier for folks to do what they want with the copy they publish for free but...

What's fair is that LexisNexis be compensated for the value it has added to that Law (e.g., the "annotations"/links). They did the work. It is up to them how to share it. And sharing for free isn't always a viable business.

Note that there is nothing to stop Public.Resource.Org or anyone else from adding their own metadata on top of that Law and publishing it. But if it was done by LexisNexis and licenced by the state of Georgia of course they will come after someone that tries to publish the Law + The Annotations. And they would be right to in a capitalist society (which is where we all live and how we thrive).

If Georgia can still come after someone else for annotating the Law themselves (original work, not a copy of the work LexisNexis did) and sharing it how they want then I would agree there is some kind of problem there. But NOT the problem implied by the article headline (which is a little clickbaity IMHO).
VM breakouts are not really a concern though. They're so rare and worth so much that nobody is going to burn them on you.
Wow only 30 links, that is both impressive and horrifying.

I have very few tweets < 200, but I think you can find 30 outbound links in my first 50 posts since most of my use for it was sharing interesting articles.

Can you imagine combining that with something else as simple as which Oauth apps someone has approved in Twitter? You'd reach near 100% accuracy in no time.
It's great, but they went JS for all their clients.

The desktop client is electron, and there's no way their Android app is native, it feels like a WebView.

Native apps really do make the experience that much better.
Whoa, I had never thought of monitoring VBR as an attack vector for recovering audio.

Do you have a link discussing this?
Because paying people to be there 24/7 is not as cheap as paying people to be in an urgent care from 9-5 or even 9-9.

Precisely because the facility is designed to handle massive emergencies means that your fixed costs are inherently higher.

Just because you intend to use a supercomputer to browse HN doesn't mean the price to buy the supercomputer gets cheaper. If that's your intended use-case, you should buy a cheaper tablet / go to a cheaper level of care.

EMTALA's greatest problem is its unfunded mandate where people are required to provide 24/7 emergency care without regard for ability to pay. Since it's effectively "free", people abuse it and show up at all hours for non-emergent issues because they don't want to wait.
This is just the 80/20 rule essentially
> Writing unsafe Rust instead of unsafe C is not giving you any real advantage for the existing projects, as long as the state is as it is.

Your argument hinges pretty heavily on this. It's incorrect. The reality is that unsafe code in rust is not like unsafe code in C. First, it's bounded to a module. Second, you can grep for it (huge). Third, you still have less UB in unsafe rust than in C.

I've never written code in rust that required unsafe, after many thousands of lines.

> Is safely rewriting a crypto library which is useful in real project still a too big task to be taken?

https://github.com/ctz/rustls

?????????????

> But I'd like to see a real life case of its success too.

Ripgrep is a nice one to point to. There's redox too. Tons of rust code out there.
My coworker ordered some. Wore them for a few days, then just stopped. It's probably easier if you work from home or don't mind looking goofy.

I wear prescription lenses, so I would need to swap out glasses while I'm working, or buy some clip ons.
No real world malware has had a vm escape.
Thanks, I'll check out Kohl's next time. Honestly clothes shopping is not something I put a lot of thought into.
Also nice is the in-service rollover, so you can roll funds directly from the company's 401(k) plan into your self-directed IRA or whatever multiple times per year, instead of when you leave.
I believe you can do several things:

- find a partner who can handle the business development part;

- reach out for new project through your network;

- ask your previous clients if you can help them out;

- ask your previous clients if they are willing to recommend you to their network;
Erm, that's not true. As soon as GMail app updates on Android, it replaces the builtin one with full features. The shared "Play components" are things like push handling, which is builtin on iOS as well.

Play services and OS do not carry GMail shared components.
that we know of
> I don't really care about 401k match.

That doesn't make any sense. Even if you value retirement savings at zero, you can withdraw as soon as the match hits with a 10% penalty. Matching is free money.
Streaming Databases in Real-Time with Kafka, Debezium, and MySQL
It's important to note that Georgia is one state out of fifty; most states don't do this and many have the entire body of their laws available online from the official source, not a third-party provider (And federal law certainly is as well.)

What is fair to say is that the patchwork nature of America's state/federal system divide makes these kinds of gross inconsistencies happen more often than they maybe should, and it'd be fair to criticize Georgia in particular for letting/encouraging this to happen. But it's not a fair critique of the whole country, and you shouldn't add it to your mental reference of "ways the US is effed up" except to the extent that "some states do bad stuff" is already on there.

Also, the authorized publisher, LexisNexis, makes the entire code available online for free here.[1]

[1]http://www.lexisnexis.com/hottopics/gacode/Default.asp
> For example, in the MS-DOS world with near and far pointers, programming in C becomes utterly confusing.

C can still be really "interesting" on Harvard architectures (many popular micros, PIC and AVR for example). Though it isn't that bad, since the compiler sorts constants and the like automatically out and loads them into memory (which means that by default constants that are not optimized out - like strings - will be deduced from the available memory ... 64 to 2048 bytes on typical SKUs).
I think both views are essentially correct. It is a relatively small fraction of the fuel load, but thanks to the impact of the rocket equation, that relatively small fraction translates (as you are pointing out) to a sizable difference in payload to a given orbit.
NY Times: Trump Adiminstration's War on Science
>I always see these services talking about "crystal clear quality", but never latency, which is a shame. Maybe there is simply nothing they can do about it. I've noticed latency get worse and worse on the Internet since I started using it in the 90s and nobody seems to talk about it.

Well, the first problem at home is likely your wireless. Live in an apartment and you can pick up 30 other routers in your wifi search. Chances are you're going to have latency and re-transmit issues to your AP.

Second problem, your router. Most of them suck. If you're lucky and yours doesn't setup QoS/shaping rules. I use fd_codel on mine to attempt to minimize the amount of buffer bloat that occurs. In the race to make your internet 'fast' huge buffers act like buckets for data, which is really bad if you want your data instantly. And if you search buffer bloat you'll see a lot of people talk about it, very few ISPs want to do anything about it though.

Lastly, the one you can't do anything about is the path that your data takes to the remote user. If it is overloaded or has capacity induced latency there isn't much you can do, other than change ISPs maybe.
Those people are not scientists. Lookup Musk on Wikipedia and you'll find that he has a BSc. only, and he started a PhD only to quit after a few weeks to pursue his business endeavors. Jobs dropped out of University. And Gates is probably closest to a scientist, although I'm not aware of any research by him.
Can anyone comment on the credibility of this news outlet or the supposed source here?
Here's the full, freely available state of Georgia code: http://www.legis.ga.gov/en-US/default.aspx.

It seems like some folks may not like that a private company does the hosting or that they have exclusive rights to its reproduction. You could consider some reasons this might be the case that are reasonable, like the cost of maintaining it is actually cheaper by having a company who has the appropriate resources and infrastructure to support it, it's probably a challenge/costly to hire an internal team to maintain it at a high enough quality level, the hosting company made a deal with the government to reduce maintenance and hosting costs by having exclusive hosting/reproduction rights. These are all pretty reasonable things to happen,given that the source text is still freely available to anyone. I think anyone who has an argument against this is probably looking for a reason to get upset at what they perceive to be unfairness by "the other team", and won't be convinced otherwise. Such is life, oh well.
GitHub Phishing Scheme
It's only your opinion that the code is wrong based on the interpretation of the program's identifiers through an English dictionary. It is well-defined ISO C. Even the termination status is well specified, since the float value will truncate to 0, which is EXIT_SUCCESS.

Any program in any language can be regarded as not having passed checks for some imaginable something.

A perfectly good poker game is semantically wrong because the customer asked for an accounting application. The compiler should have checked the code against a formalized version of the requirement spec, damn it!
I'm not disagreeing with you on the details, but don't both of those things mean it is stateful?
The selling point of Vue for me is the constant $35/month price. I can get a better deal from the cable company, but I'd have to renegotiate every year. The reduction of cognitive load here is freeing.

I don't think of it as "I'm paying for x channels I don't watch," I think of it as "I'm paying $35 for these channels that I do watch, and I'm happy to pay that."
I'd argue that our approach should be similar to how we (should) approach people in general: innocent until proven guilty. In my opinion it's preferable to have the occasional mentally ill person do something terrible if it keeps us from having a mentally ill person deprived of their freedom and autonomy without it being necessary.
> How much lithium waste will be produced each year by this process?

It doesn't matter. It can all be recycled.

> Do you really believe that in 75 years time the United States won't have the ability to safely store or simply hurl 400 million coke cans at the sun?

I don't believe we're competent enough to manage nuclear waste in any form.
Seems like you can't Google, don't quite understand how American civil procedure works, or are willfully ignorant to both so as to be able maintain your predispositions. I'll call this "trolling". Or, at a minimum, posting in bad faith.

A police report doesn't quite matter anymore in the case mentioned above, nor should it be the final arbiter of what you believe to be true, when a grand jury of one's peers has already determined there to exist probable cause enough for the person to stand trial for capital crimes (crimes that contain "act of terror" and "hate crime" as "modifiers").

"The grand jury voted to charge Mr. Jackson with murder as an act of terror in the first- and second-degree, Joan Illuzzi-Orbon, an assistant district attorney, said during a brief appearance in Criminal Court in Manhattan. Judge Tamiko A. Amaker ordered Mr. Jackson, who was also charged with second-degree murder as a hate crime and misdemeanor weapons possession, to return to jail until his arraignment on April 13 in State Supreme Court."

https://www.nytimes.com/2017/03/27/nyregion/timothy-caughman...

I am not sure what you could possibly be denying at this point. Do you think that the NY Times is lying? That this Grand Jury never actually convened? That he didn't actually stab the victim? That this wasn't actually (at least potentially) a hate crime? That we are in a post-racial America?
For some data I suggest the following books, if the subject interests you:

"Peak: Secrets From The New Science of Expertise"

"Deep Work"

"A Mind for Numbers"

All are pretty engaging reads!
It was literally founded on those things, in the sense that the original inhabitants were about 50% indentured and they built the damned place. Saying that the US wasn't founded on these realities is like saying the AU wasn't founded as a prison colony.
Youtube is experimenting with an app that allows users to watch videos together and interact in real time. So you can invite a friend to watch and it will start playing for both of you at the same time. https://arstechnica.com/business/2017/03/google-experiments-...
You are incorrect. The reform of stock option grants has come up in committee multiple times, and even made it out of committee last year, but didn't get to be discussed before the year ended, and since there's a new government the order of things being looked at gets reset

https://www.congress.gov/bill/114th-congress/house-bill/5719...
Believe me, I would love a simpler system, if not only for my own life but because the rent-seeking of Intuit et al is infuriating. Though I think almost any tax increase would dwarf the marginal reduction of filing process price (and probably time for many too).

What I wanted to specifically notr is that this is also an effect I think it valid for Norquist to point out, not only that treating unintentional tax evasion reduction as a tax hike, which I think is a silly argument.
You're the first person I've seen describe this, but I feel exactly the same way about listening to the radio. I can listen to my own music collection, but there isn't the vague sense of community and 'life'. So even though I don't hear as many favorite songs, I still prefer radio. Internet radio is half way in between.
Sketch 43 Web Viewer – View and Inspect Sketch Files in Browser (Open-Source)
I'm pretty sure any methane fuel they use will be manufactured for the purpose rather than extracted from the atmosphere. That means there's bound to be some leakage.
Don't pensions tends to have issues with behind underfunded?

I'd rather not have risks just swept under the rug.
Recently I've been writing on the topic: http://blog.envoice.in/ultimate-guide-land-freelance-gig-end...

- Polish your freelancing portfolio

- Learn more about the client you are going to pitch to

- Prepare for the meeting

- Learn how to create an estimate

- Close the deal
It's interesting how the villains of drug pricing have gone from the drug companies to the PBMs.

At any rate, I don't agree that PBMs cause drug costs to increase. PBMs are simply purchasing groups for insurance companies. They take advantage of bulk purchasing and offer that service to insurers. They also handle the all the complexities in setting a formulary which includes evaluating new drugs, negotiating with drug companies and adjudicating claims. That has real value.

The best example of how PBMs have controlled drug pricing is in HCV. Express Script directly attacked the pricing of Harvoni and Sovaldi. However there was nothing they could do since they were the only HCV drugs available. However, when Viekira Pak became available, Express Script did an exclusive deal with Abbvie which caused Gilead to scramble to price match. The cost of HCV drugs came down by almost 40% overnight. It saved the health care system a lot of money.

Now, I do agree that PBMs pull a fast one on some insurance companies. They are intentionally opaque when it comes to how much you pay for their services. The smart insurance companies ask for "pass through" pricing and then pay the PBM a fee for their services. The not-so-smart insurance companies don't ask for those numbers and get put over a barrel.
Mobile Medical takes another step forward with Imedic Health
You're honestly at the edge. You might have nailed your interviews because 300k RSU and 180 base is extremely high for 7 years of exp. You can't compare a startup package with a public company package. I'm surprised they didn't even tell you the difference between options and RSU's. One is competely imaginary, the other one is real money. Treat your RSU like a signing bonus because it's (variable) cash. My guess is that the other offers you might get will be lower than this one ;)
There is a plus side to this in some sense. I was at a recent Go meetup in NYC.

One of the presenters has been working with a group across the nation to backup all the scientific data. They are up to 100 terabytes now.
That's a tricky/misleading comparison to make since most of that oil energy is lost as waste heat, possibly 2/3rds of it. You really only want to compare the actual energy that makes it through to achieving some stated goal like moving a car or heating a home.