skysight-inc/HackerNews huggingface dataset:
"Some versions of the Rolls-Royce Merlin engine used in the British Supermarine Spitfire used the Coffman system as a starter."

But not all of them.

I wonder how tight the tolerances were on these engines?

When the U.S.A. entered WW2 it was Ford that tackled the problem of making aero engines en-masse. Ford took Rolls Royce designs that had been used for the war thus far (the U.S.A. being a late entrant) and realised that the blueprints provided were not fit for their purposes.

Until then Rolls Royce had been making each and every engine in a fairly bespoke way with the parts not exactly interchangeable between engines. Tolerances varied so fettling was always required. Ford fixed this and delivered precision engineering for a much better product.

Were the Rolls Royce versions of the engine the ones that needed the Coffman system with the superior Ford versions not requiring it?

That is my guess.

This was not the end of really-difficult-to-start engines though. Motorsport took it to a whole new level in the post war years.

Aero style supercharging didn't last for very long in the pinnacle of motorsport - Formula 1 - due to the thirstiness of the engines. Naturally aspirated engines (with the Ford Cosworth DFV) ruled the roost for many decades and then Renault came along with the turbo. This changed everything. However, to get the turbo to work precision engineering had to solve the problem of extremely high pressure gasses wanting to escape past the piston rings.

To fix this the pistons were made 'larger' than the cylinders. So at room temperature, with a cold start, there was no way for mere mortals to hand crank the engine. A very big starter motor in the garage was needed and only at operational temperatures with a little bit of thermal expansion could the engine run freely.

The flywheel was very light on these engines so only true drivers could keep these things from stalling, and if stalled whilst on the track, that was that, finito.

BMW made the most legendary turbo era engines, 1400 horsepowers in qualifying trim, with the engine having to be rebuilt after a handful of laps. The blocks for these engines came from their 4 cylinder road cars. According to legend the key ingredient for the strength of these engine blocks was urine and cold outdoor weather.
All religions started out as a cult. Christianity was a cult until it won.

The difference between a cult and religion is the same as the difference between a molehill and a hill. It's hard to say exactly when a molehill turns into a hill, but you'll know it when it does.
The regular checkup part at least is solvable.

The only way to help victims of trafficking is to offer them help and some sort of amnesty.
B-52 jet engines can do cart starts as well.

https://www.af.mil/News/Article-Display/Article/121480/cart-...
I'm from Germany. Maybe that is why I don't get it.

Does "banning right turns at night" mean that it is banned to take a right turn at night? As in not being allowed to enter a crossing street in the right direction?

ELI5, please. Thank you.
This is the view every should have - then there would be less of the sort of treatment that leaves people feeling like shit. This is why I love consulting. I get to interview who I’m going to work with and I’m the one who gets to decide if we are going to proceed. I’ve done the interview “firing” a few times and boy are they surprised to hear it.
Ask HN: I need career advice
I have been working as a web developer for over 7 years now.
About 3 days ago I quit my job. I have 30 days before I can work on my own. I am really happy about that part.

I am around 26yo and live in India (in a small city). I can survive without money for sometimes like 1 year. but my father's health is on the decline. I have a big brother but at some point, I have to do my part.

I am really interested in ML, data science, Clojure, software architecture programming languages and want to understand how complex systems like databases work and hopefully work on one.

My experience is mostly on web node/react/nextjs (8 months) and laravel/php/wordpress/codeigniter (All my life). I have also used vue/angular/jquery time to time.

in my free time, I taught my self-different programming languages but never got the chance to use any in production.

> go, oCaml, rust, Haskell, ruby, and python.

What I want to do is learn new things, kinda like research job and get paid for that ? also I don't have any degree in general.

if that does not work out maybe learn new technology and doing things the right way without worrying about deadlines. and small apps and hopefully earn from them?

if nothing all I will work as a freelancer.

So my questions are.

Q. Where should I invest my time?

Q. what should I be learning/working next to have a good position in the near future.
I don't think the planning in the USSR and Walmart are remotely comparable, and not just in terms of timeliness. A central planner is deciding who needs what, how much, when, and where. But Walmart is discovering who needs what, how much, when, and where. They aren't decided well in advance what people need; they are working to understand what people want and how to get it to them. How much you can sell and at what prices drive their forward-looking decisions around what people value. Without those signals, a central planner can't really know who values what. It's just guesswork.
Yes. And many of these people work at some of the biggest companies like Google, Facebook, Apple, and other tech companies. And, it's not just the support labor for janitorial, kitchen staff, etc. Many of these RVs are used by entry level and new in career salary employees. Unless you have a dual income family making very solid pay or have a director-level plus salary in a home, it is often not possible to own or at times even rent a home.
I thought they were using captcha to perform that function.
Apparently Quanta is fully supported by the Simons Foundation:

https://www.quantamagazine.org/about/
I don’t trust the workers, either. Who will manage access to the site? Rotate locks if someone is fired?

I can’t rationalize how this is better than the traditional data center model after all the controls that need to be implemented.
Not gonna lie, to me that’s a lot of words to just say “people who use popular languages are beneath me because they simply can’t understand the ‘beauty’ that mathematical-esque and functional functional languages offer”.
>> First, reading, writing, and arithmetic are no longer college level skills. That combined with computers means that the bar for government clerical work is much, much lower.

Which probably explains why most public services are FUBAR and stuffed full of incompetent idiots.
If that is regular, yeah. I took it as that happens for a few days in a row irregularly. If once or twice a year, one finds oneself (and, presumably their team) in an unusual crunch or fighting fires for a couple of days, that does not strike me as unreasonable.
(The last time I worked on a Prolog program was 20 years ago. It had only around 4000 lines, so take the following with a grain of salt.)

For me, a work day in Prolog looked like this: Write your idea down in 1 hour and then spend the remaining 7 hours figuring out where to place the cuts :)
An in-depth look at 100% Zero Downtime deployments with Terraform
Most relevant Prolog implementations use a Warren machine like implementation with JIT.
It's just an interesting story. You don't have to worked up about it.
I disagree. The small groups, especially the ones with self-amplifying „high echos“ in their groups are the ones (groups or individual members of that group) that easily radicalize. That‘s how terrorist cells, guerillas, and „lone wolf“ aggressors arise (left and right, political and social, agnostic and religious, whatever-you-can-think of extremists). Just check the news of the last months, I mean weeks…er, days!

And I‘m not saying your point about large echo chambers is wrong, it’s quite true (again, see recent news). But the problem is with any kind/size of echo chamber. And „echo chamber“ is a different thing than domain-specific groups like HN – it‘s only an echo chamber when HN is your only source of (tech/entrepreneurial) news/discussions. Note that even where you live can easily become an echo chamber if you rarely break out of it.
Z80 is quite OK with its real stack and the 16 bit registers. Almost exactly the same as the "small" (64 k data, 64 k instruction, IIRC) memory model in Borland C for DOS, which I used quite a lot back in the day. Only occasionally did my programs get large enough that I had to increase the memory model.
Obviously you are to build it from known-valid texts that are already proof-read.
The same thing affecting academia ( mostly humanities ) is the same thing affecting journalism. Instead of being institutions for seeking truth and knowledge, they've become institutions of political advocacy and agenda.
That's a joke right? Those subtitles are fake.
Do so many people write code in JavaScript today instead of countless other high level languages because JavaScript is technically superior and better designed than any other language, or because browsers and the web provide an ubiquitous runtime platform?
GoCity – Code City metaphor for visualizing Go source code
We're almost there. With a little more work people might be able to enjoy cloud servers in their own homes and businesses. What would we call these ultra fast local machines able to 'serve' up content? 'Server' feels a bit on the nose. Perhaps 'Home Cloud: Secured by Blockchain'.

</snark>
I'm using $15/hr and $7.25/hr in "value" for convenience here (though I didn't make that clear). Really, I mean $15/hr plus benefits + overhead + margin.

But, to my argument, I think that jobs will have to change. I'm regularly appalled by the quality of the service at fast food places: trash overflowing, dirty tables, dirty bathrooms, slow order taking, incorrect order taking, etc. Okay, you can't get the best employees for minimum wage, and some spreadsheet probably figured that the loss in customers due to poor service is more than made up for by the low cost of workers. Once that cost is cranked up, that cost/benefit ratio changes, and better service will be expected. Yay! That's a good thing. For employees that can deliver it. But for those that can't, especially those that struggle with English (many, where I live), they're going to be cost/benefited out of a job.
I also remember people hacking IIS, SQL Server, WebDAV or exploiting one of the hundreds of RPC/DCOM/LSASS vulnerabilities in Windows, the servers were then used to start private FTP servers used to sharing warez. At least that was something the FXP community did, the FTP servers were then filled very quickly from other FTP servers (hence the name FXP, File eXchange Protocol). Thinking back to it, it was quite astonishing how horrific Windows security was, to think that people (to this day even) are seriously considering Windows a viable server operating system still makes me laugh.
Looks nice, i really want a "wordpad but saves HTML files" program - i actually use an ancient version of Frontpage Express for that (which works just fine in Windows 10) which i used to make [0], [1], [2] and [3] (notice a pattern? :-P) but i'd like something a tiny bit more customizable and with slightly modern tech such as PNG image support :-P.

Sadly, this doesn't seem to be it... the UI is very clunky with weird glitches (e.g. right click on the titlebar doesn't show a menu and instead has some line appear), half of it uses subpixel antialiasing and half of it doesnt and doesn't follow any Windows desktop application conventions (no menu bar - yes i know some other programs do the same, i don't like them either) nor has any sort of way to customize the UI (like hiding the sidebar at the right or the gap with the ugly rectangles at the left that i'm not sure about - guess where a menu bar with a View menu would help :-P). Also some editing operations feel a bit off. I think it would improve massively with a native UI based on wxWidgets (or Qt, but Qt is more of an imitation of native widgets than the real deal) and using the HTML engine only in the editing area.

But FWIW what i like is

A) The idea - big props on that because i really want something like this but couldn't find anything that wasn't an absolute disgrace compared to Frontpage Express (e.g. i made this [4] vs [5] a couple of years ago - i exaggerate a little, but only a little :-P). I tried to make something similar, but made it overcomplicated and lost interest. Perhaps i'll try again at some point - after all i don't need all modern Web 3.1 features, just a tiny bit more than what Frontpage Express provides.

B) Pasting an image from clipboard actually works. I'm 60% over liking that it makes the image part of the HTML file as embedded data and 40% over not liking it because it bloats the HTML file unnecessarily... but i think that it is more convenient this way (and you can drop the html file to something like mixtape.moe which allows sharing raw html files).

[0] http://runtimeterror.com/tools/gopher/

[1] http://runtimeterror.com/tools/liteproc/

[2] http://runtimeterror.com/tech/jtf/

[3] http://runtimeterror.com/tech/webserver/

[4] https://i.imgur.com/ZPvaiP6.png

[5] https://i.imgur.com/12iiEWb.png
I always find it ridiculous but in my experience passing on beers is never a good idea.
Also commonly known as “a pillar”.
So.. can i still write to LPT on my win10 machine and have my printer print something?
There‘s certainly a risk here but that is why we have laws. E.g. in Germany, showing fascist symbols is forbidden (unless it‘s an educational/historical context). It‘s up to the people and courts to ensure the law is not overstepping the boundaries of free expression, and it‘s up to the executive and judicial branch to ensure people don’t tend to prejudgement.
I guessed it was a joke, and I found it funny :)
Why is it that whenever a lay person wants to talk about physics they talk about

Because those things sound exotic and interesting. Just like (statistically) nobody goes to the natural history museum to look at chicken-sized dinosaurs.
That presumes that your testing process will find the input that actually triggers the UB in your program before the release.

The CVE history of the major browser vendors indicate that this is currently an unsolved problem for their large C++ applications.
Cloudron has a free plan (two apps tho)
> Django's Form class hierarchy

I personally liked it. It is a little overwhelming at first, but after you get used to it, it's actually quite powerful.
Having completed a graduate level Physics education, I can attest that the selection of topics is solid.

(Can't comment on the books, I learned in a different language where other books tend to be used).
I’m getting horrified at the way cocaine is becoming standard in so many places, and the way you hear about it more and more in the media, as something casual. It seems just like if the drug cartel knew they wouldn’t be able to benefit from weed for long and decided to start pushing for the next thing.
Is it me or the article linked presents zero relevant content?
This is great and, in my experience, non-trivial advice. I often used to get stuck on a mathematics textbook, and wouldn't know how to go forward. Turns out, sometimes different textbooks covering the same topic will be much better, or even just will be better for teaching one specific concept.
Daylight Savings, back in the day
ERG? Google (and similar) didn’t disambiguate for me.
I think there is a relatively easy calculus here: calculate the amount of government spending required to get to "make everyone whole", subtract any new tax revenue/decreased benefits spending. If you're losing money, then you're probably better off not doing it.

The goal with the minimum wage is to provide a baseline. The same goal as general poverty reduction programs, so one should probably look at what is most effective from a government cost perspective.

This does shift the burden onto consumers, but this is probably for the best in the long run.
I wish more experts would give advice about careers/undertakings with this kind of honesty and a clear list of requirements to be successful.

With programming they built this whole myth that "coding is easy, bro, trust me, you don't even need to know maths" and then people approach it with an according attitude. Once they actually progress from doing CodeAcademy courses to more real-world-like programming they hit a wall, programming turning out to be hard doesn't fit their mental model of it being easy, they decide it's not for them and leave it.

On the other hand, it could be argued that people who need to be convinced to overcome difficulties in progressing in a skill are not suited for it, but I'd still say that the world could do with more honesty so people can calibrate their expectations appropriately.
It kind of sounds like you're from Uber, but you're not giving an @uber.com address?
I had a similar experience but amongst other things I got everyone's passwords and figured out how to bypass / control this weird bookshelf launcher whose name escapes me now. The head computer teacher found out but didn't make a big deal about it. Instead, me and a friend ended up getting hired by the school for our last year and got an office with a coffee machine since we were easier to deal with than the school boards IT.
If you ran a company wouldn't you enjoy to work with people you personally liked?
Entitled and immature. Not disputing that the author had a negative experience on this attempt to land a job he is clearly interested in, but his response to it doesn't take into account:

1. That in all likelihood nobody deliberately tried to make his experience negative - people (and companies, even very successful ones) make mistakes.

2. That the process of trying to get a job (like everything else in life) involves luck and hardship. Life isn't "fair" and nobody owes us exclusively positive experiences.

3. That interviewing for a job one wants is often stressful. We all wish to be validated and being put to a test is bound to colour our experience at least a bit negative. It's on us to discount that when judging others. Calling this experience a "horror story" sounds hysterical and out of proportion. Some people out there really experience horror stories trying to make a living and survive. A programmer being invited to apply to a slightly better job isn't one of them.

If the author did manage to get an offer he would be joining a large company where there are daily opportunities to feel wronged and deprived and complain about how unfair the world is. If he couldn't handle it for one day of interviewing, it's probably for the best if he doesn't make it his daily job.
What is it that you don't get?

From the article: "The idea was to discourage people from picking up a prostitute and pulling into a residential neighborhood to transact business."
This is why Kotlin is such a hit for Android devs, who are stuck with only half the features of Java 8 (at best).
CEO vs. CSO Mindset II: Breach Risk, Security Investment Thinking Like an MBA
ARISS Radio Upgrade on ISS for Student Outreach by AMSAT and ARISS
This is why poor people are coming en masse to california.

California exports poor people and imports rich ones.

https://www.sacbee.com/news/state/california/article13647809...
It's far more complicated than that, there's a big division in feminists over whether women should have the choice, or whether it's inherently exploitative by men.
Having run a small business myself I know, the hard way, it can be much higher :) I was just trying to pick a small uncontroversial figure.
I've never seen an Uber driver not use Waze in London.
Probably the original text was using ligatures for fi and fl and they got lost in conversion.

https://en.wikipedia.org/wiki/Typographic_ligature#Stylistic...
> The whole discussion is about whether PoS is equivalent to PoW in terms of environmental harm

it's wrong question anyway because it implies PoW necessarily causes environmental harm. PoW is consumption of energy, just like vast majority of other human activities. consumption of energy is not what harms the environment, at least not as directly as production of energy. the two are only closely related because of unwillingness of political elites to punish harmful producers, because those producers are the political elites or are closely related to them.
This comment brought the following quote to mind: "The fake is of far greater value. In its deliberate attempt to be real, it's more real than the real thing."

Imagine a painting which is locked away from everyone in order to help preserve it. Someone then shows up and creates a replica, and they share it with the world. Which one is more valuable?
Although I can see the utility in setting the right expectations for people beginning their study in physics, surely it does more good than harm to get more people interested in the field itself via exposure to the most eye-catching ideas in physics, even if speculative?

It's kind of the same way that more people would be interested in computer science because of strong AI rather than binary search trees.
People working fewer hours and bringing home the same amount overall also benefited.
I would have said the area I live was that a year ago. We saw the most job growth and lowest unemployment in the country, all while my house was likely worth no more than $150,000.

But the most job growth in the country requires that people move there (here) and they require houses when they arrive. With that surprising increase in demand, I expect I could get $250,000 for my house now, which is a staggering increase in a fairly short period of time.

On the other hand, if you're coming from a place where houses are selling for $1,200,000 (the 4 * $300,000 suggested above), then maybe you still see $250,000 as being affordable. We certainly have jobs. Every place of business in the area seems to be hiring.
> No possibility of making less money. I got older, and the Beast that needed to be fed got bigger and more demanding—never less.

In software development it's similar. I am now older, with a family, the days of "risking it all" in startups have long gone.
Fast food has good margins and a customer base that is surprisingly price insensitive, beyond that of choosing where to eat out. People who have time, skill, or inclination to cook at home usually already are, and those who are not take a lot of convincing to change their habits.

I very much doubt that at the level of fast food employee on minimum wage, you will see all that much of a change in the job, or for the people in those jobs to change all that much, purely because of a hike in minimum wage at that level.

Of course, if minimum wages were inflated high enough to make fast food businesses in general unprofitable, and not just the badly run ones, then this would cause economic problems, but I am not aware of this situation having occurred anywhere. If someone can tell me of a jurisdiction where McDonald's cannot run a restaurant, due to minimum wages being too high, then I'd love to hear, but it would seem to be an extreme exception, if it happens at all.
I had an off-site interview experience with Amazon a few years ago, they came over from the US/Canada to London and held a hiring event in a hotel.

You got put in a room and went through 4 face to face interviews which were very gruelling, but the interviewers were nice and positive (although to my British sensibility, maybe _too_ positive!)

I didn't get an offer, I don't think I have the chops to pass the interviews really, I found the preceding 2-3 weeks of interview prep very stressful and time consuming. It's not just the algorithms and data structures bit you have to revise on, you need to think up many anecdotes that align to The Leadership Principles. They're all over that stuff, you cannot be a follower you must demonstrate Leadership.

All in all though I appreciated the experience, I don't think I would apply again though.
This presumes that only women can be prostitutes and only men can be clients, among other things.