skysight-inc/HackerNews huggingface dataset:
If you could list the mistakes, the author could try making corrections and improve the text.

As regard O_DIRECT vs DMA, not sure what exactly you're saying. Understanding Linux Kernel book, for example, is using them quite interchangeably as well (4th edition, 2.6 kernel). Block devices are handled through interrupts and DMA, and these are lower-level means for doing IO. Scylla devs are using it quite interchangeably as well: https://github.com/scylladb/seastar/blob/master/core/reactor...

Wording might have been not optimal, but author never implied that O_DIRECT is DMA.

disclaimer: I'm the author.
TC39 proposals aggregator
This is cool! thanks.
Cristiano Ronaldo Waiting for 'improved' Contract Response – La Liga News UK
Alpine's package manager has the great property that you don't need to update the index in order to fetch a package IIRC; the whole `apt-get update && apt-get install && <cleanup apt-cache>` dance is quite tedious in debian-based Docker containers.
I think this is a nod to ESA who has stated they want to build a base on the moon:
http://www.esa.int/About_Us/Ministerial_Council_2016/Moon_Vi...
Elon's message: "Here's the rocket, it costs this much, go build it".
Basically trying to find more ways to monetize BFR.
No evidence of publication bias in climate change science
Write-up by the authors at [1]

[1] http://sciencenordic.com/no-publication-bias-global-climate-...
Considering how long it will take to get a proper bioshpere on Mars, which will only work IF we can teraform Mars properly, I dont think we'll be able to abandon Earth any time soon. I think the Mars colony will be something more like our base in Antarctica--a place for scientists, but not somewhere anyone would want to live permanently.
In social networks, group boundaries promote the spread of ideas (2015)
I did a similar thing, using a tiny executable that someone else had made. However, even though the container was around 100 bytes, I couldn't make a container that was smaller than some much larger number, maybe 512kb? This was in 2015, so maybe that limit has changed - any docker folks know anything about this?
While I agree Apple is not a Ad-company and therefore have no interest in tracking, one needs to look at Apple for just more than privacy. Cherry picking does not help!

1. https://en.wikipedia.org/wiki/Planned_obsolescence
Why limit memory or anytype of upgrades (I am talking hardware). How does it play on the 'environment'? Look at other hn thread "Right to Repair" https://news.ycombinator.com/item?id=15360362

1.contd. Not everyone can afford a $700 device. (second-hand phones are not always available as cheap as in SFO to other parts of the world). Even $200 is a lot for many people. (and they too need internet, whatsapp).

2. Software: Android OEMs are worst offenders, agreed. Why apple limits updates to older macs? Privacy?

3. Whether you agree or not getting trapped inside one-closed system is uncomfortable. Try editing icloud calendar from linux or windows. Oh yes, do not tell me that only OSX has privacy other OS do not.

4. I would get a iPhone the day, Apple foregoes the $1 Billion that they supposedly get from Google for putting the search. Why not offer privacy to all? Apple is famous for deciding 'what the user' should do? Why not force everyone to use 'DDG'.
C Program to Finds the Roots of a Quadratic Equation Is Real or Complex
Not only when read by a C programmer. I'm a JS programmer and I don't understand what's "overly clever" about something you learn in JS 101.
It’s clear you really hate fun, but why?
I regularly do, but then again i live in a metropolis where every channel hosts a station; i imagine it's a bit less useful in the country. Also use it as a room monitor with the help of a small transmitter.
SpaceX BFR (Big F*ing Rocket) travel any country in about 30 minutes
I wonder if they can compete with Boom Supersonic [https://boomsupersonic.com/] at the fuel cost. One reason Concorde failed was NOISE and FUEL COSTS.
I quite like that idea, although I guess in my head the drones were more a cynical Received Pronunciation, like Daniel Craig’s Bond.
I am sure mil would love this tech
Long time ago I used to make amateur remixes, and one tricky part was to isolate vocals from the remixed track. To do that I was using the noise removal tool: select a part of the track without vocals, run a spectral analysis on it and then substract the result to the whole track. Most of the time the result was terribly mangled, but sometimes I got something usable.

this demo got me thinking: if I want to remove something very specific from one track instead of learning a generalized filter, can I train this model with a smaller dataset, like a few seconds from that track?
‘It was good when we were the only group getting money but now that other people want a piece of the pie I don’t like the system anymore’
I put together a couple of wardrobes for a friend which was fine, but she still had to get a genuinely useful person in to drill them together and attach to wall etc as I lacked the tools.
> It is very easy to forget that high-tech engineer is a species that only thrives in politically stable countries.

I disagree, a lot of nations became stable because of engineering solutions in the first place and also more scientifically literate. There is a ton of examples of this. The first telescope, as an example, thanks to Hans Lippershey and Galileo Galilei showed that the earth wasn't flat and removed some power from the church it also clearly made us see that the sun doesn't go around the earth so it showed that Copernicus was right all along. A big discovery that made people doubt the christian religion and change the political landscape forever.

All big scientific discoveries changed the societies in a big way and there is no going back. Scientific discoveries and technological innovation is the only thing that push a society forward.
Loving this..Big visions, some may work, some not. Inspiring..Going against odds, this is what humanity should stand for. These are the real 'moonshots'.

Would love to see these kinds of big picture roadmaps in other areas/industries. It's a shame so much of our possible progress is politicised.
"In the real world, “market cap” is based on a claim on a company’s assets and future cash flows."

Is that true? I thought even in the real world, market cap simply meant price_per_share * num_shares_in_circulation.
Regarding these suborbital flights, is there any way for an adversary to know that the flight isn't actually an ICBM?
So the key takeaway for me today compared to 1 year ago, is that Elon has put a lot of thought on how to make this plan economically viable compared to just the vision last year.
Multiple potential streams of revenue:

- Government/intragovernment contracts to cleanup space debris.

- Government/Private satellite launches.

- Earth to earth transportation which Elon announced on Instagram that the cost would be comparable to an economy fare. https://www.instagram.com/p/BZnVfWxgdLe/

- Transporting gear for ESA's moon base plan http://www.esa.int/About_Us/Ministerial_Council_2016/Moon_Vi....

- Transporting Government/Private equipment to Mars.

This is very much a realistic business approach compared to last year's vision presentation.
> To your specific question: no, I don't think a transistor radio would require certification unless it was somehow RF emissive.

How would you know your device wasn't RF emissive if it was never tested? By design, sure, but that doesn't account for radiated spurious emissions.
Average IQ scores seem to have been falling and population ageing may be why
You make two very, very large claims that require a deep dive to support.

>With increased technology comes more liberties for all.

...uhm. What? How? Examples? a line of thought? Gimme something here.

>Progress is not made by politicians, it is made by engineers.

Again, what? That's an overwhelmingly naive and narrow view of the world. JFK helped expedite aerospace research, as well as the NASA administrators who didn't do any engineering work but kept the agency running on track? They get no credit in the 'progress'?

Politicians were not partly responsible for the development of long range rocketry and nuclear fusion that came out of WWII?

It's strange to me that people are assuming that when I question the _kind_ of technological advancement being focused on that I'm critiquing _all_ technological advancement. I challenge you to find that critique in my words. Again, I would be most excited about a future where the _primary_ goal of the progress is the reduction of inequality. How can we talk about 'progress' without first talking about the rubric for progress itself? How are we (you) defining progress?
Isnt't it implied as part of any work contract? I am pretty sure it is the case everywhere in older Europe.
This. I'm a loyal Emacs user (used Vim a couple years before migrating to Emacs and always kept it around) but I must confess: I'm in love with kak.

It's not Emacs (although it is powerful) and will probably never be (even more so to a lisper) since it doesn't try to. But it is easy and minimal, which gives me some pause after long Emacs hours.

I was very impressed to find that it has some degree of integration with tmux and with ranger, both tools that I love, to do window splitting and file management respectively. So clever and such a strong setup for a newcomer!

I don't really feel it as a competitor and I still do work in Emacs, but it became my default terminal editor and my fallback $EDITOR. Knowing vim made things a lot easier and everything that I discover about it feels like an improvement. Highly recommended.
A zero byte Python script can grow up to be anything in the absence of constraints, the infrastructure label makes it simple to say no when thinking about including a feature, and to ease selecting one implementation strategy over another. The nerd within would love to implement subtree detachment ( https://github.com/dw/mitogen/blob/master/docs/images/discon... ): this is basically the beginnings of an Internet worm, but it has zero practical use for infrastructure, so it's complexity I'd prefer to avoid.

Commercially, the killer feature for me in this library will be its Python 2.4 support. I need that for consulting work, but that constraint stands in direct contrast to a general purpose framework for use in application development. Developers want shiny new Python 3 and suchlike, commercially I've never needed that and will be unlikely to need it for a few more Debian/RHEL/Ubuntu releases (I'm guessing, probably 2019)

I don't want to rewrite Pyro4 or end up with a design as complex as CORBA (with all the pain transparent object proxies entail).. it should have just enough complexity to make it ideal for the target use case.
And the Boring Company… doesn't get any more earthy than this.
Smashing Food Flavors of Zimbabwe – Exploring Motherland Africa
It was the default editor on the AIX systems we had at college, not the usual vi, for some reason. This was in the mid-90s. Wrote a hell of a lot of code and Usenet posts in it. Also my first HTML homepage in '94, and my first Java in '95!
With PIN you are actually limited (as far as I know), but as I already said in my previous comment the password is better and that is what I have always used on my iPhone.
Both would be very hard, my Outliner Lighto [0] program uses the Video unit that Free Vision uses and the main reason it cannot do unicode is that the screen is handled as an array of 8bit pairs (one byte is used for the character and the other byte is used as a pair of 4bit numbers, one for the foreground and one for the background) pretty much the same way that CGA had its text mode. All drawing in Free Vision is done by writing directly to TDrawBuffer types which are basically arrays of such cells. Also Free Vision specifically (this isn't a limitation of the Video unit) has a maximum width limit of 255 characters (technically it is the maximum width of a view, but the "desktop", the menubar, etc are all views).

You'd need a very massive overhaul to introduce unicode and more than 4bit/4bit color pairs to Free Vision.

[0] http://runtimeterror.com/rep/ol
The plan is good and modestly aggressive time-wise. But he has to be careful. Even a single high-profile disaster with human loss or precious cargo will put the whole endeavor at risk.
An airplane goes roughly 500km/h. Elons rocket was going 20000km/h - so I think it's about 40x worse actually. Not to mention a rocket goes straight down so none of that speed is lost.
Add Blu-Ray Collections to Kodi 17 for Enjoyment
With no offense intended to mathematicians, a lot of the higher level material in my pure math courses tends to be of the "How many angels can dance on the head of a pin?" type. Debating the finer points of details that are mostly irrelevant minutia, yet which are given just as much text space as serious results that actually do things.

Physics' real-world origin prevents a lot of that sort of thing, and places emphasis on a practicality I find deeply appealing. Cauchy-Riemann equations are important, here's where they come from, here's what they do, bam done.
So this is a pretty niche problem but my preferred radio station is a national broadcaster based on the east coast which is delayed for FM broadcast on the west coast (where I am), while the internet stream is live.
"Micro's number one feature is being easy to install (it's just a static binary with no dependencies) and easy to use."

Ok after reading that one sentence I just closed the page. Why would I want an editor whose number one feature is "easy to install"? Like any other editor is hard to install by the way.
I thought the ship was going to take off
Which is valid opinion. I just view it like if you are going to spend the money on iPhone and still use Google's services you are "losing money". You could have just gotten Android which has better Google integration for cheaper price.
Then the proxy will not route requests to the host specified by the container's label.
> Did you even read the comic?

I confess to skimming the introduction, thank you for the clarification.

> What do you think that tells you about their working background? Do they sound like stay at home mums?

This is just flogging a dead horse. They aren't stay at home moms and I wholeheartedly agree the burdens should be shared equally, as I wrote in my original comment.
I'd rather build my backend with Perl than do sysadmin stuff with JavaScript, if I really have to stay single language (which I wouldn't, but I can understand the motivation and it basically gave birth to Perl in the first palce). But mileages do vary, of course.
you could land a big freaking robot in pieces, or land a bunch of killer drones in enemy territory
Linux PIE/stack corruption
Start: https://youtu.be/S5V7R_se1Xc?t=26m12s
even if it cost multiples the cost of a concorde ticket, i'm sure some would want to fly from sydney to new york in one hour.
Yes, I've had an exchange with the author about this, and he said, it might be possible to tweak this, but his is buried in some obsucure configuration.
can anyone think of scenarios where somebody has to be somewhere in an hour?

what about making one of those the new airforce one?
Ask HN: Smaller-scale startup ideas related to space?
I'm really excited how the space industry is gaining momentum, with SpaceX just announced more details of their Lunar/Martian plan, and a number of countries starting to set/pursue their goals in space.

I would love to take part in this space industry growth. However, I am from/living in a country that does not have a proper space program, nor it will have a solid one soon.

So I'd like to ask are there any space startups or ideas out there that:

1. Do not necessarily require being in a country with a space program/industry (i.e. US, Russia, China, India, etc.)

2. Are focusing on non-transportation part of space industry, i.e. creating equipments/tools/software for space use, space agriculture. Not building the actual rockets or satellites.

3. May not be commercializable now, but will be in 5 to 10+ years?

I'm hoping to hear anticipations, not accurate predictions, of what you think the space industry would be like when it reaches the mass.

What ideas that excite you and might make you jump into the space industry? Perhaps similar to when the internet started its accelerated growth, we talked of the coming of blogs, social media, online payments, e-commerce, etc.
> most of the time low quality

Huh? Do they have instruction leaflets where you live? I live in Germany, about 80% of my furniture is Ikea, and I've always found the instructions to be very precise. I was never confused about what to do.

(I won't argue that some furniture needs an additional pair of hands to assemble just because of the weight, of course.)
They mislinked because the page they sourced for the statement has a weird set up where the url changes based on your scroll position on the page (scroll down and you will get this link [1]). It's an honest mistake, not clickbait.

[1] - http://www.reuters.com/article/us-usa-fcc-apple/fcc-says-app...
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That's a very very small amount, real currency markets do trillions a day, bitcoin is the size of a large company. He's totally right, that's a small liquid market when compared to the real markets. If you tried to dump 10 million in bitcoin all at once, there's a good chance you're going to crash the market; 10 million wouldn't even move the price in the EURUSD.
> Scientific discoveries and technological innovation is the only thing that push a society forward.

No, man, that's simply not true. That's an incredibly technocratic view of the world.

Using the U.S. as an example, the (belated) end of slavery in the U.S. didn't come about from a scientific discovery or a technological innovation. Technics played a part in the exacerbation of the issues, but it was politics, culture, language, religion and "spirit" that ended state sponsored slavery. I think that was a decently large push forward for society.
> If you pay attention when reading them

Ah, that's the problem. We all know that users never read the manual. :)
I hope he creates methane collection facilities on earth, it would reduce co2 as well.
Not true — it's neither impossible nor illegal to get someone to fix my washing machine. It's just that I don't know who's reliable, and will it cause severe problems, like a flood. Or will it break up when rotating at high speed, hurting whoever is next to it? I merely chose to throw it away and buy another one.

The point of my comment above, and amelius's if I understand correctly, is that a service model eliminates this risk from the buyer. I'll be able to get another washing machine without incurring a financial loss.

What matters at the end of the day is having a working, safe, reliable washing machine. Having a right to repair is only a means to this end, and not an end to itself. A service model is another means to this end. Don't confuse the means for the ends and entertain only one means.
Usually I agree about his presentation. However this one was quite a bit worse then most of them.

The slides were not in sync confusing the audience. Not knowing when to clap, made it really uncomfortable.

He seemed to just drop stuff randomly without a narrative thread. When he showed the BFR/ITS for the first time, he had a much clear threwline, even while rambling in between.
On top of that, he could have just written "currentChunk++;" and skipped the comment entirely.
Good thing almost all discussions of SpaceX and Mars on HN includes a comment like yours!
I think the mars ticket includes many other things, like food and everything required to live for 2 years.
Better link: https://arstechnica.com/gadgets/2017/09/fcc-chief-ajit-pai-w...

Until iPhone 7, there was a FM chip but it was from a commodity board and Apple actually never connected the chip to the phone. After iPhone 7, it simply does not exist. All this is in FCC filings of Apple.
That's a difference! Striving to be useful is not the same as being categorized by the ruler as being useful or not.
What kind of file have such long lines? Have you considered a text editor that can wrap lines?
I was actually asking about the difference between the two exporters mentioned in the comment I replied to but thanks anyway.
Depending on the exact architecture used, it's surprisingly easy to accidentally leak your first IF oscillator out the antenna port and broadcast it to everyone in the area. The FCC seems to be relatively lenient about FM radio receivers in general though and let manufacturers self-certify their compliance with the rules without any independent testing.
I think the key is that this rocket will replace the F9/FH/Dragon architecture rather then being a separate line of development.
No, you still need to, but there's a compact syntax for it that will update and discard the index in a single 'add' command. It's unavoidable - somewhere some querying is happening in order map the package name/ver to a download link.
> He said the heat shield ablates for Mars trips but not Earth trips (not sure why)

Falcon 9 presently lands completely without any heat shield, because it just uses it's engines to reduce velocity until they are not needed. In principle, you can always replace heat shields with fuel like this.

Mars trips need to bleed velocity aerodynamically because the craft cannot bring enough fuel. Presumably a sub-orbital hop on Earth can save enough fuel to act as the brakes.
I adore Gtk2 look and feel. Oh, why you had to go, Gtk2, why? Gtk 2 had a soul, and Gtk 3 feels like it wants to scream "hey, I'm like macOS, but free!"