skysight-inc/HackerNews huggingface dataset:
Jubilee Line Extension was the '90s and Crossrail is opening soon, so those definitely weren't by hand!

I have seen articles about it, as well as a recent proposal to use that heat for heating homes. But it just illustrates the (many) potential pitfalls of small diameter tunnels, because you really don't want your tunnel to become an oven after a few decades of heat generated from braking.

Other pitfalls include:

You need space for adequate ventilation. This is less of a problem with electric propulsion, but you do still need it for emergencies (like a fire). And then there's the issue of noise; if your vehicle is too small compared to the tunnel, then the air being forced out once you get to a larger space (like the outside or a station) creates loud noise. Japanese high speed rail trains have much stranger aerodynamic shapes than European ones because they built smaller diameter tunnels and this ended up causing noise issues at higher speeds.
Local supermarkets have cameras with blinking red lights and a real-time screen watching you at the self-service checkout that you have to use because there are 5 cashiers in a hypermarket vs. 40 when I were a small.
I have a reMarkable Tablet and it is a really excellent hackable device. It's actually a full-powered Linux machine with an e-ink display [I think about 10"? Never measured...]

It works brilliantly for music scoring, though the downscaling by about 10% over standard A4 sizing takes a second to get used to.
Individuals in the US can do more to fight climate change by voting[1] than by planting trees.

The scope and cost of a PR campaign that would convince people to plant trees is staggering, and there's no single entity willing to pay for it. It's an issue of government taking action and extracting the money from the companies who have profited from pollution.

1. https://theconversation.com/government-action-isnt-enough-fo...
Anybody can use a differential GPS currently, you put the GSM base stations in survey mode and you make them broadcast their L2 phase.

I know there are networks doing that in some parts of the world, you have to pay to decrypt the signal they broadcast.
FYI, I upvoted your initial comment, but downvoted this one.
In the Texas Hill Country bluebirds used to be common. I'm not claiming that their decline is due to house sparrows, but it's clear that house sparrows can be quite harmful to many cavity-dwelling native birds. They can be extremely desrtuctive; it is not uncommon for them to kill both parents and offspring to take over a nest or nesting spot. One of many resources on the topic:

http://bluebirdnut.com/house-sparrows/
If you're talking about screen recording and screenshots, fair point, except that that lack is a result of designing for security.
Pledge is different from Capsicum though. Pledge is just your typical Unix style "capabilities", whereas Capsicum is object capabilities (i.e. https://en.wikipedia.org/wiki/Object-capability_model )

If you read the list of features, it's very clear that they are not talking about what most people think of when they hear "capabilities" in the context of operating systems:

> anonymous shared memory objects - an extension to the POSIX shared memory API to support anonymous swap objects associated with file descriptors (capabilities)

File descriptors are a form of object capabilities.
Not all insulin is created equal, as the Vox article posted in this thread shows - https://www.vox.com/science-and-health/2019/4/10/18302238/in... - different formulations vary in their effectiveness person-to-person regarding regulating blood sugar levels. For one person, the cheap ReliOn insulin from Walmart might allow them to manage their T1 diabetes, but for another person it might cause more incidences of hypo/hypergylcaemia.

The expensive, newer, patent-covered formulations like Lantus are what are prescribed over here in the UK - lucky that the NHS shields us from the ridiculous prices!
Nice summary! I'd enjoy reading more of your success stories rather than more mindless hurr hurr! Perl bashing.
Also, his video makes it seem rather easy aswell.
The scanline circuitry is quite simple.
There was a vertical-tab run in ‘13 that really hurt a lot of us; other than that, the Central Space Bank (at least in the US) has kept things fairly stable. (This is ignoring the doom-and-gloom quantitative-tab-easing conspiracy theory nuts.)
What I found interesting about his work is the hypothesis that earthquakes are predictable based on recent nearby earthquakes. This feels like something a machine learning algorithm would have little trouble building a model of, so I'd be interested to know what sort of results people have achieved if this has been attempted before.
This is not about the logarithmic vs linear scales, as I first thought, but about analytics and aggregation of events.

This is probably the gist of it:

> many interesting kinds of metric are very hard to aggregate and re-aggregate correctly [...] The best you can hope for is that your metric collection supports the recording of histograms [...]

On the funny side, I had to whitelist ajax.googleapis un umatrix to get rid of the white page. Fitting for the website's name.
Depending on the definition of the word "image" in this context, I'd love to see people play the electronics component version of code golf to see what the fewest number of basic components would be required to put an "image" on a screen. No SOACs allowed.
How to be a good networker in business
Slightly off-topic, but is anyone here using Wayland with a touchpad?

The last time I tried libinput, the behavior was horrendous compared to a synaptics.

2 finger scrolling had a ~2mm threshold before it activated and wouldn't compensate for the lost distance once the scroll started, making it feel very unnatural.

I couldn't find an option to enable true palm detection either. There was an option to disable the touchpad for a fixed time every time the keyboard was used, which is abysmal compared to how it works normally (ignoring taps and drags if they start too close to an edge).

It's hard to believe that this is the current state of things, but I did search for a way to set it up with no success. Is there a way to get those to work?
Ask HN: RTMP vs. WebRTC for a live streaming app?
For a simple live streaming (Android) app, which one would you choose and why? There'll be few viewers per stream (max 10) so scaling the service would involve supporting more ingest connections.

Most answers on the web seem to be from companies that have something to sell so you have to take them with a grain of salt.
I think that is a perfectly reasonable and prudent approach (assuming those who are interested can still navigate to it) - this allows these important conversations to take place without disrupting the community mood in the main thread.

In the longer term, I believe strongly that with some effort (https://news.ycombinator.com/item?id=20375985), perhaps HN might one day be the one place where such things could be discussed in an objective manner, and perhaps once we iron out the kinks in how that can be accomplished, the outside world might even be able to learn these skills and we could finally start to discuss these topics in a reasonable manner before time runs out (as seems to be the case with many of them, such as global warming).

Sincere thanks for allowing the discussion to take place.

EDIT: It seems others can't navigate to it from the main thread. Dang, if you read my reply (within the disconnected thread), I hope you can start to see why I believe this phenomenon is an important problem. Society is at a point of impasse on too many important issues. Our technological capabilities have been developing at a parabolic rate, but our cultural and language/communication developments have been largely static.

This imbalance is starting to become an existential threat on several different fronts, and I think it is time that people with "great" power should be starting to consider whether a moral obligation to at least try to do something comes with that power.
This is a total tangent, but it might be interesting to scrape map output for meaningful words formed by the braille characters.

Or we just leave that to enterprising conspiracy theorists, as a new kind of "backwards masking".
I've used Wayland and Gnome ever since they became available in Arch Linux, and I've never needed or missed any of those things. Yes early on there were some annoying bugs but this is life on the bleeding edge ;) These days it all just works.

There's a large group of users that goes to great lengths to customize their desktop experience. This kind of change understandably frustrates them. But it's important to understand that many of us just don't care very much.

Can it run gnome-terminal and Firefox? Can I switch resolutions and do multiple displays? That covers a vast majority of what I ever need from a graphical desktop. Beyond that I don't really care how the sausage is made.
Easy to add to Common Lisp. In fact, the CL code base I work on currently uses these.

https://github.com/hipeta/arrow-macros/
Plenty of historical examples from authoritarian states of generals conspiring to do away with a fellow general they don’t like for whatever reason.
Too many good apps fall victim to the temptation. For example, ES File Explorer. It went from a great app to one with too many ads to outright malicious and now the developer is banned from the app store entirely. I still haven't found a file manager that let's you manage mtiple tabs of file folders with windows shared folders with the same level of elegance.
Honest question: Do physicists studying these problems genuinely believe that these experiments show some kind of conflict or paradox, or is this just a case of people writing clickbait articles?

I'm not a physicist and only dug deeply enough into the topic to understand the basic quantum algorithms for factoring and discrete logarithm, but it seems to me that there is very obviously no conflict. It's just that the "observer of the observer" observes a meta-reality that contains all possible realities observed by the "observer". There doesn't seem anything strange about this if you just don't insist on "measurement" having a special physical meaning and accept the universal wave function. But maybe there's a twist I'm missing.
I'm not super familiar with the details of this stuff -- does this mean that there's basically no hope of any wlroots-based window manager ever working on non-Linux operating systems like BSD?
With X, you can switch your display server as well (and there were proprietary X server offerings available as late as the late 90s/early 2000s). It's just that Xorg, being internally more modular than XFree86, sapped the value add of redoing the entire X server and effectively "won".

In fact, with X you can switch out your display server and keep your window manager. Can't do that with Wayland -- by design.

Now who's huge and monolithic?
Please don't take HN threads into partisan flamewar. Obviously a comment like this leads noplace other than hell.

https://news.ycombinator.com/newsguidelines.html
The book is downloadable as PDF and reads very well on Kindle. As chapters are recognized as such and it's easy to directly open any of them. I'm looking forward to study the contents in detail as I hope to improve my abilities to build software abstraction layers with the described theory.
This process started years before the current leadership was voted in.
If you want to blame someone look at the socialists that were running the show one of whom is now in prison.

Edit added the prison part
Those are interesting. I hadn't expected them to be very hackable. Just something with ads on Facebook so I sort of wrote them off. Would be happy to be wrong.
Can you please elaborate.
Wayback is HN-safe: https://web.archive.org/web/20030912064745/https://www.jwz.o...
Engineers create synthetic, sound-silencing structure that blocks 94% of sounds
FreeBSD user too, I'd like to know that as well. Not going to lay blame on RedHat for doing what is in their own best interest, but do find it troubling that the *nix world has had a major piece of software made redundant on the decision of one company/maintainer.

As an end user my perspective, perhaps incorrect, is that since the late 90s development of application and system software has become increasingly siloed with less diverse views and the involvement of fewer stake holders.

I suppose that would happen based on math alone (more linux end users with no interest beyond a working web browser) but I worry where that path might lead.
Separate product seems like it makes a lot of sense. I suspect for most it is an either/or situation and you could keep each tool's user cognitive complexity lower by shedding the unused stuff from the other destination configuration.
> part of the reason that people get punished for uttering it is because those of us doing the punishing (myself included) are worried that people might start believing it

I think this is the irrational part people are detecting. Yes a few thousand idiots on the internet believe some anti-Semitic conspiracy theory, and a few more joke about it, but it's simply not something anyone remotely normal accepts. People also say that gingers don't have souls, but even that's not something that would be healthy to worry about.
Please take care of yourself, but could you please stop posting unsubstantive comments to Hacker News?
ES6 is an acceptable perl.

1. It has peg grammar

2. Reasonably Unicode friendly

3. Transpilers did what Parrot VM was supposed to do

4. OOP is flexible enough

5. Optional type checking and FP libraries

6. No macros and neither does Perl 6
> In my tiny EU country, 4G already covers 99% of the population and unlimited data plans for homes are available from 19 EUR / month.

Mine as well - in peak hours you're lucky to get close to 1MB/s in two bigger cities I've lived in. Also latency spikes even when the bandwidth is OK. Don't know how much 5G will help with all of this but 4G is not a good option as a primary internet connection if you work online and any upgrades would be very welcome.
There's no Red Hat. They got by IBM for $34 billion, I keep seeing a lot of reference to Red Hat in this post. Please call it, what it is. IBM. It's all about money. Much can be said about this, but money has really corrupted and polluted OSS.
It's a trade-off, though: Compactness and visual variety can help readability. There's a reason why symbolic math notation won out, and why the most regular and/or verbal languages (eg Lisp, Cobol) haven't won over everyone's hearts and minds.
maybe it was irony? or something similar?
Wow, never seen this before.

I don’t get the animosity HN sometimes revives.

I don’t really care for startup stuff and I just ignore it, but the average level of discussion here is extremely high. One of the best in the web.

Compare HN to Twitter or Reddit and it’s night and day, and it has been for years.
Lol. How about pretty much everywhere in Asia? China? Singapore? Korea? The "norm" is to live at home until you get married, when you use all the money you saved living rent-free at home to put down a hefty deposit on a house. I know actual millionaires who still live with their parents!

Given the difficulty of affording a deposit for new home buyers who have been renting since 18 (like me - Aussie here), I can see the logic in it.

I would go so far to say that the only time this is not the norm is when children move to a big city to work, leaving their parents back in their smaller hometowns. Then they live as cheaply as possible in dorms that exist for this purpose. There's a whole infrastructure.
Perl programmers read "$_" as "it".

So you could read the expression above as "fetch url, then await it, then get its json then await it, then get its ID"

Although I don't know why a syntax needs to be verbally legible, seems like an odd requirement to me.
HN is even written in a Lisp dialect...
Micropython runs in 16k RAM.

https://micropython.org/
Residential K3s Single-Node Cluster with KVM and Cloudflare's Dynamic DNS
"Abysmal" in what way? Enthusiast sites often confuse sufficient cooling with under-cooling. Cooling becomes more efficient when there's a high temperature differential. So engineers set up fan control so it only _really_ begins to kick in when the chip reaches 80C or thereabouts. Enthusiasts often confuse this with insufficient cooling. The chips themselves, however, don't really mind.
But the Python 2 development community a) has announced a specific date for end of life (January 1 of next year), b) had communicated the intention to sunset Python 2 in favor of Python 3 for years before the specific date was announced, c) is no longer applying anything but critical bugfixes to Python 2, and d) has collectively moved to developing Python 3. None of these are true of Perl 5/6.

Alternatively, if we're going to look for analogies in other languages instead of listening to statements from the Perl 5 community themselves, let's make an analogy to C and C++. Despite C++ having been a mature, usable language for decades, people are still using and developing C compilers and libraries.
Each time as fun.

If you know Lisp you will instinctively convert any syntax back to S-expressions anyway because that's how things will eventually work anyway and because you can't think of Lisp macros otherwise. So, the syntax becomes a burden, and thus you settle for the minimalist, easiest way to denote trees.

Parentheses.
Going with millimeter wavelength in cell signals could result in some interesting ancillary uses. Reminded me of this: https://www.youtube.com/watch?v=uQm_7aPjBUM
Help Me Attend the MIT Sports Entrepreneurship Bootcamp in Germany
Either that or people know a language and they get given a new project which is generally not written in that language and they find some compiler/bridge/some other tool that allows them to write what they need to write in the language they are accustomed to writing in.

So why not choose a Lisp.
If you do that you will lose flagging rights on HN. The policy about paywalls has been established the years: (1) if there's a workaround it's ok; (2) complaints about it are off topic because they make every thread the same.

Yes, paywalls suck and this is annoying. But it sucks less than the available alternatives. HN would be worse off without NYT, WSJ, Economist, New Yorker, etc.

https://news.ycombinator.com/newsfaq.html

https://news.ycombinator.com/item?id=10178989

https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...
I do not get why ppl are so obsessed about this legacy extensions, by now there is almost a extension for everything and I do not need that much consolidation of the UI.

Tab mix plus is basically now a light extension that just points you to about:config setting that are more then enough for me. The most important setting for me is to open all popups in tabs.

Also Mozilla has deprecated that old APIs for security purposes! Maintaining it with a small team of volunteers or some little donations is not gonna cut it. I am not "Anti" everything its just that I do not see the point of this AT ALL.

// Ok its not even a team its a one man project, makes it even worse. And isn't ESR now also build on a version without the old APIs? If not already that day will come and especially then the using it will be a big security risk.
Capsicum is dead outside of FreeBSD, the Linux port went nowhere, and in the handful of places where it is used in FreeBSD base, it's not even utilizing capabilities to its full potential. It wasn't even enabled by default for many years, until 11 or 12?

Meanwhile pledge(2) is protecting a large percentage of the OpenBSD base system, something like 85/90% of all programs. And unlike Capsicum, it is "practical" for developers. And important ports like archivers, and web browsers. The Capsicum project never shipped the much touted Capsicum-ized chrome, but OpenBSD has pledge/unveil chrome packages by default.
Source please?

Edit: I can't even ask for a reference without getting downvoted again and again. Nice.
text-based preprocessor.

Maybe 'asdf'? IDK, that's what this plugin uses:

(require "asdf")
(asdf:load-system :readable)
(readable:enable-sweet)

...
TBF, the author doesn't say that this is specific to the Play Store from the set of {Play Store, App Store}.
> it's incredibly insecure

I hear this all the time. But so far there was not even one incident where major hack was done via X11.

The reason for that is that people who use X also exclusively use trusted apps. The Wayland security model makes many generic tasks insanely complicated. The real world security gains will be zero. Security through obscurity never worked.
You mean the nights watch
Encryption law making life harder for journalists: claim
I agree. using -f is a poor excuse for not handling errors properly. imagine doing that in any other language.... oof
Would you please not take HN threads into political flamewar? Such discussions are all the same, and lead nowhere but deeper into flamewar hell.

https://news.ycombinator.com/newsguidelines.html

Edit: would you please not post political flamebait to HN generally? It looks like you've done this repeatedly lately, and the site guidelines explicitly ask you not to.
Learning Through Formation of Mental Models
When the prison population got too big and ensnaring prisoners became too efficient

It is undermining the productivity of our society when we have such a large marginalized population that is unemployed and desperate
Please do not take HN threads on generic ideological tangents. They are highly repetitive, therefore predictable, therefore off topic here.

https://news.ycombinator.com/newsguidelines.html
LinkLocationBar, panorama tab groups, websocket inspector, none of which have working replacements in webextentions.
Wow, I was not aware of that. Should I delete the version I'm using?
without 4G, there is no Uber/Lyft, Instagram, whatsapp, cashless etc mobile revolution. So, don't stay in your cave.
Smoot
Show HN: Classroomies, Learn from profitable SaaS founders, together with peers
> Basic math is _really_ important, and not uniformly taught well. Stuff like understanding compound interest would help a _lot_ of people avoid poverty or financial hardship. What's surprising to me is that mathematics education (in many places) emphasizes things that are rarely useful _in daily life_ while ignoring things that are actually critical in many situations.

Agreed. I remember asking in high school what the material we studied was helpful for as I was struggling with motivation -- I was told to help shape my brain which is the blanket reasoning used from everything from Latin to music.

I think in addition to the important areas you highlighted, statistics is so fundamental to understanding the world around us and should be emphasized alongside.
the fact that prisoners cannot vote seems bizarre to me. This seems like a massive tool to prevent your political opponents from voting.
You can use it as high-quality compost:

https://ashs.org/news/news.asp?id=403565

Sounds like a startup opportunity to me!
I understand how DOH can help prevent DNS spoofing, but I really don't understand the privacy claims. Are not outbound connections, http or https, known by the ISP? Or is the assumption that the world is all behind a proxy like cloudfare?
Can someone with more knowledge answer, is it possible to have one core in kernel mode and another core in user mode? If yes, is it quicker to message between cores or to context switch?
Great movie. Great play.
I went the „git” way once and I found it really cool! With all the goodies you get for free from git, like applying patches, checking differences, resetting to previous state etc.
I agree that CCL and SBCL are superb on Linux and Mac. But until at least a few years ago, they were both poorly supported on Windows (requiring something like Cygwin). That may have changed now. Also, AFAIK, CCL is dying now. :(
This is really the benchmark you want. There are only a dozen lines to patch. AFAICT OpenBSD neither has a cpuset(3) like API nor any intention of growing one, so you can just delete all the affinity code.