skysight-inc/HackerNews huggingface dataset:
You're confusing two subtly different things.

Residential power in North America is usually delivered as "split phase", +120V, neutral, and -120V. (180 degrees out of phase: https://www.youtube.com/watch?v=vOh2OSJ44eE) The voltage across the two hot conductors is 240V, which is used for big stuff. You get it by tapping a transformer in the middle of a coil: https://en.wikipedia.org/wiki/Split-phase_electric_power

Three phase power has three hot conductors, 120 degrees out of phase to each other. In the US it can be delivered at a bunch of different voltages, depending on what transformer the customer installs, but generally I worked with 277/480. (277V hot to neutral, 480V hot to hot. Generally all commercial lighting runs on 277V.)

And to be specific, three phase is primarily useful because motors that use it are self-starting, you don't need to capacitor-and-switch arrangement single phase motors use, which frequently break. Less important now that most big motors use VFDs. Also, supposedly due to some frequency voodoo you don't need to use as much cable when running three phrase transmission cable.
We Need More ‘Useless’ Knowledge
I would guess that up until now the biggest thing preventing anyone from investing in small-scale CRT manufacturing is the simple fact that there was an inventory glut that covered the world demand for CRTs for nearly a decade after the last one was made. Now that we're apparently getting close to the point where there's actually demand for new CRTs is when we can find out if it's something that you can build a business around.
Look up Finnish modular homes. They work in climates where temperature goes below -30C.
Yes, but if you have zettawatts of energy to pump into a space station, you probably don't need to be doing something so crude.
It depends on the person, but what is the median time in hours, for a person to finish this book?
No. But at scale members within a society behave in a reliable way. It's often predictable. Sometimes it requires the benefit of hindsight to realize a behavior choice. But going forward it's generally pretty reliable.

Those bad behaviors are often incentivized by regulation. And the best fix is often to simply remove those regulations. Not by adding more. Especially when it comes to real estate, zoning, and rent control.
> We’re looking at a situation where playing Donkey Kong in the way that its creator intended is reserved only for the most dedicated collector. It will be prohibitively expensive to recreate that experience.

While this is a bit sad on some level, the art itself will survive the transition. After all, nobody these days experiences Romeo and Juliet in the way that its creator intended, yet it endures. What I'm more worried about are those games that are going to be completely lost once the hardware expires; we can preserve the game data itself all we like, but without proper emulators you're SOL (and unless CPU speeds start doubling again, we're never going to be able to even semi-accurately emulate anything past the Xbox 360/PS3 generation). To say nothing of online games that will vanish into the mist once the servers get taken offline...
MIT OCW Scholar has those subjects and more with HW, exams, and lecture notes and is intended for autodidacts.
> Or if there are patents that would block a startup.

Given patents usually expire after twenty years it seems very unlikely there would be anything still valid for CRT manufacturing (at least for these arcade machines from the 80s. There may still be a few flat CRT / WEGA patents and the like that are still valid from the mid 90s, but they won't be valid for much longer either).
If you want something written in text it's always been the react documentation for me
That's good to know. I guess then this is for an audience that doesn't include me because the tech podcasts I listen to often have repeated ads of about 1 to 2 minites in length but they are relevant to the audience (tech meetups or conferences, hired.com and others for job finding, or even the random blue apron spots) or are easy to skip as they happen at around the same time and for about the same lengths. Good luck.
I'm on a beast of a machine that I could only dream of when I was stuck inside the Apple ecosystem.

Granted there were a few of annoyances I had to find workarounds for, but nothing unsurmountable, we are devs after all. There was a lot I had to relearn the-windows-way, old habits I had to drop, new ones I had to adopt. But with experience comes expertise, and you get used to the new way. I now have that handicapped feeling when I use OSX, death by a thousand restrictions. Funny thing, I never noticed them before, I assumed that's just how things were.

You don't know how far you can push and customize an OS until you make it your main environment and force yourself to stick to it until you overcome and find your new workflow. Pussyfooting around with Windows while you use OSX on your main machine is not how you test the OS for fitness, nor how you change old habits. You have to go in it with an open mind, you're not going to find OSX in Windows, you WILL have to relearn new ways of doing things, then you have to dive into the deep end of the pool head-first and attempt to hit your stride.
this one put me in the mood https://qkast.com/share?channel=2&moment=1488779609869
I mean, illegally obtained evidence is still evidence. I don't think it's absurd to think police want to convict as many guilty criminals as possible, particularly if the crime is heinous enough to justify risking their own jobs by breaking the law to get evidence.
There is no post scarcity society without a post enlightened society.

Theres far too many people who will look at someone without a job and say "work harder, you moocher", and then argue using first order logic without any facts or context to say that all safety nets should be taken away to ensure that people dont become sloth like.

Add to that, the manipulation of the media, and manipulation by the media and you have the perfect constraints to ensure that people there will never be a post scarcity society.
Ya, I really don't see how they can justify displaying other people's content. They did the work, but they don't get the clicks or ad revenue or even a chance to keep the user on the site.

I wonder how Google would like it if someone launched a site that when you search, it doesn't display results from its own database, but perhaps just a selection of the best results from Google.
Freshman at MIT here taking this class -- the lectures are actually taught in a flipped classroom format, so I wouldn't imagine they would release the course considering there are no lectures to follow. I could see them releasing problem sets, however.
I lived in Beijing in 1999-2000. Went to a furniture shop to look for something.

I see there a family of 3 choose furniture and point a fairly large sofa. They leave the sofa there and pack themselves in their Mercedes and drive off.

Two guys carry the sofa out, and pack it on a tricycle, with a remarkably high-placed centre of mass for the whole. One guy rides off with the transport bike, presumably trusting that there is a servant at the destination helping him out to carry it to the apartment.

You can do this, but I suppose it requires quite large income inequalities for people to be willing to work with it.
I don't really see how that applies to the situation at issue here - the facts that the state wants to protect seem to be around the technical details of the way in which the evidence was acquired (the article talks about source code). The lawyers for the accused don't need to disclose the source code to their client to be able to say "The state's expert witness is going to testify that at such-and-such date and time an IP address which the ISP says was assigned to your account at the time logged into the site under such-and-such account name and access such-and-such content", which is the part the accused can refute. Their testimony on the source code itself wouldn't be accepted anyway.
Furthermore, the semantics of Ruby are not unusual at all.

Being a scripting language in a class with Python and many others, Ruby basically competes on syntax and libraries/ecosystem. As long as the ecosystem is good enough, it's reasonable to choose Ruby over, say, Python for developing web apps purely because you like the syntax.

What I'm getting at is how people will avoid Scheme, Prolog, Haskell, etc. because of "syntax". Which is a loss, and a bit ridiculous as sufficiently different semantics require different, unfamiliar, "scary" syntax. Getting over that is syntax prejudice is just a matter of adjustment.
I agree. Artificial food can be 3-D printed for various textures and flavours can be added to make it seem familiar for those need the nostalgia.
It's not even clear that PRISM implies an automated process. It appears to just be the NSA's internal name for the process of using the FBI to request stored data from service providers.

And to make this clear: U.S. companies must comply with valid court orders. Being a "PRISM member" is not optional.
I can't say I've encountered many of these examples as shown in the article, but perhaps that is because I don't search for nazi-like content.

I can't see myself in a situation where I'd ever have to ask myself, "Who is the king of America?", at the same time I have had some good experiences in terms of Google being able to snatch snippets directly from page body that answer my question as if Google itself was talking to me.

Good, and bad. It will always happen. No matter my opinion, I'd love to see for Google, and any other search engine, to tackle low-quality content that's only built to promote ad revenue.
I failed so hard at this in my CS degree :(
This is a great set of examples of this problem.

Of course, the offered solution is "hire a bunch of people to check the facts", which seems to be underestimating the scale of this issue for humans, and perhaps overestimating the difficulty of classifying credibility.

Considering that Google's bread and butter is general site credibility, having some "truthiness vector" added into the mix doesn't seem impossible?

Someone might say "why does Google decide who is credible", but they already do this through the search results anyways. They just don't seem to be able to differentiate between something matching a search, and something being factually accurate.
I Tracked My Mouse Movements and Clicks for 3 Days
Yes. If you want to kill an app in Windows, use Task Manager or powershell.
It's immature to rail on R for things like how its syntax doesn't look like that other language you already know, but yes, it's extremely quirky. And its unchecked flexibility, while great for experts providing DSLs and such, enables non-programmers to produce garbage implementations. The vast majority of R's myriad community packages (R's biggest strength!) seem to be written by a grad student who read half a tutorial.
I came across this issue just now when searching for "ec2 pricing" - the featured snippet links to https://aws.amazon.com/emr/pricing/ instead of https://aws.amazon.com/ec2/pricing/, which looks close enough to the correct URL that I didn't notice it was the wrong page until I realised I couldn't find costs for i3 (which just came out). I'm surprised that no one at Google has fixed it yet; surely there are at least some Google engineers that use AWS for personal projects.
Very bad page on Firefox too, if you use the scrollbar (and probably in other ways)...
Google has developed advanced NLP algorithms, so it should be easy for them to corroborate such data before it gets pushed to featured snippets. On second thought, maybe they're already doing it and sites including authority are just copying off each other.
Interestingly, the reason 'not chasing status' is a status signal itself is because it shows that you are confident enough not to worry too much about status, kind of like stotting [1].

[1] https://en.wikipedia.org/wiki/Stotting
If COBOL was the right tool for the job I wouldn't let the syntax, of all things, stop me. But that is hardly the greatest of COBOL's weaknesses at this point. An odd example.

If Python is otherwise a good choice for whatever you're doing and you're avoiding it just because of the syntax, that's an example of what I'm talking about and you should just get over it. It's just a change of perspective.
practical for colonizing other planets maybe
Do you have any evidence for the claim that TOR is so badly compromised? My understanding of the article is not that TOR was hacked, but rather that a tor user was tricked into opening a non-tor site and thus giving away his/her IP address.

Also if just the exit node is compromised, encrypted connections are still safe (TTBOMK).
Better in technical terms; better SNR, non-destructive editing, enables remote collaboration, more versatile and flexible.
I seriously hope its not aadhar!! If its aadhar then im downloading it right away. Free ad data!!
I have a 4k monitor and a 1080p monitor connected to my Win10 desktop I'm typing this from. The DPI scaling works pretty damn well, apps switch DPI settings the instant they pass the boundary between the monitors. Sure, sometimes it breaks when games etc change the resolution on the 4k monitor, causing a window to be unscaled on the 4k monitor, but that's fixed simply by moving the window to the 1080p screen and back.

What trouble did you have? It's pretty great for me.
It's a house, not a bridge. The concrete doesn't have to be especially exotic, just made to the right spec.
But is there really a small cohort of CRT nostalgics out there? I mean I get the records, the sound is unique and music is absolutely ubiquitous. Arcade gaming is a much smaller market and I find it hard to imagine that there are enough CRT purists out there to warrant a business.

Especially considering a nice new OLED could be fashioned to look like a CRT.
Are there any libraries like this for JavaScript?
This is just rampant populism and greedy politics in action. Everyone understands that the most reasonable solution would be to simply build more (yes, it's possible even in old cities like Paris, just allow adding a few floors on top of every building). If a 20% tax in addition to operating costs of apartments did not help their cause, what - except more tax money - do they expect from 60%? A hypothetical greedy speculator will just rent 1 of 3 apartments and break even.
No, I think you're missing the beauty of the system, which is that although there might be a global average status that is truly zero-sum (you can't increase your global rank without pushing someone else down a position), if status is indeed multidimensional, then every person can search for some community or group that will give them status within that community.

In in practice that is the case. Most people in the world won't care to have this particular discussion with me, but here in HN I can find like-minded people and hopefully get sweet posting karma.

That allows people to focus less on the global zero-sum status game, and more on finding a community or group that they can usefully contribute to.
Unrelated, LeTourneau was a name from Old French, meaning The Starling, and is the origin of the surname Turner. I only mention it because I had been taught that Turner came from the profession of wood turning, but it turns out that was unlikely to be correct after all!
Yeah... I've found Mac/iOS to be quite frustrating actually. Especially nowadays that their UI's a designed by designers who like things to be pretty — and you just can't change something no matter how bad it is (unless you want the touchpad to move the scrollbar instead of the page. they'll let you do that, even tho it's completely useless. they're not opposed to choice or flexibility, just opposed to ones that make things understandable or powerful at the expense of pretty).
The top tech leaders and regions in the world: Shanghai on the rise
Quantum computing gets an API and SDK
Some before/after shots would have been nice to get the point across.

The biggest abuse of tables I see (and have often been the implementor of) is showing too much information for too many workflows that are slightly related. I'm sure most of us here have seen what happens when we add "just one more column" over and over again until is becomes that giant abomination with dynamic sorting (some even do it client side) and a million filters that force people to click 20 times just to do their job.

I think it causes a lot of maintenance issues as well, it's much easy to work with many smaller and more task focused displays than it is to work with the big "do everything" ones.
It's fascinating to me how you banned this comment, but not the 400 comments above it that make basically the same point without saying these exact words.
#3 is enormously true. Not just Russia, but any other country we can push around.

So many people honestly ask, "Why do they hate us?" If they had any concept of what we have actually done--most of which is still within living memory--that may just be enough to change our foreign policy into something slightly less disastrous.
Why not just change your password?
If your affiliate account doesn't get shut down I would love to know how you got through the process.

I did a similar thing, and they shut it down every time someone made a purchase because I wasn't providing "original content". Despite my complaints that there are/were plenty of people not providing original content they said those affiliates were grandfathered in. It was an incredibly subjective process that I eventually gave up on out of frustration
The position lists a Ph.D. as a requirement - that's just for the researcher position, right? I'm interested in the development roles; does a Master's degree focused on systems meet your qualification requirements?

Also, what's your e-mail, so I may contact you?
An app that lets you pretend to receive a call when a co-worker distracts you
You can't design a language with Haskell's semantics and Ruby's syntax. So if you want to use Haskell, you just have to get over your dislike of the syntax. It has a beauty of its own, but you'll never see it until you get familiar with it.
I wouldn't be surprised if it's Yahoo again.
> they use some networked block storage that's not yet supported on FreeBSD apparently

This may only apply to their physical offerings, not to the VM-based ones, and you may be able to get it to run using some nasty hacks (possibly involving loading your kernel after booting theirs). Either way, there are no official FreeBSD images so you'd be on your own.

Their IPv6 support is indeed lacking (one address, and you lose it if you stop the server).
interestingly this link has been shared multiple times on HN and never discussed.
https://hn.algolia.com/?query=PatternsOfSoftware.pdf&sort=by...

I wonder why?
> its lead cartoon dystopically depicting a UFO-like Red Square hovering over and phallically invading the White House

I'm sorry, what? Am I the only one who thought it was a clear nod to Independence Day?
A lot of people are commenting (correctly) that any cost savings achieved here are trivial relative to the land cost. I think this is looking at this tech too narrowly though. There are many areas of architecture that can be revolutionized by cheap, accurate mass-customization.

One example would be energy. Right now heat transfer and the transmission of daylight through walls/windows can be theoretically optimized to reduce energy costs simply by customizing the geometry of the windows and walls relative to their orientation and local context. We don't do so in architecture because the costs of customizing the geometry is too expensive. Architecture has a history of attempting mass-customization since the 1960s[1], but it's always been limited by the technology and realities of integrating multiple subcontractors and consultants. Those problems still exist, but the industry is changing pretty fast and I feel automated form generation, simulation, optimization, and production technologies are converging to a point when this could be achieved.

[1] i.e John Habraken.
There is an online course '30 days of React' with an online PDF which teaches React in small chunks.

You can also use React[2] and Redux[3] tutorials by New Boston and practice along with the course.

Other than that, You can go through React documentation or register for courses on Udemy and Pluralsight.

Links
[1] https://www.fullstackreact.com/30-days-of-react/

[2] https://www.youtube.com/playlist?list=PL6gx4Cwl9DGBuKtLgPR_z...

[3] https://www.youtube.com/playlist?list=PL6gx4Cwl9DGBbSLZjvleM...
EBay's Node.js based React alternative
Dingdingding!
> Phones ARE computers

Computers that need jail-breaking, though.
Yale Lawsuit Spotlights Title IX, Sexual Assault 'Hysteria'
The random synchronicity of life! I am halfway through this movie, having watched the first two hours last night, and planning to view the rest of it today. First time ever, and didn't really know much of it. When up pops this posting on HN.

I assume I shall have to watch the whole thing before it meshes into coherence, so at this point no ruminations on the actual quality of the thing.
it's all about delaboring. that is it.
Well think about it... 1 Tesla = 10,000 Gauss. When you're talking about magnetic fields in MRI coils, or planetary magnetosphere it helps to use a larger scale. When you're talking about EM forces on the scale on an atomic nucleus though, it's more helpful to speak in terms of Gauss.
I looked at the article going in with a somewhat sympathetic view. But after reading that the person is at Microsoft, I thought "Well, good. Maybe now he will know what it was like about 10 years back for folks who were probably working just as hard as he is, plus having to deal with the absolute jackass behavior of the same company he now works at."

Karma?
There are sites like that. Startpage.com is an example.
In Sweden, where I live, there are lots of prefabricated houses. An example of what it can look like: https://www.myresjohus.se/vara-hus/annedal/ So it's clearly suitable even for colder climate zones.
Well aware of that alternative :P I had a display glitch with a game client where it would take the whole screen but not really display anything, leaving me with sound and a working computer but no display even after alt+tab or even ctrl+alt+del. I basically had to blind type win+r > "cmd" > taskkill /f /im Gw2-64bit.exe whenever it happened :(
They'd be using local PV for the field. With PV at that scale, they'd need to beam it back to Earth. And that could be quite the weapon system.
I suspect most of those history questions are answered via Wikipedia. From what I've seen if the snippet isn't using Wikipedia it's not useful and/or accurate.
I can answer this. (Background: I was a PC user 1989-2007. MBP user 2008-2016. Back to PCs from 2017 onwards.)

I do machine learning development. It is very helpful to have a CUDA-compliant GPU (read: NVIDIA) on your local machine so you can develop and run things quickly. Yes, you can use AWS, but that is costly, you need to push your data into the cloud, and you definitely cannot do it w/ sensitive data such as health records/medical images with localization clauses. None of the major machine learning platforms work well on non-CUDA compliant GPUs, most are barely functional outside NVIDIA cards.

I waited over a year for the new MBP and was disappointed to see no NIVIDA GPU on them. I love the MBP, it is an absolute pleasure to use. But the new line had barely any horsepower improvements. It was almost a step back from the 2014 MBP I already owned. Further, the cost was obscene for the value/improvements I was getting.

I'm not happy about it, but I purchased an Alienware w/ a hefty NVIDIA card and 32GB RAM. It is a beast, but it meets my work needs. I do miss the agility of a MBP (e.g., carrying it in one hand to a cafe or onto a plane), but ultimately horsepower is needed more.
The OpenStax team has you covered-

College Algebra/Trig: https://cnx.org/contents/E6wQevFf@6.35:nU8Qkzwo@4/Introducti...

Pre-calc: https://cnx.org/contents/_VPq4foj@6.57:vEOnJry_@2/Introducti...