skysight-inc/HackerNews huggingface dataset:
> I'm not sure batteries will support vehicles being in motion 10 consecutive hours. And in some categories (busses, delivery bikes) it will be as lot more than 10 hours a day.

The Toronto Transit Commission (TTC) is buying 300 all-electric buses:

* https://www.electrive.com/2021/04/27/toronto-to-procure-300-...

They currently have 60 as part of a pilot project, in addition to a whole bunch of hybrids.

It seems to be a case of pay now, or pay later:

> Besides the infrastructure cost of chargers, each electric bus can cost $200,000 to $500,000 more per bus than an average $750,000 diesel bus.

> Case acknowledges that is "significantly" more expensive, but it is offset by fuel savings over time, as electricity costs are cheaper. Because the electric buses have fewer parts than diesel buses, maintenance costs are also about 25 per cent lower and the buses are expected to be more reliable.

* https://www.cbc.ca/news/science/electric-buses-transit-1.582...
Yep. That was my plan, do the cheapest best course that would get me an F1 (student visa) then do an internship with OPT and switch to full time.

Agreed, re FAANG or other companies that have a USA presence.
It's the other way round. The London wage differential is much higher than the rent differential outside London.
I've been a freelancer many years (not in developer roles) but it's all the same - alignment of expectations. Some clients know how to do it clearly and upfront and some will drag you through a continuous "improvement cycle". Therefore the first and most important interaction is to a very deep talk about the expectations in terms of - timing, tools, deadlines and more. The more experience you'll gain the more questions you'll have to ask your clients about your domain.

(apologies for my English) and best of luck!
It's not pseudoscience, but it might be pseudoengineering.

Some of the arguments for fusion become amusing when you substitute "perpetual motion" into them, though.
That's a non sequitur. I know about lots of things that were not civil disobedience.
Clearly he was in a more privileged position than a random person from a black township, who would have been swiftly packed into the back of a Land Rover and dealt with extremely harshly. Even people with public prominence weren't exempt, as the case of Steve Biko shows. But Tutu was using the little power he had - as an official representative of the church - to challenge the apartheid laws in an obvious way. There were much easier routes he could have taken - challenging the laws with words, but living somewhere that wouldn't provoke the police. I don't know you, but I get the feeling you don't know quite how vicious the apartheid regime was, and the kind of physical risk that this entailed. Because no-one had done it before, he didn't really know what kind of response he was going to get. "Cheek" doesn't really cover it.
Recycled Lithium Ion is much cheaper still, but more risky (and less maintenance). You'll have to do some pretty fanatic inbound QA to determine whether all your cells are safe to use. but if you do that and fuse your cells individually you should be able to make that work.
That does not cover almost anything in the article. It's a long article, so maybe you could quote the bit you're responding to.

A CPU scheduling trace wouldn't easily show you the details of the kernel-level group throttling that was causing a lot of issues, for example. They weren't having an issue with threads fighting other threads, they were having an issue with threads being penalised now for activity from several seconds ago, drastically reducing the amount of available CPU.

The article clearly shows a lot of debugging and diagnostic patching ability, so it's unlikely they missed the simple options. Rather, they probably didn't mention them because they were obvious to try and didn't help.
Things We’ve Never Seen: The James Webb Space Telescope Explores the Cosmos
I did cologne to vienna this summer and it was lovely. Look up nightjet
How much should one expect kids to cost? Is an extra $1k in expenses a reasonable estimate?
> * At multiple points in the McDonald's self-order touchscreen kiosk flow.

And they've only added (most of) these recently. What they've done for me is is increased the time it takes to check out by at least a third. They're paying for the ads with lengthened lines, which is a little shocking when talking about the automated option, because customers choose the automated option to save time.

It might be a bad expectation for us to have. McDonalds might find it more profitable to start ripping out seats (especially with covid), and adding more automated checkout stations. Have us spend 5-10 minutes ordering. Offer discounts if we spend 10 additional minutes ordering and watching ads. Enter us into a sweepstakes while we order that pays every half-hour in free food.

You could cram a lot of 2-sided touchscreen stations in the footprint of a McDonalds; people standing everywhere like a pachinko parlor, or a storefront full of video poker machines.
I read that the EU is planning on giving high priority to trains, including night trains.

https://www.cntraveler.com/story/europe-is-undergoing-a-slee...

I would really like to be able to use one of those
What? Vertica exists since 2005. New products/services come and go. If that precious data truly has so much value, then it is already being processed in your inhouse system.

These new services are nice for startups and for eventually outsourcing... Aaaand of course for upselling to folks who are already in the faith.

Velocity is and advantage. Yes, but if you really see a brutally good deal with some new AWS service there's nothing preventing you from using it, DC or no DC.
Please take a look at the following comments thread https://news.ycombinator.com/item?id=27820466, in particular at https://news.ycombinator.com/item?id=27822662 where Massimiliano Gubinelli (one of the main TeXmacs developers) explains the issue.
I don't know exactly what was "required", but I do know that the tradition of "going to where the organisation sends you" is far stronger in the clergy than it is in elected politicians.
I have seen enough of his videos to know that he can be spectacularly wrong (dangerously so) about some of his stuff and if you are not already very knowledgeable about this then you may well end up following some very bad advice.

This guy has far more practical experience and seems to be less error prone, and also does not shy away from showing when he gets it wrong, which is often far more valuable than a polished and edited video:

https://www.youtube.com/channel/UC0pBauLp63yzf6sVdEOIUbA

If you want to learn about DIY off grid power from youtube I'd start here.
I think there could be some ways to make it work even in untyped/dynamically typed languages, as long as they support prototypes. Or use Applications Hungarian (not Systems Hungarian!) to add this facet of type information.
I don’t think that measurement of social mobility makes much sense in this context.

Sure, moving from lower working class to upper middle class is probably easier in Sweden than in many other countries. But the thing is: it doesn’t make much of a difference.

I have a sneaking suspicion that the Nordic welfare state kind of games the social mobility score in this way, by having such a compressed income distribution. If you go from $20k after taxes to $35k after taxes you’ve moved through more or less the whole income distribution, but your life is pretty much the same.
Velocity-sensitive?
I'm living with my son and girlfriend with a roommate. It's doable if you are open minded, know open minded people and don't care too much what society thinks a family should look like. An honestly, it's great to have a buddy right at home in these social isolation times.
I’m in the UK. So not anymore. But we still apply GDPR rules as far as I’m aware
Great series. Have you also read the Locked Tomb series by Tamsyn Muir?
One edition of the owner's manual for the Mitsubishi Mirage (Space Star in certain parts of the world) has CO² emissions figures as measured under both the old NEDC and the new WLTC standards. For the smaller 1000 ccm engine model in combination with manual transmission, start-stop saves a measly 1 g/km as measured per NEDC, and actually uses 1 g/km more if measured according to the WLTC.
Tech stock is taxed at around 50% when you get it and then 20% of the upswing. So $475k total comp is more like $250k in your bank account in practice.
It’s not a comparison, simply an observation that the “modern technology movement” has deliberately chosen to borrow Nazis terminology. I’m not comparing them to the Nazis in any way.

This is an understandable mistake, Godwin’s law is frequently abused.

The man himself has frequently criticised people for abusing his “law” in the way you’re doing now.
> Pearson and other correlation coefficients are linear, O(n), sorting would incur logiarithmic multiplier O(NlogN).

> Thus, it is not computationally efficient.

That is not really what I meant. First, I personally consider NlogN the bar for "efficient" as far as algorithms go. Anything polynomial is inefficient, and anything better than NlogN is like, "super efficient" in my mind. Maybe that is a weird opinion, should I update my mental model? My reasoning is a lot of well known algorithms operate in better than polynomial but worse than linear time.

Second, sorting is a solved problem. Regardless of theoretical efficiency, we have so many ways to sort things, there is almost always really fast in practice ways of sorting data.

I didn't know about sorting networks, that is fascinating!
So what you're saying is on premises you need competence to do things but in cloud incompetence is no problem!

These are arguments that wreak of developers who don't see the need to worry about things like 'cost,' 'reliability' and 'efficiency' because of the need to be 'innovative' and breaking stuff faster to win the market.

I'm sure it's fine so long as the developers are really competent.
Ask HN: Moving from tiny websites to serious tech skills?
I’m a self-taught web coder and have made some small CRUD systems for very targeted tiny clients during my professional life. I have also made a few hobby sites for fun just for myself.

I’d like to expand my skill set but I have trouble visualizing all the moving parts of a “big” web app and all the tools that go into it—when people talk about containers, or testing, or deploying such-and-such, I don’t have a clue. With HTML/CSS/JS, I can spin up a little demo to play around and learn on another personal/toy project, but how do I, as a solo person, learn about larger-scale technologies?

I’m a visual artist and print-based technician so front-end would probably be the place to focus. Is there a recommended path for going from hobby projects & small sites to larger-scale best practices in React/another important platform?
Even I find it hard to believe that people would do things like this. One of Le' Carre's novels "Russia house" has the plot where the protagonist co-operates with intelligence agency and in the other novel "Spy who came in from Cold" (one of the protagonist is tricked and unknowingly does the spying). Given his novels mirrored to a great extent how the intelligence agencies worked, probably this was not an uncommon tactic used by intelligence agencies.
Where I live, a 2:2 university degree is still referred to as a 'Desmond' and many people don't even know why.
That's right, the paper has practical estimates of convergence only for continuous functions (kind of). For hash functions this coefficient is useless.
Yes, and doing that in a disarming way, with cheerful friendliness, and everyday normality.
I’m a Vim user who finds the ideas and promise of Emacs intriguing. The reason I don’t switch is your comment about performance, which is echoed by everyone who has used both editors extensively. I’m in Vim all day. A performance hit would hurt. I need my editor to be fast.
Accepting GP didn't intend to imply this but, generally speaking, many people would judge you as unsecessful but that is their problem and not yours.

I drive a 12 year old car that has been reliable as any new car I've owned and drives pretty much as well too. The fact that I am not impressing anyone as a consequence is something I've grown to be comfortable with as I have gotten older.
I think the first step is to stop checking Slack when you’re out of hours!
Christmas tree with a thickness of one atom
NIF also has an expendable blast shield in from of each mirror of the final optics. These mirrors have to be in line of sight of the explosion. If you tried using something like this in space, without that shield the expanding plasma/hohlraum fragments would go right out though the vacuum to hit the mirrors. Even slight imperfections there will explode under high energy pulsed laser irradiation.
Your point is very valid one. I was not able to find out how to keep ranks updated efficiently.
Advertising as it is done presently has at least three faults, which is just as much a fault with the ethics of society for allowing this to go on:

- adverts seeks to hijack your attention away from whatever you were doing, which is a mental burden resulting diminished performance (in the case of a work environment), is downright dangerous in the case of traffic environments and lessens the enjoyment in the case of leisure activities.

- there is little to no ethical restriction on content; the advert that gets displayed is likely not that of the best product: it is the one whose owner paid the most money, and the ad that gets the most traction is the one that tells the best story, so perfused with lies by omission and other forms of deceit that we don't even notice any more.

- the ubiquity of ads causes an perpetual escalation of the struggle for attention, to the extent that we might credibly expect to get ads implanted in our brains eventually if we don't say enough is enough.

The solution seems simple enough to me: we need to establish a code of conduct for advertisers which at the core means that they may no longer shove ads down our throats at every junction; instead adverts should be freely displayed in separate spaces (like a dedicated page on each website) where people voluntarily could look for products and services that they need (or just to browse), much like the ad pages in newspapers of days now long gone by.

All we need is a mechanism that promotes this behavior, and sanctions breaches.
Telling "lure you attention" is just a way to frame it. There are plenty of evidence that visual monotony has negative effect on mind, and FWIW in most modern urban environments (blocky, and painfully uniform) ads often do a little bit of favor by providing variance. I've been to places where street ads are heavily regulated to the point it's noticable that there are less billboards and they are more plain. Unless those are full of historical baroque, gothic/art nouveau buildings it absolutely doesn't make it more attractive (I support restricting ads in historical towns).

As for claim about accidents: how about murals, decorative lights on houses, big brightly lit windows?
Thanks for the clarification. So according to their theory, I could train a model on any code, even private Microsoft code, and that would be okay? That sounds surprising to me.
Actually TLS happens client and server side and protects data in transit whilst established. But that means over the network.

If you want to protect the actual contents you should encrypt it within your application and not rely on the TLS layer to protect it as various products, tools and services strip off this layer (for better or worse)

Lots of people think you can protect your data just by using TLS which is false. If you don’t believe that try using mitmproxy or fiddler.
He has a point, but there is a thing you can do to offset some of this: read all of the comments. Plenty of times there will be someone in the comments pointing out what's wrong in the videos.

The problem with Lithium Ion installations of any size is that the batteries are inherently dangerous and mistakes can easily set you back more than you saved on the whole thing. Unlike say your car where as long as you stay away from suspension, brakes and steering the worst that could happen is that you end up stranded by the road side.

Another issue is that when it goes wrong with Lithium Ion it can go wrong fast and it isn't easy, or sometimes even possible, to stop a thermal runaway once it gets going, especially with densely packed cells, besides the fact that you likely won't be watching your batteries 24x7.

There are some people on youtube that advocate for extremely unsafe practices (Jehu Garcia, for instance) and that have a huge following, so Will Prowse is certainly not the worst that you could run into there. It would also be good if he indicated more clearly what his sponsorship relations are and how that relates to the advice that he is giving, quite a few of his videos feel like thinly disguised ads.
Yeah I don't think the KGB were making artistic scrapbooks in their spare time. Whole article is BS
I remain steadfastly convinced that it's good for humans to have some unnecessary luxuries.

It'd be amazing if everyone had things they don't need. I'd love to live in a world where everyone had what they need and more. That's a no brainer.

The problem is that you're saying "the luxuries they're unwilling to compromise on" should be considered needs because some entitled rich idiot isn't able to accept that they could actually live with just one kitchen. That's stupid. They're still luxuries, and absolutely not equivalent to actual needs.

Needs and wants are not the same things. Arguing that they are, and that they're just two things on a scale of wants, or that they're two things on a scale of needs, ignores that there are things people actually need and things that people can live without.

I'm not arguing that rekabis shouldn't have their second kitchen. I'm only saying that they could live without it, and that they would probably give it up before giving up the privacy of their bedroom. Maybe that's wrong. Perhaps they could put a bed in it and sleep there. I don't know.
I agree, Homebrew is really slow, but as slow as compiling everything from source.
That neener-neener attitude is a great example of why advertisers need to be told "just no, for the entire rest of your lives, without exception".

What fraction of your lifespan spent behind bars do you care to wager that you can wiggle and sleaze around the rules? Especially ones that are applied by judges with common sense, rather than algorithms?
Why do you need an arbitrary distribution? We are talking about breaking ties, just use uniform. You can probably just use RDRAND.
This is true, but there are definitely positive exceptions to this rule.
I've found you can often mute those screens if you press one of the buttons beside the screen. Apparently it's different depending on the machine, so just mash them all I guess.
As someone who is considering the FIRE path, I appreciated your point about the taxi driver. I have a list of big projects I want to pursue after getting out of the corporate world, but I wouldn't recommend FIRE to someone who just wants to be lazy: I don't think laziness is good for mental health.
* understanding what you're actually doing is better than outsourcing your knowledge.

Most of the issues I see from either on-premises or cloud generally come from not actually understanding the business/use cases/environment. Cloud becomes the 'solution' to a problem of people and process, rather than a value proposition that augments existing reality. You can't make good decisions (e.g. Should I outsource my taxes) if you don't understand what doing those thiggs acrually involves (which most people don't bother to even try).

And usually worked into this is a lot of outsourcing of expertise to the point the business relies on third parties to tell them what to do, which is never a cheaper outcome.
Every VODXS faucet is connected directly to the blockchain
Given my experience in NL, I would disagree. I see a very clear class divide here, which is just mostly ignored by the middle/upper classes and government.

Most of the population spend the majority of their income on rent, commuting, and essentials. Students also have lots of debt over the past decade (15k on average). Owning a car is expensive, but so is public transport (esp. for a family). Renting is expensive, but so is buying a house.

Income tax brackets range from ~40-50%, while corporate and dividend taxes are minimal - 15-20%. VAT is regressive and applies on almost all goods incl. groceries, ranging from 5-21%. There is no capital gains taxes, so this obviously benefits the economically active upper/elite classes who have assets/savings to invest - while middle class families do not own much at all.

Since the Mobility Index rankings focus on lower -> middle class mobility, it shows the Netherlands in a positive light. However, the income divide between the two classes is actually not as pronounced as the USA, while the gap between middle to upper is incredibly massive (like most of the world).

I guess what I'm trying to say is that despite the expected policy differences and rankings, NL is quite strongly divided economically. In my experience, the average Dutch don't mix with the poor, nor show off their riches, nor think too deeply about the elite classes. This mindset is essentially ignorance - neglecting poorness, brushing off government corruption, and assisting the funneling of taxes & wealth.
So are the mp3 files not the same as what the author uploaded? I could imagine weird organization for tracks from the service but for self-uploaded data I would be surprised if they didn't just give them back the same.

The article never mentioned how this showed up in the GPM app itself which feels lacking.

Otherwise a nice article but it reminds me why I long ago gave up on media metadata organization. So much work, so much mess...
Lost Talks of Linus Torvalds
Great post, for this pipeline I would have probably used a makefile for the batch pipeline instead of airflow just to keep it simple. I would also make my sink a SQLite database so that you can easily search through it with a web interface using datasette.

For the places where bash was used I would just use python and any cli tools you want to call I just use subprocess. It’s much simpler and I can run the scripts in a repl and execute cells in Jupyter or just normal pycharm so its quick and interactive.

Love that you included something on building a data dictionary, I am honestly guilty of in the past not including a good data dictionary for the source data. I would just leave in the output of df.describe() or df.info() at the top of the jupyter notebook where you restructure the source data before processing it. I now think you should include and save as a CSV a data dictionary of the source data and the final data as it’s more maintainable or at least leave a comment in your script.

Otherwise everything else is pretty similar to what I would do, I just went to my google takeout and apparently all my google play data and songs are gone so I guess I can’t try this myself…
Scihub version with better quality images here: https://sci-hub.st/https://www.jstor.org/stable/41613687
> If you go from $20k after taxes to $35k after taxes you’ve moved through more or less the whole income distribution, but your life is pretty much the same.

100% agreed - my sibling comment about NL also implies the same.
Generally I'd agree with that and I never leave the engine running just to save myself the bother of scraping (and ideally I've remembered to cover the windscreen with a plane the night before so I only have to scrape the side windows), but I'd make one exception: Sometimes the weather conditions are such that the windscreen immediately starts icing/fogging over again, in which case you really need to leave the motor running at least two or three minutes for the heater to at least minimally start working, so you can actually see where you're going.