skysight-inc/HackerNews huggingface dataset:
Consider there are over 500 trains active during (non-pandemic) peak so I guess some compromise is clearly required! And yes, a very pleasing display nonetheless.
Visual open data! It's not clear to me in America if I can buy the 'Tube' one. I've spent quite a bit of time in London and it just interests me more. Wonder if they'd also consider making a Paris Metro one?
The Cartesian Trojan
> People will have vote with their actions if they want things to change.

This is why populists or platforms like FB make sure that people either don’t know that things can change or that they already live in the best version of the reality and, well, everyone else has it worse.
Same here, fun fact is that even at school and high school I was the only boy that could understand a basic text or do a basic conversation but even with that I always had troubles just to pass any test.

Learned English playing games in the early 90's

In any English test they ask me to put a phrase in passive form and I was like: the f* is that?

And most probably for maths/physics It would be funnier to do some angry birds with numbers than calculating the movement of a random body in a parabolic movement.
I hate it! Simple
Also very dirty exhaust
I love your comment. I follow, and appreciate it, but I could not help but think of this xkcd: https://xkcd.com/793/
The example of git has another aspect to it - teamwork. If you are working on your lonesome then you really can have just the one branch and use git for backup purposes. You get a nice record of your work and you can roll back files to before the stage when you broke them. The rest of git beyond that seems a bit complicated, perhaps something that a genius linux developer might need but not necessary for your simple presence on the web. Heck, tarballs seem better suited to the task in hand and git really does seem to be solving a problem you think you don't have.

However, if you are working in a team with live code that needs to be updated in a formal way then the rest of git makes sense. It no longer seems to be theoretical mumbo jumbo, you have to learn this stuff to get work done and to stay on the team. At that stage you have someone such as a team lead who is able to actually teach you. It does relate to the project in hand and is not just some textbook example. You become a convert and git is solving problems you do have.

There is a slight chicken and egg with this though as you need to be able to use git to be in the team but learning it properly needs the team environment. It is like learning to play cricket all by yourself.

Maths is not something that the real world provides great examples for. Personally I get excited if I have to use basic trigonometry for work. If I have to use something like simultaneous equations I am ecstatic about it. Yet in maths education this real world 'advanced stuff' is just beginner grade. It doesn't even get a mention in the two inch thick maths textbooks from my undergraduate degree. The two inch thick maths textbook is utterly devoid of a single real world application, it is just symbols all the way.

If I was to make a TV series then it would be on the history of mathematics. In the day job I once used a formula that some Persian guy worked out 2500 years ago. I can't remember the specifics but I had a great feeling of standing on the shoulders of giants. This Persian guy didn't have a calculator, a computer, a biro, paper as we know it, the internet to quickly find answers or even the number zero. Yet his maths was neater than every example on Stack Overflow I found to help me with what I needed. So what was the problem he had to solve to come up with brilliant maths? How can we use his maths to solve problems in today's world? As soon as you start looking at maths with some incredible history telling the story it comes alive and is interesting. Importantly in this way of learning maths the actual formulas can be looked up rather than learned by rote. It is the application that matters rather than the abstract.
I'm wondering if a workable idea would be instead of having pedestrian paths and bike lanes and wondering where new kind of vehicles should go to have different tiers of lane with different speed and weight limits.

For exemple:

* < 10 km.h^-1 & < 15 kilograms vehicle for pedestrian paths (Which would for exemple allow small kids to ride there).

* < 25 km.h^-1 < 30 kilograms for the bike lane equivalent.

* > 25 km.h^1 or > 30 kilograms on the road.
I do think it's true, and likely the majority view too. The saying has many, many alternatives (for quantitative finance, it's "you can teach a math PhD finance but you can't teach a finance PhD math [at the same level that a math PhD is at]") in different studies.

I think it just boils down to knowing the fundamentals or not, and arguably a person who only studied ML will lack a wide range of tools in their toolkit to be able to tackle tangential problems that an engineer could (whereas the engineer already has the tools to build up their ML toolkit). In my anecdotal experience with teaching, knowing how to learn is heavily correlated with how general (as opposed to focused) the field the person is in.
Any server with 512GB of RAM. So basically a couple of bucks per hour, to generate a few words per minute.
I'm trying to think of times when I've seen a non-functional elevator and can't think of one.
I know. His FRAP & CPDT books are great reads.
I can't say I'm an expert on RedHad's business model, but I think this is what they've done with Linux. Mysql did something similar as well, but in their case they built mysql from scratch themselves rather than attaching to an existing product.
Scientists Used Dopamine to Seamlessly Merge Artificial and Biological Neurons
thank you, i'll need to give this a go
In a lot of jurisdictions, the same goes for the actual sheet music. Even a lot of facsimile editions - literally photos- of the sheet music claim copyright to the "creative work" embedded in making the photo.

The result being that in many jurisdictions, you'll have difficulties finding public domain sheet music of obviously public domain music for which it is clear (the longest living) composer died over 70 years ago.
$1000 in 5 days using Auto-Tweet Zapier Integration (How I did it)
Yep, the baby knows how to cry when not sucking it’s thumb for example, and not cry when its content.
Might be a good idea to not use the phrase "kernel module" since it means something very specific (code you insmod on linux, kldload on fbsd and so on) which isn't supported on OpenBSD since 2014.
I wouldn’t put it that way; that’s why I said Anatoly was in the ballpark.
Fifty perfect photons for 'quantum supremacy'
Your updated suggestion was my first thought as well. That way you could follow a train as it moves from one station to the next.
They learned from their detractors. Before they started witch hunts on Twitter, there were other groups that did the same in the age of the early net. Difference is that many people now have a public persona on social media.
Especially not corporations :)
As an outsider who has spent the past 7 years in the UK, I feel like the definition of “pretty independent” has become a bit more fluid.

But yeah, it’d be nice if my taxes were spent on the problems we’re discussing here, rather than giving people access to cheaper Tim Tams.
It's 1.77kb of JS. But in any case, I don't think you need to worry about many people using it.
We must address the security risks posed by quantum computers
Show HN: Single Page Portfolio
+1 on My Little Pony. Equestria Girls is great - characters can be irrational and selfish and mean, and friends have serious arguments and fallings-out, but their commitment to their mutual friendships works out in the end
In Belgium, second hand bikes tend to be overpriced, because many sellers aren't aware of the disproportionately high cost of local labor compared to the cost of producing a new bike. The price of local labor should be taken into account because you need it to maintain the second hand bike. I used to buy my bikes second hand, but I've switched to buying a new one every three years, and it requires little maintenance since I choose a higher end one.

I agree with you comparison to cars. In the last five years prices have significantly gone down thanks to big players like Decathlon or online brands, but they're still quite high. 500 euros can buy you 1000 kg of second hand metal, or an entry-level bicycle. I know there's more to it, but I still don't understand why good quality bicycles cost so much to produce.
I get #2 and #3, but why #1? I like being able to "whisper" to people privately. Private messaging has been part of all communication protocols and pre-web2.0 social networks, and even in real life, you can lean in towards someone and, well, whisper something in their ear.
No surprises, the country is deeply hostile to capitalism and innovation. Brazil is not poor by accident. Too bad, as this could have been a boon to small businesses.
What are you calling reasoning? Is reasoning something entirely separate from choosing what word is expected next in a sentence based on the logic of the words? You can give GPT-3 things like "Alice was friends with Bob. Alice went to visit her friend _____" and "10 + 10 = 20. 20 + 20 = ___" and get right answers. You can tell it the definition of a made-up word and ask it to use the word in a sentence, and it can come up with a sentence that uses it in a relevant context. You can give it a short story and ask it questions about the story. All of these go far beyond basic syntactic concerns like putting subjects and verbs in the right spots.
wow. When I have the time I'll have to add a janky gate that closes but you can still see the text passing by.

Can also be a bit bumpy when it passes "floors".
Live real estate price index for NYC, by neighborhood, based on repeat sales
You actually do lose quite a lot of information, particularly so if you have a limited bit depth/other quantization noise.
Over-engineering is the curse of smart guys without enough experience.

I believe this is well documented today, but maybe not that much in academia.

What they need to avoid this trap is to talk with people who got burned earlier.

As a rule of thumb, don't design for future use case, ever.

Future-proofing is a fool errand.
hibbelig, you're exactly right.

Chef/Puppet/Ansible are all enforcing a state which is usually defined by a package being installed, a file present, a service/process running.

Nothing groundbreaking.
You missed my point. Sure, blogs are written by "some guy on the internet", and anyone should be skeptical about anything they write. But journalists are also "some guys on the internet"! They should be kept in the same security ring. There's no difference in competence or accountability between a rando and an entitled journalist.
Similarly, several people I know have self-diagnosed themselves with COVID-19 due to just one symptom. In some cases the symptoms have disappeared the next day. In many cases the people are the "usual suspects" who seem to get ill several times a year anyway. I'm not aware of a single person who has definitely had COVID-19.
Good stuff. I didn't use Nerves but overall use of distributed SoC is a neat idea.
Can you post the link about the GDP/A. thaliana correlation? That sounds hilarious, and Google is failing me to find it myself.
> perhaps lights should stay on until the train reaches the next station?

At peak times that would mean most lines would just be constantly lit
I expect bike and component prices to go down with wider adoption. Especially e-bikes. I was for example surprised to see that on my kids-towing e-bike in a hilly city I have to change front-disc-brakes pads approximately every 1'000km which, at 20€ a pair of disc-brakes pads in Switzerland, translates to approximately 0.02€ per km just for braking. Which at the end of the day is not an issue for me but seems SO expensive in comparison with a car.
I thought that might be the case. No worries!
IMO if designing for future use cases is hard, you probably don't understand the problem well enough to be designing for future use cases. Any design you make will be wrong. Write what works and budget in the rewrite.
Why Every Software Team Should Have a Developer-Experience Owner
No types, but implicit side effects everywhere. Also, recursive functions blow the stack (in Lisp, not in Scheme).
If you like this sort of thing, you should also check out the Netherlands Bach Society [1] on Youtube. They've been producing incredible renditions of Bach works and sharing them freely for a while.

[1]: https://www.youtube.com/channel/UC2kF6qdHRTM_hDYfEmzkS9w
End-to-end tests are more overhead than unit tests. End-to-end tests are also not great for testing the many edge cases that you are likely to mess up if you refactor carelessly.

I also don't see how a robust type really helps there. It might even be part of the thing that needs to be refactored. Besides, many languages don't have a very robust type system.

End-to-end tests and type systems certainly have their uses, but for refactoring messy code, I don't think there's a good substitute for thorough unit tests.

Although there are different kinda of refactoring of course. The case I'm referring to was about one very messy module. This makes it very easy to unit test. If instead it's the entire architecture of your application that needs to be refactored, then you're looking at a very different case, and end-to-end tests become more important than edge cases.
Indexing Jsonb Columns in PostgreSQL
We should, but you'll be facing major pushback not just by US politicians, but in regards to Indian nationals, certain very large companies who's entire business model relies on H1-B being like it is because one of their intentions is exactly to have them come here, get any extra training, experience, etc and then farm them out to native corporations.
If google makes you feel more secure that doesn't mean it's secure. Feeling secure perhaps works for you but if we would assess how they deal with our data they would be quite far from pool of companies we can trust with data.

And that's only based on what we know currently from security incidents.
Alt+Arrow on OSX is Ctrl+Arrow on Windows.

I just switched to OS X recently and I am definitely having the reverse trouble getting used to the Cmd/Alt+Arrow I almost never have problem finding Home/End on any keyboards (been using Windows/Linux for 15+ years). Nowadays for laptop it's almost always fn+Arrow for Home/End.
Maybe that is the reason it didnt catch on? (actually I am having the same question as you)
Islamists are also right wing extremists. They are just as nuts as right wing extremists from other religions. Not sure why you need so much to separate their acts of terror. It's just insane people who have imaginary friends on the sky that guide them to kill real people.
Take care though, hydraulic disc brakes doesn't always mean more stopping power. I found budget ebikes are mostly fitted with really cheap disk brakes that felt spongy and lacked safe stopping power. Good cable rim brakes are always better than cheapo hydraulic disc brakes.
Yes, here's an update:
https://cloudinary.com/blog/how_jpeg_xl_compares_to_other_im...

TL;DR: We're now at "Draft International Standard" stage; soon we'll enter "Final Draft International Standard" stage and at that point the bitstream is effectively frozen and adoption can start. The officially ISO-published International Standard will take until first half of 2021, but the codec should be ready to use before that.
Google to start including fact-checks on images
A lot of your math is way off, brother. Sure, NERVA was close to 1.0 thrust to weight ratio, but that says a lot more about the state of technology at the time than about the capabilities of nuclear thermal rockets.

The Dumbo / STNP engines were order of magnitude better than NERVA - way more than "half the mass" and I'm pretty sure we can do better than that these days. The quote is "Better than a conventional engine for any given amount of fuel", implying that even with balance-of-system mass issues they're still ahead of chemical rockets using virtually any fuel.

Also, I don't know whether anybody is suggesting crewed missions, or at least I'm not. But "Why bother", well, cost and efficiency and size, frankly. Starship is a bold move, but to me, it looks pretty small. I'd like them to add a zero onto the end of the mass budget. Think Gerald R. Ford class aircraft carrier going to space and back, with 5000 ton cargo capacity to LEO, or in that neighborhood.

My math on a NTR Starship: (1 ton = 1000kg throughout)

Two-stage Starship mass budget: 5000 tons, assuming max payload.

Dry mass: 180 tons

Current payload to LEO: 100 tons (my math says closer to 155t but whatever)

Even if you assume that an NTR version would be more than 5x the dry mass (quite a bit more than your estimate)

NTR mass budget (unchanged) 5000 tons

NTR dry mass: 1000 tons

Resulting payload to LEO: 800 tons

Plus, the NTR equivalent would be SSTO, straight up and back, only the tankage needing a refill, possibly for years. Isp really matters a ton and it outweighs a lot of the admittedly significant concerns you raise. Same thrust, more than 5x the dry mass, and it's still enough to 8x the cargo.

And of course this is without getting too sci-fi, no salt water Zubrin rockets or Project Orion or Project Pluto nonsense. SSTO using air as a working fluid until it gets up over ~30km is another nice concept.
Show HN: A distributed workflow runner with focus on performance and simplicity
Show HN: Typical Contents – Wirecutter for clothes
People won’t leave chrome quickly or at all, Chrome didn’t win the battle of the browsers due to having better or more extensions it won because of 3 major factors.

Better brand recognition - more people switched off IE to Chrome than from FF to chrome (hence why I’m not putting the terrible performance and reliability issues that FF used to have like crash and lose all tabs as a factor but it took a decade for FF to sort their shit together and by then it was too late).

Better integration with Google services right when a Google account became quite important.

Being the default browser for the Android eco system.

So I don’t know who would exactly leave Chrome because of extensions but I have a feeling that even you wouldn’t.
Outside of the US, every time I go through airport security I am always "randomly" searched. "Sir, this is just a random search, we do this all the time" - I must be incredibly unlucky. Strangely, when I shave I get through fine.
Microsoft Edge Accused of Sneakily Importing Firefox Data on Windows 10
This needs a live version of each board shown online. This would give you an idea of the utility. So, right now, the UK rain map should be pretty idle since it is a very sunny day, at least in the south. The tube map should be something you can watch for a few minutes to get an idea as to how it updates itself.

The Boston board has the station names etched onto the board. Clearly the London large board could have some names etched in. London has a lot of tube stations though so this could result in a lot of visual clutter. But trains do have their destinations and 'via' on the signs, e.g. 'Cockfosters via Bank'. The names of the termini stations (e.g. Paddington, Liverpool Street) as well as the end destinations (e.g. Morden, Richmond) and major intersections (e.g. Oxford Circus) could be provided, making the map a bit more inclusive and usable for those that don't have the map etched on their brain.
Don't. Follow the rules, and get them changed if you disagree with them.

Amateur radio enjoys the privilege of pretty lax regulation, largely due to the players not making any trouble. Speaking as a fellow radio amateur, we don't want our hobby ruined just because someone wants to be a troublemaker.
Some feedback from my first 5 minutes with it: I invited it to a private channel we have that really only exists for leaving tasks for other people, ran `sidequest create` in that channel, and it created a task entirely unlinked to that channel - ie: the task appears in the @sidequest user, but there's no sign of it in the channel where it was created. This leaves me wondering what the point of inviting the @sidequest user to channels is.
You can have a pandemic without fear though.
Thank you. I am purposely avoiding convo to be channeled into discussion of this or that incident - those who want to dig into the matter they can find plenty and draw their own conclusions.
So just by being redirected, you can have root access to your iPhone taken without warning? That sounds like an insane vulnerability. Anyone with a security concern should immediately drop iPhone shouldn't they? I admit the intercept process is clever, but if that's all that is needed for total security failure, the real issue is the browser/OS.
- OpenMW https://openmw.org/en/
Guess I’m the one who didn’t get the joke as well.
> In many companies (think FAANG)
> The more complicated the design, the more 'foresight', the better.

Certainly not in Amazon. Surely there can be exceptions but in general the company has a culture of simplifying stuff anywhere is possible.
I don't agree about the way you assess value, and I don't think it's so much about fashion as you pretend.

Mobility choices are lifestyle choices. Buying a bicycle means getting rid of parking issue and exercising everyday by default, without the cost of having to decide to do it. Despite road violence coming from car drivers, it's less stressful because it keeps you connected to your environment. The value of a bike compared to a car is like the value of a lower paying job that has less pressure, in a lower cost of living area, a shorter commute, and better offices and colleagues. You can't compare them easily.
Just read the creation myth in the first chapters in Silmarillion. It's basically Paradise Lost with more diacritics. What other mythologies have angels anyway? The Tolkien mythology is monotheistic and morally dualistic (good vs evil), which is fundamentally different from the pagan cultures he is otherwise inspired by.

I actually think this is key to his success: He takes a lot of cool stuff from pagan mythologies and legends, but he frames it in a simplified "good versus evil" dualism which is easier to understand for modern readers with this background.
Which restricts freedom of speech in an arbitrary, unlawful manner.

See e.g https://dejure.org/dienste/vernetzung/rechtsprechung?Gericht...
or https://www.mondaq.com/germany/social-media/735562/munich-co...
See for example

https://www.theatlantic.com/politics/archive/2015/01/the-tro...

https://edition.cnn.com/2017/03/06/asia/sikh-hate-crimes-us-...
this is kind of terrifying
> Ah yes, let's pretend you can't tell someone is from south Asia or Caucasian.

First of all, you previously included the Middle East. And yes, I would not be able to determine ethnicity with certainty given the significant variation. Would you define Jason Mantzoukas as Caucasian? https://www.youtube.com/watch?v=6JtamJmtc0g
To be fair, decent JPEG deblocking should have been a solved problem already and included in decoders, see for example:

https://github.com/victorvde/jpeg2png
Try bringing a two stoke engine onto a subway. That’s not their only appeal, but e-bikes simply work better in many urban areas.

Cargo e-bikes are vary niche, but still have real advantages over two stroke engines.
I didn't miss you point. I just very much disagree that there is no difference in competence between a rando and a journalist, and there are not just some guys on internet.

Reporting news and investigating is very complicated, so complicated that yes some people are professionals and paid to do it. This is type of job where people easily say "why they didn't say that", "why they reported it this way", "I would have done it better", truth is it's not that simple. I personally think it's a difficult job to do and try not to diminish it.