skysight-inc/HackerNews huggingface dataset:
The fun part of this article for me is the bit relating such a chariot built with a differential gear arrangement to the differential geometry of the surface upon which it travels:

If the south-pointing chariot were built perfectly accurately, using a differential gear, and if it travelled on an Earth that was perfectly smooth, it would have interesting properties. It would be a mechanical compass that transports a direction, given by the pointer, along the path it travels. Mathematically the device performs parallel transport along the path it travels.

The chariot can be used to detect straight lines or geodesics. A path on a surface the chariot travels along is a geodesic if and only if the pointer does not rotate with respect to the base of the chariot.

Because of the curvature of the Earth's surface (due to it being curved around as a globe), the chariot would generally not continue to point due south as it moves. For example, if the chariot moves along a geodesic (as approximated by any great circle) the pointer should instead stay at a fixed angle to the path. Also, if two chariots travel by different routes between the same starting and finishing points, their pointers, which were aimed in the same direction at the start, usually do not point in the same direction at the finish. Likewise, if a chariot goes around a closed loop, starting and finishing at the same point on the Earth's surface, its pointer generally does not aim in the same direction at the finish as it did at the start. The difference is the holonomy of the path, and is proportional to the enclosed area. If the journeys are short compared with the radius of the Earth, these discrepancies are small and may have no practical importance. Nevertheless, they show that this type of chariot, based on differential gears, would be an imperfect compass even if constructed exactly and used in ideal conditions.
It might be because the service sends both spam emails and legitimate emails. Many (maybe even most) sites do this. If this person is getting a thousand emails over the course of a few years, how on Earth are all of those legitimate, especially when they've only replied to a handful of them, implying the majority of emails can oe safely ignored.
Yes individuals slow down, but it prevents the "traffic jam waves" you see with humans. Essentially each individual ant is going slightly slower so that the average throughput stays the same.

You know how in traffic jams everyone is breaking, then speeding up - just to slam their breaks again? Ants prevent the breaks part by moving slower in the first place, which improves the traffic flow.
I think you have not understood what RxDB is.
It is a client side database. It works also when the client is offline. It does not need a stable internet connection over a websocket.

Your example is similar to RethinkDB and others. A websocket streaming json.
Came to say this. I always want to hear the maintenance story on wave power systems but the never seem to release it as well.
I use c++ rather than rust because as much as I would love to use the best language its just not so well supported on mobile compared to c/c++. I'm not sure how well flutter ffi does using rust compared to more mainstream approaches its possible that flutter ffi is more friendly to rust than jni/kotlin.
life is good when 99% of the population are.. slaves :)
As a Jew who goes to a Hassidic minyan, I can assure you that none of us are stuck in a "heyday from the past."
What would happen if this question was reformalated as "If there was another civilization, would they have invented lambda calculus?"

As for the question of "is mathmatics discovered or invented", if two or more people can discover the same branch of mathmatics, wouldn't that mean that it is a universal truth that could even be discovered by aliens?
Your underlying point seems to be that the world would be better if we all spoke one language.

I disagree, and to my mind programming is no different than linguistics in this regard.
Downconverting voltages is surprisingly easy - a single bank of MOSFETS and an inductor is all you need. A 2MW convertor made of [1] comes out to less than 100 grams (excluding cooling, but that's fairly small at ~100 watts).

There are also a lot of reasons to increase voltages in EV battery systems. The current ~400V systems need thick heavy internal wiring, and for all electric (ie. no mechanical) braking and ultra fast charging, they are insufficient.

[1]: http://www.ti.com/lit/ds/symlink/csd19537q3.pdf
>No, why?

What does "opposite" mean in your comment then, exactly?
Do not know about use cases other than the creator learned a few things.

I am interested to know what are the pros and cons of creating a language syntax in Unicode?
> Checking to see if something scrolls is way easier than looking at a design, calculating in your head if the margins look equidistant from one another thus deducing that it must be the bottom of the screen.

This is the typical narrow minded view that these app designers (not you) have. There are other uses for the scroll bar. For instance, I used to be able to tell how long it would take to read an article by looking at the scroll bar. Now they are gone and to compensate every other article now as an indication of reading time. Which is of course a worse solution, because people's reading speeds differ and it also clutters screen estate, even is a more annoying way.

The well known xkcd[0] about breaking workflows does not only apply to features, but also to UI. Few designers seem to acknowledge that.

[0]: https://xkcd.com/1172/
The 50s are quite often described as the time that America had achieved the 'American Dream'. And during that time thousands of people were imprisoned and/or lost their jobs due to Kafkaesque trails performed by the House Un-American Activities Committee.
Electric car batteries are large. It is hard to remove them without also taking apart a big part of the car at the same time
What I personally like about RxDB is that it also works completely offline. However, I don't really understand encryption: As far as I understood, it encrypts on the client side with the db passwort which is sent to the server.

Another issue is Authorization and Authentication, I could not find a good solution for me for CouchDB. Couchbase seems to have better solutions for this but the premium plan seems really expensive and as far as I understood you need a "server" and a "sync server" which don't have low system requirements, at least for me.
As a motorcyclist I help by zipping around, lane splitting at safe speeds, and generally getting the hell outta there. It’s hard job, but someone’s gotta be the free radical.

Before folks complain: I only lane split up to 30mph and at speed differentials no more than 5. Those bikers you see zooming past and scaring the shit out of you are idiots.
This is the opposite of the American dream. Immigrants fled to the US for it's unprecedented social mobility and opportunity. Things being nice for the upper echelons of society has little to do with it.
Yes, I do, because of hateful comments such as yours towards cars.
This point is often overstated, so as to almost make it seem like shameless propaganda outlets like RT are equivalent to an actual journalism outfit with standards. Though I'm sure that's not how you meant it.
This is great that people are against this technology but facial recognition will probably still be done through social media which a lot of these attendees will stream the entire time.
Guide to File Formats for Machine Learning: Columnar, Training, Inferencing
It's a paywalled article and the link don't even lead there, instead on the landing page.
Slither.io uses ads on the web and mobile versions, with in-app purchases on the mobile versions to play without ads.

The games generally have short play loops where ads are shown every time you die, so the number of impressions per session can be fairly high. The game cycle is pretty addictive and simple to pick up, but has a little depth to it.

Slither.io is incredibly successful for a web game ($100k/day[1] has been frequently quoted in the press, but I don't know the source of that and haven't seen more recent stats).

There is definitely money in web games, but it's often down to luck like any game promotion. Slither.io got huge traffic from vloggers like PewDiePie playing the game multiple times[2][3]. You also need quite high unique visitor counts before you can use certain ad networks. (The last mobile web game ad service I looked at was asking for around a million impressions a month before you could sign up.)

[1] https://en.wikipedia.org/wiki/Slither.io#Popularity

[2] https://www.youtube.com/watch?v=xpDnU7xhrYo

[3] https://www.youtube.com/watch?v=IZR6wwF8kNQ
Agriculture and farming are killing us.

We produce more food that we use, and the food we consume is so processed it is killing us.

I am not optimistic about man's will to change.
I also really loved the throwaway about ants not caring about collision.

I can "solve" a lot of traffic problems too, if nobody involved is worried about collisions.
Sure, they can build a MOSFET. But it will be pretty bad, you need to have a theory of operations before you can make reliable, powerful and small device we have today.

In fact, a field effect transistor (the FET part of MOSFET) was discovered in 1925 and 1934, but nothing happened with it until the theory was there, and someone (Shockley) spent years refining the theory with experiments.
The simplest solution would be to group the Copy and Save buttons into the group thingy that's been common on iOS since forever. So that the Copy's bottom corners wouldn't be rounded.
You can enter it from volume control as well as control panel
Don't speed up faster than the person in front of you, or you might end up having to touch the brakes and create a new traffic wave that propagates backward again.
Out of this context, I would assume that "before" is being used as a location instead of a temporal reference. I.e. "this" referring to some kind of object; "the food was laid before us".

As a temporal reference, it's definitely valid, but it bears a somewhat highfalutin connotation. It sounds like someone who is trying to wax poetic.

Not that I would fault a non-native speaker for using it; it's a very nuanced and probably subjective interpretation.
UX has been trying to remove scroll bars for ages. They are ugly as fuck but they are also incredibly useful UI feedback.

I think UX is missing the grander design challenge of making scrollbars that are both useful _and_ beautiful.
Python Interface to Boilerpipe Library
Why would you store it at sea instead of storing it just onshore?
What slowdown? China's riding to the rescue of luxury brands
Judging by your username I don't expect you to share the domain name here, but if you need a second opinion, send me a PM and I'll analyse the domain for you.

There is usually some misconfiguration somewhere that goes overlooked. Happens to the best of us :-)
Uncertain about whether such programming languages will be worthy enough, I think that DSLs in localized languages will have better use cases.
At the end of the day, it's a lot less likely to work if you write a giant if condition. So yes, the customer won't care why it works or doesn't - but quality code has impacts they can feel.
I think that my generation - with teen years in late 80s to early 00s got spoiled on PC repair ability. And it shaped us about what can we expect. Same with buy computing device, install os of your choosing. The computers were just integrated enough so sizable modules were discreet, but they were running on well defined slots, the crypto was not developed enough to drm components, there were competing players in the market for different parts and repair was 99% of the time just replacing the defective part.

I doubt that many people re-soldered defective chip on a ram module.

The only way right now to ensure repairability is to legalize how phones should be assembled and basic architecture. The same way eu did with the charging port - although they didn't went after apple for some reason.

On the other hand moving to system on a chip makes sense the way semiconductor have developed.
Google AI Targets Video Understanding with Speedy ‘TinyVideoNet’
>Consider, for instance, if English didn't have any imperative form, and instead everything were a request. Would declarative languages like Prolog have been the default?

You realize that this is the foundation of classic OOP, right?

http://lists.squeakfoundation.org/pipermail/squeak-dev/1998-...

Alan Kay:
"The big idea is "messaging" -- that is what the kernal of Smalltalk/Squeak
is all about (and it's something that was never quite completed in our
Xerox PARC phase). The Japanese have a small word -- ma -- for "that which
is in between" -- perhaps the nearest English equivalent is "interstitial".
The key in making great and growable systems is much more to design how its
modules communicate rather than what their internal properties and
behaviors should be."
Wait, does one even have throw it? I though it was done before release.
Most people have their own domains and don't want to make softwares. But their jobs depend on softwares sometimes. When the software developers don't understand the domain, it's reasonable to provide a DSL for users to customize by themselves.
If the programming language is as natural as the human language, DSL is just the regular language.

After all, language is for the precise and concise communication, human to human or human to machine.
if anybody could answer questions like that definitely, it would be a great advance. There is fairly strong evidence that olfaction evolution occurs by gene duplication followed by selection.
Sure! When I'm hanging out with Hasidim.
>and I'm still confused why we have discrete labels for things that, according to many of the same people using the most labels, are a completely fluid spectrum.

Visible light is a spectrum, yet we still use labels for distinct colors, despite "color" being arbitrary (a "social construct".) Labels can still be useful for communicating concepts and establishing a common ground, even if they're imprecise, or if different cultures don't even agree on the difference between "blue" and "green."

>Do a Ctrl+F of the linked article for "Gender" and "Sex" and then tell me that the research isn't also confused because everyone is confused all of the time, especially people who are "confused".

Everyone isn't confused all the time. People do disagree, though, and society is still working out just what gender means in the modern day.
TLDR - your going to be fine.

I lived thru it, I did OK, a few of my friends left the industry some struggled most where ok if they had real software chops. The people that really took the hit where network / sys-admins / corp PC repair-support they where gutted as there was a glut of MCSE/A+/whatever get a cert in 4 weeks make 100k.

That being said, this time it is structurally different, in that period, we where trying to eat the world with software today software has eaten the world. Development has always been and always will be an understaffed profession as it competes for the top half of the intellect spectrum along with Doctors, Lawyers, Engineers etc.

It's easy to assume that you have to be at least smarter than half the population to write software. From there you have the slackers that take themselves out of the pool e.g guy could be Einstein but he would rather smoke pot and work at 7-11. Might not be a significant portion of the population but it takes a bite.

Then the person actually has to want, desire and be interested in being a developer over some other intellect based career. Then a portion of us just burn out and leave.

Anyways there are a lot of factors that lead to a serious shortage in available developers and as best as I can reason it is systemic and incurable until AI gets to the point where it can turn a persons thoughts into software.

I would armchair guess that the pool of potential good developers worldwide is 10% of the population. Those that actually pursue it and stay with it is certainly far less.

Tangential, but that is what I love about these younger companies and their age discrimination and asinine interview processes. They lack the experience to know that their perceived cool factor actually holds no currency and the real currency is in attracting and retaining good development talent. They build so many self defeating filters to them accomplishing that goal.
They’ve already got wind turbines and offshore oil rigs. The compressed air as stored energy under the sea idea uses Kevlar bladders anchored to the sea floor with a hose or pipe going to the surface. It’s not really that far fetched.
I’m not sure this varies by gender
I used to use that about 5-6 years ago, you have to be very delicate with it because it can look extremely cheap, but if you make it too subtle it's impossible to see.

What's worse is that if there's enough of a bottom boundary to the last visible bit of content in the viewport, it doesn't look like there's anything below it at all, which puts you in the same position.
Travis CI has been acquired recently and the new company gutted their dev team. I don't think it's a good idea to use it.
> The new iPhone 11 costs between $699 and $1,349.

Nit: iPhone 11 tops out at $849. iPhone 11 Pro goes up to $1349.
I'd love to share again a side project of mine which seems relevant.

https://journali.sm

It's like a news feed, just for news.
Metaphysics is more philosophy than physics
This is all wrong!

If there is anything to discuss about Apple products: it´s the brutal and oppressive work system they established in china, their support of surveillance dictatorships around the world, their destructive forced obsolescence and the impudent refusal to contribute to societies by paying taxes like every citizen does. It is an evil, cynical gang of criminals that are actively destroying the future of our planet and our freedoms and you are talking about GUI quirks? STOP buying it!

Stop following that stupid idea of closed source operating systems! Thanks to the visionary veterans of the free software movement nowadays we have alternatives - we just need to use them!

Yes, of course fascist corporate market oppressors make it hard to be free and easy to obey.

Yes, of course there still might be some edge cases and quirks and things must get ironed out. But freedom future is what we get, something that is worth all the trouble!

Especially here on HN I feel that vicarious embarrassment when "Hackers" proudly brag about their OSX and IOS problems. "ICloud" - how can a thinking, self-respecting human even still use that surveillance tools?

We are on the edge of losing all of the freedoms our fathers fought for just because we are too lazy to solve the minimal last mile of problems on a very long marathon to better usability of open source software everywhere - this is historic debt we are taking on us just because of "easy"!

Get the F out of your comfort zone and support free software.

Yes, there will be lots of jobs, many independent developers and system consultants and small support shops with open systems, it will be a much better economy with free software - closed software actually produces bad systems because milking the consumer becomes a higher priority than building good software. The evidence is clearly visible nowadays. Windows, Adobe, Apple, etc. - all systems that are so bad and full of problems because the idea of closed source is wrong and leads to bad software.

Also the childish inability to recognize that free software is an inevitable requirement for a free society has already caused too many problems, we finally must take the next step and make open systems even better everywhere.

Be part of the solution and stop using software that puts users in a virtual prison, let us make free software mainstream everywhere!

Free your gadgets and your brain will follow! Stop buying anti-freedom!
Prior to GMail, we used to check our "Junk" folder occasionally in whatever email service we used.

When GMail arrived with its nice spam classification, it was great. Worked well, better than any competitors out there. This gradually conditioned us to ignore the "Spam" directory completely. Now things have moved to the opposite extreme. It is quite difficult to host independent email servers and send emails from it without GMail classifying it as spam. The high false-positive rate has become the norm. Instead of GMail trying to reduce the false-positive rate, it has now become the responsibility of those hosting email servers to jump through the hoops to ensure that their emails are not classified as spam.

Makes one think: If we knew what we know today about spam and abuse of Internet services, would SMTP have been designed the way it is designed today? What fundamental design change could have made it immune to spam? Perhaps a pull-based design instead of push-based? Perhaps something even cleverer?
Patio11's Word Count
What would be nice is a useful mail ML filter which would scan mail flagged spam to trigger a "are you sure this is spam, do you want to delete instead" question.
I am not so sure it works that way. Sometimes you need evolutionary jump. Like latent/subconscious demand is there but people have no idea they want something. Or the demand is there, but no big player serves it.
Here at the End of All Things (2017)
Not when your head does that calculation automatically based upon the pattern recognition that it excels at.
> I can’t use plastic utensils in California

It’s not hard to?
Interesting thing: Airline pilots use imperial units instead of metric. They're an odd outlier where the argument used for metric works for imperial. Airlines in all but a few countries use it.

https://aviation.stackexchange.com/questions/2566/what-is-th...
I think Hong Kong isn't so incensed about kidnappings and organ harvest, which happen less frequently, since it's a little impractical for those things to be constantly happening out of sheer amusement.

I mean transplants aren't the greatest option for anyone involved, and coerced confessions are a decidedly ineffective way to deal with crime. So these aren't end game goals that even an evil government aspires to. Better, to not be so sick that transplants would be needed. Better to actually solve crimes, if possible.

A truly evil government would just have the transplant recipient die on the operating table, and never intend to cure them. And even if it's a ranking party member, are they honestly worth the state secrecy it takes to organize and hide a transplant, when they're better off dead? So how many really get prisoner organs?

Meanwhile, torture confessions are another boogey man that trends with actual crime. Lazy policing isn't going to engage in the practice at a rate higher than unsolvable crime, and the incidence of crime and punishment still can't jump the rails of readily observable norms, which keeps torture confessions limited and in check to some extent.

Hong Kong has good reason to resist Chinese rule, but it's the every day misery that universally affects all people, which brings out the fight.

Two child policies, rationing and income limits basically lock people into permanent life long cages, which will never be escaped. Playing video games for internet celebrity status is a fantasy that never lives again.

The protest isn't about secret surgery and botched police practice. It's about extinguished hope by default. About already getting less, and even that gets worse, with guarantees that nothing gets better ever again.
This title is very misleading and link pay-walled. sigh

https://www.msn.com/en-us/news/technology/facebook-launches-...

FB also does Buzzfeed which is a very left leaning/liberal news org. What's your point OP?
Yeah no, thanks.

Sure, everything is nice for many people if you don't dare speak against the authority. Tomorrow you're on the wrong side of the fence. Good luck coming back.

https://www.washingtonpost.com/world/asia_pacific/chinese-ap...

https://www.chinalawblog.com/2019/09/chinas-new-cybersecurit...