skysight-inc/HackerNews huggingface dataset:
Maybe I am missing something, but trolleybuses do not have tracks, they get power from overhead wires.
TLDR Version: React defines the property "isReactComponent" in its "Component" class prototype object. When you extend "Component" React can simply check "MyClass.prototype.isReactComponent" and if the result is true, it knows it's a class and not a function!
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This is kind of similar to how the USSR industrialised in the 1930s. Western nations were simply stunned at the rate of change, and while we now know it was underscored by unspeakable atrocities, it still applies that such a tightly controlled economy can be very agile and responsive to threats such as climate change.
nye and tyson are not considered "scientific atheist televangelists" by anyone who even casually researches their qualifications and temperaments. both are products of pop culture and are treated as such. both face heavy mockery in less PC social networks frequented by folk that have relatively scientific mindsets(for eg /sci/).Both make heavily egregious comments that are forgiven by their fans coz everyone makes a mistake sometimes.

as for the second part of your argument, yes HN does get some ignorant arguments but that is the price of becoming more popular - you attract people from all segments of the technically inclined population.

this is yet another "the popular thing of the day is actually bad coz human beings are stupid and do not seek out opposing viewpoints" argument thread
These TV shows are very educational about this, especially the Real Hustle, which was a documentary demonstrating how to avoid scams in real life situations. I'm sure you can find them on some streaming service as repeats.

The Real Hustle https://www.imdb.com/title/tt0791615/

Hustle https://www.imdb.com/title/tt0379632/
They are live and kicking in some countries https://en.wikipedia.org/wiki/Trolleybuses_in_Belarus
Link to project?
OpenCores: Small x86 subset core
Change the orientation of document pages using C# ASP.NET API
The Bootleg Video Vans of the Soviet Union
Wait, what is the difference between taking the time for an interview (no matter if via phone or in-person) and one for a gate-filter task?
I'm more concerned about what will happen in the gulf region if global demand doesn't go down.
Seems to have been at least somewhat popular in Australia but I have no idea to what degree.
Any particularly good books you can recommend that you came across on your Amazon binge?
Correct me if I’m wrong, but that reads to me as thoughtless eye rolling cynicism. Is there a basis to it? Does quantum computing not offer our best shot at solving currently unsolvable problems?
When I first got a windows 3 machine at work (early 90's) it took about year to stop trying to drag down from the top of the screen to show the high res display.

And I also used to be unofficial UK third line amiga support for PRESTEL and telecom gold - if they had some weirdness the normal help desk couldn't replicate
I'm more concerned about what will happen in the gulf region if global demand doesn't go down. Temperature-wise, I mean.
> Why don't we bring trolleybuses back?

After decades of contraction, Lyon[0] re-started expanding its trolleybus network and converting ICE lines (sometimes back) to trolley a few years back. In the near future they're intending converting half a dozen ICE lines using IMC trolleys for more flexibility (able to run on batteries between overhead transmission segments, and to opportunistically recharge at bus stops).

[0] the premier French city for trolleybuses and one of only 3 cities which still has a network
I'm glad you found your calling :)

Now I'm really intrigued by what it takes to get "freelance interim CTO" jobs - and whether this is with tiny one-person shops (where the CTO is also "the developer"), middle-size businesses (10-50), or enterprises that lost an executive to poaching or illness and need someone to plug the gap until their headhunter's got a new one lined up.
Good opportunity to post this:

http://hackage.haskell.org/package/lens-4.17/docs/Control-Le...

Which I still maintain is the most hilarious API I have ever seen in my life.
Complex networks study ranks the most influential films of all time
Streaming live from a GoPro 7 action camera or a DJI Osmo gimbal
Do the hybrid ones have any clever way to re-connect?

All the busses I've seen have this system where the driver has to walk to the back and pull on some rubber bands to put the tentacles back on the wires. If this could be automated, then perhaps you could omit wires at big junctions where it's most messy, needs lots of points, etc. Building & maintaining wires with 90% coverage might cost half as much as 100% coverage, I would guess.
Litigation
I’m not sure your two links have any substance to them.

A few history buffs couldn’t find anything to support it....

I’d be interested to know how they did test bridges etc.
>>The first involved sending foreign SIM cards to dissidents back home so they could tweet without being traced.

No doubt in my mind now (not that I really doubted it) that MBS and SA state is behind his death. Such talk and actions will get you killed, or life ruined in maybe half of the world. They don't like anyone messing with their power.

Even if more "democratic" countries the party in power will ruin your life by shutting down your business, harassing everyone you care about, maybe even send thugs to rough you up etc etc. The world is not nice, the "Western" one is a paradise compared to the rest
Oh I did not know you were an Amiga user back in the days :)
Is that income uniquely difficult to explain?
Also recent trolley generations can be equipped with batteries which get charged while connected to the overhead transmission network (or opportunistically at bus stops), allowing some operations on non-wired segments.
the danger is when greed takes over e.g. as can be seen with social networks - an useful tool being milked in such a way that makes societies crack at their foundations. custom design of proteins could be used to treat and cure most diseases, but curing doesn't earn as much money and treating.
I have another producthunt-related HN discussion [0] pending right now, about the question whether one should give almost full access to their Twitter account (permission to change profile, ability to post), just to be able to give an upvote to one of the Product Hunt submissions.

[0] https://news.ycombinator.com/item?id=18587574
4 Problems with the New Climate Change Report
Swift Program Distribution with Homebrew
Yeah, C: was the virtual volume where commands lived. L: had handlers, S: startup scripts and T: temporary space (think /tmp). There were also longer assignments, e.g. DEVS:, FONTS: and LIBS:.
Dwarf Fortress players have known this for over a decade
As a layman gamer who has only used steam as a consumer - This comment ignores the ground realities of Steam having a seemingly endless amount of trash. i logged on and wanted to play a game with wallrunning and a cyberpunk aesthetic and i only found ONE that was worth playing out of the seemingly thousands of options.

Game developers on steam seem to release what they want to not what the audience wants in the vast majority of cases. Couple that with amateurish quality and it's actually easy to be seen if you choose to cater to the non oversaturated categories imo.
This is a lovely sketch of someone whose path had been artist -> linguist -> mathematician <-> physicist, and is apparently good at all of them. Learning maths because he went to the wrong section of the library, etc.

Also, his demonstrations on youtube are great.
How about a Parallella, it has HDMI output and USB host for keyboard and mouse.
There seems to be a trend of indulging in oppressive fantasy.

Maybe it balances out any irrational exuberance about the arrival of new technological frontiers. Or maybe some folks are just grumpy.
I'd say they're truer (but I see what you mean).
There is a mine ventilation shaft not far from where I live:

https://www.geograph.org.uk/photo/765213

It is very noticeable on cold days that there is a plume of warm moist air coming out of the old workings. Indeed, when I first saw it I thought there must be a fire (although I soon realised what it actually was).
Yeah, maybe when you're 16~18, then you grow up and understand just how hard it is to make a difference even in your own social circle, let alone the world. I guess people should stop pretending all the great man and woman we hear about today did their thing alone. They all needed someone else, even if just to make their ideas popular or to give them financial means.
They never went away in US cities like SF and Boston, where they are referred to as “Trackless Trolley”.
If you search YouTube for “trolleybus automatic” there are a couple of videos. Looks like there are special locations where the catenary has a little plastic guide on it. It also looks quite slow.
My last project relied very heavily on zippers. I generally find that even something like Specter wouldn't be helpful here because quite often the branching is highly conditional on data (e.g. find all Foos and give each one a reference to the next Bar in the sequence etc). Of course it can quickly become complicated to rewind when making a complicated excursion in a zipper - I'd love to hear what the state of the art in this stuff was (presumably from a Haskeller).
That's only at a later stage when you get an interview - with a company that looks good.

Coding tests are just an early stage filter for experienced people - so those companies get dropped early on.
Is an important part of product design not to get into the mindset of the customer? Seems that they did that just splendidly here.

This "don't be evil" thing keeps nagging though. They might want to be a bit more public about its deprecation: https://gizmodo.com/google-removes-nearly-all-mentions-of-do...
What's the gimmick? It's a simulator. I'm struggling to see what the point you're making is. It may well be incomplete but it is what it is, a simulator.

So what exactly is your point?
All this is true, but this is right outside Valemount and near Jasper National Park and in an area where there is a whole bunch of hiking, backcountry nordic and alpine heli-skiing and snowmobile tourism. It's not really the most remote part of B.C. Highway 16 isn't even that far away.
Liquid sunshine butt.
>We're all looking at Tesla to bring electric cars to the masses. Should we be looking at China instead?

Right now, Tesla consumes more than 60% of the word EV batteries and their shares is still increasing. I'm sure most of the world's EVs will be Chinese but the most high-end ones will probably be Teslas (made in Shanghai if need be). One can draw a parallel with the smartphones market :)
> Selfies are not art
... clearly you've never seen my selfies.
> Just see the "Yellow Vests" riots in France because of the tax raise on fuel.

Problem with the French protests is that the fuel tax raise didn't take care of poor-ish people.

Most "eco" politics doesn't care about these people either - no matter the country - and that's the reason why Trump and other right-wingers can hate so successfully against anything environmentally-friendly.
Shouldn't we be able to find even shorter ones and do some interesting bounds calculation on it, given the recent progress on supercycles?
Aka, Polymer Science with a different name.
That's longer than some TLA's with DV Clearance (allegedly) :-)
Introduction to your broad interests for a smart/techie-but-not-yet-knowledgeable audience. Like, the book you would have read at 14-22 and been interested/inspired by. Your problem solving/reasoning approach.
It isn't even clear whether the class of problems quantum computers can efficiently solve is a strict superset of the class of problems classical computers can efficiently solve, before you even consider whether it's clear that we can build quantum computers with any reasonable number of logical qbits: https://en.wikipedia.org/wiki/Quantum_supremacy
Ha. Great example of the mush that my brain has been reduced to.

Point #1.
We still have them in Czechia. I doubt they would go away now.
It will still be a problem, since the energy has to come from somewhere. Just as our energy use is a problem.
This looks very realistic but it's really just a fake, not a simulator.

I had an idea some time ago of implementing the relevant Amiga ROM libraries (intuition, graphics etc.) so that the calls could be transferred to browser DOM. The CPU would be a normal m68k emulation. Original application could be started and the windows they open would actually be DOM elements.

My first stage of this implementation was to transfer the libraries as emulations for Win32 Windows. In this implementation intuition-windows are Windows windows. :) To be clear, the idea is to emulate the API, not the HW. I guess it's like WINE but for Amiga.

I have some early POC prototypes of this using emscripten. So in principle it can be run in a browser. Maybe some day...

It's kind of a crazy idea but kinda cool I think. :)
It looks like some details might be published in the CASP13 conference.

http://www.predictioncenter.org/casp13/index.cgi

For such a breakthrough, there is a good chance they are writing another article for Nature or Science, even aiming for another cover feature.
Ahh, I'd only remembered libs, devs, s and fonts. Which don't work in this sim btw.
Is it possible to use these functions on their own like 'map-values' without the traversal DSL?
The thing is though, BeOS in 1999-2000 was booting in 5-10 seconds on (in my case) a 300MHz Pentium II with 64MB of RAM and a PATA/IDE spinning disk. Even a stripped down installation of Windows 98 took several times longer on the same machine. I lived in BeOS for over a year and a half on that machine, only booting Windows for a few games. It was pure heaven.
Reads like well written git commit messages.
How did you reach this conclusion? The schematic in the article only shows equipment needed for growing, and the £30,000 may be referring to just that.

The article makes no mention of the troubles and dangers the original parent suggested.
Building a Language and Compiler for Machine Learning
>Where are you getting the hydrogen

Fossil fuels (nat gas, more specifically). Betting on electrolysis to produce hydrogen economically from renewable sources is as fanciful as betting on batteries to be made from renewable materials.
Indeed the vast, vast majority of taxis throughout the world are fairly standard large sedans and hatchbacks with either aftermarket or manufacturer-provided modifications.

The UK (and especially London and its famous purpose built "black cabs") is probably the biggest exception (the models are exported and can be found outside the UK, but I doubt that would be the case if TfL didn't have such stringent license regulations that simple conversions are not an option).
They're functionally different tools and knowing when to use each is important. I actually studied theoretical CS so of course I think complexity analysis is important. Your completely tangential tirade is noted though (Y)
So they're defying the laws of physics, now? /s

https://electrek.co/2018/02/21/tesla-semi-defies-laws-physic...
New science is always scary, and the better it works the scarier it is.
The source for the article's "Blockchain study finds 0.00% success rate" headline is "We documented 43 blockchain use-cases through internet searches ... we found no documentation or evidence of the results blockchain was purported to have achieved"[0]. That isn't a huge sample size, and "internet searches" may have skewed the results towards the more dubious projects spending large amounts on SEO.

But never-the-less I'd echo the interest in reading details of a successfully implemented use-case for public blockchain technology, beyond cryptocurrencies. Based on some of the comments here hinting that there might be some, and assuming they do indeed exist, I suspect that they are not solutions that could be achieved only with blockchain technology (like cryptocurrencies), or even solutions that are significantly better (in terms of cost, effort, time to market or some other metric) with blockchain technology, but simply solutions where blockchain has been made to work (i.e. other approaches could have been too and some of those may have been as good if not better).

[0] http://merltech.org/blockchain-for-international-development...
Depending on which city you live in, catching public transportation can be pretty bizarre.
Yes, where the hybrid buses connect to the wires (usually at certain bus stops), the wires have sort of "tentacle catchers" on them, shaped as upside-down Vs.

The driver just has to stop on the usual spot, press a button, and while passengers are boarding and exiting, the "tentacles" unfurl, and are guided by these "catchers" towards wires. The driver just watches for a light to go on on his dashboard.

It works pretty well - in many years, I have only seen once that the tentacles did not end up where they should, and the driver had to get out and manually correct it.
Not necessarily. The CASP13 meeting where the results of the CASP competition are released is also taking place just now (Dec 1-4).
Possibly, but without the Western subtext of being too poor
Nice collection! Genuine question. What do you do with all these Amigas? Do you use them for anything productive, are any of them your "daily driver"? Or do you just fire them up from time to time for nostalgic reasons, or something else?
Parameter expansion in Bash
NULL: The worst mistake of computer science? (2015)
Great question and so few people ask it. Commenter also made the good point the dream can change.

Slightly different wording but "What do you want your life to look like?" is worth asking too! :)
>Hydrogen may well 'win' but I don't think its an open and shut case.

How? My understanding is that hydrogen is either produced from fossil fuels (aka non-renewable) or from electrolysis but the latter won't be economical for many decades AFAIK.

Worst, all things considered, hydrogen cars are still far less efficient that battery EV: https://insideevs.com/efficiency-compared-battery-electric-7...
Tell that to my AMD card, which no longer has the same OpenGL support level as before they decided to reboot the Radeon drivers.

https://www.omgubuntu.co.uk/2016/03/ubuntu-drops-amd-catalys...

Sure, maybe I can take some weekends off to port the missing features to new kernels....
>I would be interested in the motivation for that

The article you link to actually explains that quite well. Basically there are three motivations for hooks:

1. Keep code that belongs to one functionality in one place. For example setup and teardown would be in the same hook, but when writing a class they are scattered among the many things happening in the event methods in the class

2. Allow new ways to compose functionality. You can use the same hook in different functions. You could achieve the same effect before, but this makes it more convinient

3. Produce code that works better with Prepack [1], to make ahead-of-time compiled react runtimes more efficient. It might be some time until this becomes a rolled out advertised feature, but hooks are a good step on the way there

1: https://prepack.io/
For some reasons, I found that Firefox's results for WASM are always better after a first run -- i.e. clicking "Lookup" again without reloading the page. I don't know what is the explanation of this.
Works for me when in landscape mode.
I doubt it, you probably give up at least some of your copyright to Twitter, based on their ToS.
Pointers in C are an incredibly simple concept. So simple it might take you years to master them.
We never got rid of them in Moldova! Trolley lines must still be running in most post soviet countries.
Hi, do you have an email or something I could contact to discuss your living situation and the process undertook a little better?
I would like to do something similar but would like some more information on it.
> From that perspective, there will be a strong need for various rare earth elements. Leading to an insane amount of pollution. Are there any breakthroughs in rare earth extraction & treatment process?

What rare earth elements are you talking about, exactly? I keep hearing about the scarcity of such "rare" elements, but except lithium (which isn't that rare, it's just we haven't invested in the infrastructure), I'm not aware of the lack of any other materials needed for EV cells.
> In that respect, it is more like gold, in that its value is driven to some extent by its desirability and potential uses, but mostly by its cost of mining

This is not how prices work: https://en.wikipedia.org/wiki/Labor_theory_of_value

What matters is how much somebody will pay for an asset (supply and demand) not how much it cost to produce that asset to begin with.
> and the flame retardants and other poisons

What did they do with the flame retardants? Spray parts of the mine with them?
Maybe you want some kind of histomorphism? (Perhaps even a zygohistomorphism if you're alternating between Foos and Bars)
Show HN: Learn Programming by Programming Graphics
Their methods don't sound particularly groundbreaking, the achievement seems to be in the implementation. I hope people don't jump to the conclusion that AI can do science because there isn't actually any experimentation here, just a statistical analysis of a few key amino acid properties.

I hope that they will be able to abstract some formulas or rules about protein folding from the mess of statistics. I imagine that having a rulebook would be much more efficient than using AI, because protein folding isn't so much a game of chance as it is an extremely convoluted puzzle.
We can have cheap oil and still run out of it.

That's what happens when you replace all ICE with EV until you don't have much oil to extract economically.

"The Stone Age didn’t end for lack of stone, and the oil age will end long before the world runs out of oil." -- Sheikh Zaki Yamani
Wafflebot: Cloud Connected Artificially Intelligent Waffles by Jonan Scheffler
It would be detected and diagnosed as faulty hardware --- which it is. If it keeps occurring after the RAM is replaced, then perhaps it could be.

The problem with characterising it as an "attack" is that it leads to the notion that certain access patterns are "bad", and that's not a slippery slope we should be heading down...
Well the gimmick is that it looks like an emulator/simulator but isn't.

The OP merely pointed out where it fails and shows the cracks.
The public is also afraid of nuclear technology because of nuclear weapons used to destroy the cities Hiroshima and Nagasaki with a single bomb each time.
Or you need to be able to produce appropriately parameterized transformations on user-defined types without compromising safety, such as typeclass derivation?
Specter is a fantastic solution to a problem you should aim to avoid.
The key argument seems to be:

> Third, the futures markets have changed the game, enabling miners to estimate their mining losses and profits at the outset — if you can buy in a futures market at a price below my mining costs, why mine for a sure loss?
Ah, didn't know Amazon would buy things too.
Early DDR3 is unaffected too.
As one can see in two other top-level comments in this thread, the choice of an all-caps DSL is off-putting.

It would be more idiomatic to have a hiccup-like API, where data is passed - not code, not syntax. And the keywords should be namespaced, so meaning is self-documented (and one gets superior IDE support).
Simply because electric buses are the superior technology right now.

Metro bus services is actually an ideal application for electric vehicles: The needed range is short, charging facilities can be in one place (depot), stop-start driving suits the propulsion system, and low noise and no emissions are a bonus in the highly populated areas.