skysight-inc/HackerNews huggingface dataset:
So how does this thing work?

> A redox-flow battery, in essence a reversible fuel cell, is typically made up of a positive and negative electrolyte stored in two separate tanks. When the liquids are pumped into the battery cell stack situated between the tanks, a redox reaction occurs, and generates electricity at the battery’s electrodes.

> By comparison, the new invention has only one electrolyte, comprised of an iron salt (rather than the more commonly used vanadium) dissolved in acid. When hydrogen ions react with the iron salt (Fe2+), hydrogen gas is produced at the platinum-coated carbon cathode in the battery stack.

> “We introduce iron as a middleman, so we can separate electrolysis into two reactions,” says Wang. Doing so allows one to control where and when to reverse the reaction to produce electrical energy to supply to the grid. “The system gives you flexibility... you could do the regeneration during evening time when electricity prices are at a peak,” he says.

> Regenerating Fe2+ in the reverse reaction also allows for the continuous production of hydrogen gas, he says. “And because the hydrogen-iron cell uses about half the voltage of a traditional electrolyzer, you can generate hydrogen at a much cheaper cost if you do everything right.”

It sounds to me like there are two things going on here.

Firstly, they have a redox cell which has one electrolyte, in which iron ions move between the II and III redox states.

Secondly, they have a way to shuffle electrons between iron and hydrogen, so they can take energy from the iron in the redox cell and use it to make hydrogen.

So, over short timescales, the system just works like a redox battery. No hydrogen is produced or consumed. But if the battery gets full, or they want hydrogen for other purposes, they can produce hydrogen, and in doing so, regenerate the iron.

Is that right? If so, what are the reactions here? What is the composition of the electrolyte, and what stops the iron ions decaying to the lower-energy state? How do they use iron ions to make hydrogen from water?
On top of organizational capital, you're also losing tacit knowledge when a business dissolves.
Because not everyone thinks in search operator keywords.
Although search within apps can be even worse.
I was looking through Google Movies the other day for the film 2001 and instead it swamps the results with those from the year 2001 - one could argue that there are lots of people who are massively keen to buy films based on the year of production, but I suspect it's better to satisfy those looking for years in the title first and then after that brief interruption list the year based results, rather than the other way around.
Similarly looking for "The Book of Why" on Audible is dismal: even when it's in quotes it isn't until the 42 result that the exact match shows up, with a load of useless not-obviously connected results turning up first.
Both these failures interest me as they have a tangible financial implication (I clearly had money to spend) and yet they remain unfixed.
The mail innovation to come out of 4 billion years of natural selection are essentially just really really really good catalysists: enzymes. They've got an admirable specificity and efficiency. We dont have 4 billion years to figure out how to do it as well, but we've gotten not that terrible in just a few thousand!
There is a type of company structure similar to a limited partnership, but where the ownership was anonymous: https://en.wikipedia.org/wiki/Kommanditselskab

That was apparently misused by a relatively small companies abroad, where passing profits through this company would keep the information from the right authorities. Not really sure what happened with the case, new rulesets were applied to combat potential abuse.

Another high profile case was the "Danish Bank" (not to be confused with the national Bank of Denmark) which was involved in some huge money laundering in Estonia, potentially allowing as much as 200 billion EUR pass through it without asking too many questions.

A report from the Tax Justice Network: https://fsi.taxjustice.net/PDF/Denmark.pdf
> I guess that's yet another sign that the PC is over

I sure hope this is not the case.
Human level NLP is the halting problem, so unsurprising that AI cannot do simple expressions.
Does that even make sense? Why wouldn't you want centralized coordination of your data structures? We could go back to people emailing emailing Excels to each other is that's what you want.
World Bank Will Live Stream Agriculture Innovation Challenge on YouTube
Yeast is everywhere. I was recently reading about how to cultivate wild yeast in a jar left on your countertop for use in making sourdough bread.

What happens when some of the yeast you capture in the environment is producing psilocybin?

I saw no mention in the article of considerations to keep these genetic modifications contained within the psilocybin manufacturing process.
Precisely, as there is a better way to do it. Search for "solid-colored shirt" or "black shirt" and/or further define your search to exclude the term "stripes."
In terms of AI, the following is literally the best I have ever seen and it's not even done by a professional (meaning you can make it too):

https://aidungeon.io/
> I've never once met a person who would otherwise go hungry if they didn't get dividends, have you?

Many pension funds pay pensions by taking a dividend from investments.
I think "Probabilistic Reasoning in Intelligent Systems" is a better starting point for Pearl. Not much easier but more familiar ground if you're coming from today's ML mindset.

As an aside, once while reading through Wasserman's "All of Statistics", he somehow hypnotized me into seeing the title of Ch.16 as "Casual Inference", so anyone who knows me knows that I can't help making a dad-joke about casual inference when the topic comes up.
Not strange. It's cheaper to bust the union and fire those involved, and pay out for the ensuing lawsuits (whether just to lawyers or lawyers + settlement) than to pay higher wages and provide better benefits. Or at least, that's what they think, and I'm sure someone has done some sort of math to validate this course of action (whether or not it's correct).

And companies rarely care about their employees or anything other than profit / bonuses they get from that profit.
A relative collects Duesenbergs and he uses a fuel additive plus preservative since there is no ethanol-free gas where he lives.
+1 for Lian Li. They're an excellent case for building in. Good fan mounts, water cooling mounts, thick steel, good layout for PSU / HDD placement.
Here's a nice breakdown of the factors for that price. Taxes are around 72c of that gallon, on March 30th.

https://ww2.energy.ca.gov/almanac/transportation_data/gasoli...

I'd love to see updated numbers on this.
I think "to help workers keep their jobs" is not a good enough reason. I might be wrong but to me the main beneficiaries of companies staying open are not regular workers, but the owners / CEOs / shareholders.
Why would you really apply NLP to a search engine though?

If you go to Google's homepage and click the microphone at the end of the search input box you can search by speaking. All it does is convert to speech to text, but it implies you might be able to search in a more "natural language" way.
With oil being basically free, it seems crazy that we're still putting corn in gasoline.
These days dividends are less popular than share buybacks (in part because the former is taxed as income and the latter as deferred capital gains taxed at the time of sale).

I hope politicians weren't sufficiently stupid as to close one avenue and leave the other wide open.
I have noticed in the past few years google results have become noticeable worse for similar reasons. Google used to _surprise_ me with how good it was able to understand what I was really looking for even when I put in vague terms. I remember being shocked on several occasions when putting in half remembered sentences, lyrics, expressions from something I had heard years ago and it being the first! result. I almost never have this experience anymore. Instead it seems to almost always return the "dumb" result, i.e. the things I was not looking for, even trying to avoid using clever search terms. It's almost like it is only doing basic word matching or something now. Also, usually the first page is all blogspam SEO garbage now.
It's cheap because it's in low demand at the moment. You'd only be taxing essential workers (thanks for risking your health because we have no social safety net) and logistics, which would raise prices for the consumer.

I just don't think now is the time to raise the gas tax.
There are 30.2 million small businesses in the US, which comprise a whopping 99.9% of all United States businesses and make up for the lion's share of employment. This is very different from Europe.

By bailing out the small business owners, you have a better chance at maintaining employment or for employment to re-emerge after a crisis.

Small business ownership is also a huge source of middle class wealth here in the US. Bailing out small business is essentially bailing out 30 million owner/employers and preserving their middle class wealth.

Obviously big businesses get bailouts here as well, and I happen to agree that if they use money for buy backs, dividends, etc. they should not get stimulus money.
If there's a dialectic here, does that mean there is a synthesis state between stripes and non-stripes? Is it polka dots?
Isn't that just battered (like schnitzel)? If you buy actual fish you get just fish.
Without knowing more about your solution I can't comment on that specifically.

I do know that the mems, fiber coupling to the mems and the waveguides necessary for wide enough FOV and variable focal length are very much bespoke right now and thus costly.
> In many European countries, social safety nets exist

They only exist because they are funded by taxing economic activity. If governments could just will them into being without restriction than every country in the world could have European level social safety nets.

If economic activity declines, so does the money faucet funding the social safety nets.
Exactly. If you want shirts without stripes then just search "shirt -stripes" (https://www.google.com/search?q=shirt+-stripes)
Key question here, do all three even profess to using AI/ML in the search feature?
Cars don't care. They'll run on 3+yo gas (though I wouldn't risk it in anything that needs premium for reasons beyond the scope of this comment). It's stuff with carburetors that you have to worry about, particularly two strokes, marine 2-strokes seem even more finicky for whatever reason. Also, modern car fuel systems are well enough sealed that there's not much moisture ingress.

The whole "gas goes bad in X months" this is basically an urban legend at this point but it's continuously propped up because most white collar people's experience with gas older than a few months is trying to pull start some piece of garden power equipment that has the cheapest carburetor known to man on it, a compression ratio in the ballpark of "maybe" and barely runs on a good day and then can't start once you make the gas even mildly less volatile. Old carburetor vehicles could certainly gum up but they'll do that with premium too.

If you don't daily drive a moped, motorcycle or bicycle with one of those engine kits you'll be fine.

Source: Formerly employed in an industry where filling up your vehicle with free junk gas was one of the perks of the job.
Can anyone let me know where do I start if i'd like to try this out?

Caveat: I am using the Pentium G4560 CPU. Is that a deal-breaker?

Thx!
How to Show Your Cat How Much You Love Them
My bet is that sites are generally optimized to a keyword search and this kind NLP search engine would return subpar answers most cases.
Show HN: Push notifications when BigBasket slots are available
A problem titled 'Alert me when slots in BigBasket is open' was posted on (my platform) needgap[1].

India has the most severe lockdown for COVID-19 for obvious reasons, so the online grocery deliveries are working with minimum staff.

BigBasket, the leading online grocery delivery platform has introduced random slots for booking in several cities and the only way to book grocery through it is to check the app routinely at intervals(slots open up even after midnight).

To solve that, I have created a simple Go script which uses chromedp (A Chrome DevTools Protocol implementation in Go) to check for site message in BigBasket and send a push notification via Pushover when the 'Slot unavailable' message is not there[2].

[1] https://needgap.com/problems/112-alert-me-when-slots-in-bigbasket-is-open-india-ecommerce

[2] https://github.com/heavyinfo/bigbasket-slot-alert
Sometimes I wonder if we will ever reach the point at which the people that Amazon would never employ combined with the people who would never agree to be employed by Amazon leaves them with fewer people than they need.
Why is everything a git repo when it could have been a blog post?
Python 2.7.18, the last of 2.7.x, has been released
Three Decades of Global Land Cover Change
I've always liked the look of small PCs but I feel like they probably wouldn't be great if you also want a quiet PC.
Personally I would like to mount my computer in a server rack that's not in the same room as the rest of the setup (so just route the monitor cables, a USB hub, and an ON/OFF button through the wall). That way you can use the computer without having to hear it.

If you want some inspiration for sff PCs then I can recommend the subreddit /r/sffpc [1].

[1] https://old.reddit.com/r/sffpc/
Exactly what I was thinking. If it can't do that it just sounds like complexity for the sake of complexity.
This is how the beast gets starved..
I want to add something to this: and when a newly launched AAA game doesn't work, the community won't stop until it does.

My own personal examples: Halo MCC and Doom Eternal. They wouldn't launch out-of-the-box, but people just wouldn't stop trying. The GitHub issues for these games were enormous, full of information and people trying things. It's pretty encouraging.
I was working on a frontend issue related to CSS and shadows. There was a card element with a photograph on the left and a white container on the right with some information, and it looked like the shadow below the card was a different color below the photograph than below the rest of the card.

__________
|photo|info|
|_____|____|
[ shadow ]

After debugging the CSS and inspecting every element, I couldn't figure it out. I ended up taking a screenshot, zooming in to the pixels in GIMP, and using the color picker to see just how different they were, but it turned out the shadow was the same color! It was the same principle behind the checker shadow optical illusion (https://en.wikipedia.org/wiki/Optical_illusion#/media/File:C...), where the darker side (the photograph) made the shadow look lighter than the shadow below the lighter side.

Definitely made for an interesting writeup as I closed the issue.
I just got back from reading a blogpost [0] by another commenter (presumably also German, if you are, in fact, German) in this thread about how Americans are so steeped in euphemism that they don't notice how much they respond to what they think their conversational parter is implying and not to what the partner is actually saying. I admit that I am American and the blogpost resonates with my experience.

That being said, you've just made a very interesting sequence of comments in this subthread that, taken as a whole, can be interpreted in at least a couple of quite different ways - and the more comments you make, the more your (probably predominately American) readers are going to build up a mental model of what you might be implying.

Personally, as an American who maybe has spent too much time on the internet, my interpretation of your comments in this subthread is that they are essentially a piece of performance art. Also personally, I am enjoying the performance quite a lot. I'll make no comment about whether or not the performance is appropriate to the spirit of this website as revealed to us by dang.

But! Maybe it's good for me to practice responding to what people actually say. And I think your logic slipped a little:

https://news.ycombinator.com/item?id=22924541 (GP) said:

>Taken out of context, the quote is reasonable. [Taken in context], it... means repress and kill everyone [but whites].

https://news.ycombinator.com/item?id=22924684 (you) said:

>How do you get from this quote to the context of genociding other people?

The issue is that GP said "There is a context that the quote was made in, and that context turns the quote bad" and you non-sequitured by asking "How does one, starting from these words, derive the bad-making context?" You're right, you can't. The literal words are fine by themselves. But the words are not all there is (at least to an American audience in the current year, which the audience I'm most qualified to have an opinion on).

This is why when you tell an American "allahu ackbar" they think "suicide bomber". Or "it's time for a change" means "the boundless optimism of a young black presidential candiate". Or "planned parenthood" could mean either "women finally gaining control over their own bodies" or "state subsidy of immoral behavior" instead of, you know, literally planning whether/when one wants to have children.

Americans wouldn't tattoo 1488 on themselves if there were no additional, metatextual information that they wanted to convey to a viewer, so it seems kind of naive to interpret that kind of thing in the literal manner you've been exploring. I don't think you're suggesting they should be interpreted literally, though; I think you're lamenting that some humans have gotten to a place where they see terrible concepts in words that are intrinsically innocuous.

I think that's just a part of being human, but I'm American so maybe it's just a part of being American. I lament it also.

0: https://sneak.berlin/20191201/american-communication
I do this as well. I wonder if anyone else has made this mistake. The habit of the 3 tap has become so subconscious to me that if I have to remember another object, like tickets to a show or something I'm bringing to someone, I will then do the 3 tap and forget my phone.
... so you know... obesity isn’t usually from eating to excess because you can. It’s from eating high calorie low nutrition foods. Poor people in the US aren’t obese because they have excess it’s because it is cheapest to buy high calorie foods. Obviously I’m not talking 400lbs, that still takes effort and money, but 250lbs is easy to hit when poor.
Hunger makes people do a lot of things they don't want to
Depends on your audience, but I imagine many find the answer boxes on Google search pretty useful. Getting the population of a city without having to click any links is probably good for your perceived value. For this you need some NLP tech to extract intent from the query and match it to the right entity in their knowledge graph (in addition to something to help you build the graph in the first place).

Google have a blog post from October last year with some more complex examples of where more sophisticated NLP helps https://www.blog.google/products/search/search-language-unde...
People (justifiably) criticize the middle-eastern countries for a lot of things, but they are all aware that all the oil revenue is eventually going to dry up. Most of them have been hard at work transforming their economies for decades, not an easy thing to do when you're in the middle of a desert.
Show HN: Sursis, a Network Notebook
I've had this question in the past and I found this post helpful:

> The fundamental answer to all of this is that the profits must be shared with shareholders at some point. This is what terminates the infinite regression. If a company believes that they can retain their earned profits to further grow and generate even more profits, they will do so. However if a company continues to grow and do well, eventually they will accumulate so much cash in the bank that they can’t find good use for all of it. At this point they will have to pay it out to shareholders through a dividend or stock buyback. If they refuse to, at some point the shareholders will band together and vote for new management that will pay it out.

https://stuffexplained.wordpress.com/2013/10/13/why_buy_stoc...

So even if the company does not pay dividends currently (reinvesting it instead), there will eventually come a point at which their growth flatlines, and they will start paying out dividends. If the market is rational, it will have forecasted this flatlining and the stock price will have taken that into account.
Yeah, but it's business insider we are talking about.

A title like "Retailer give points to each of their store" (which is exactly what the article explains) does not sound nearly as scary as anything containing the words "heat mapping employees" (which the article explicitly contradicts).

You can't really expect "chief correspondent" specializing in "breaking news, analysis, and in-depth investigations on large public and private companies" to resist the temptation to drive clicks by writing the most sensationally wrong title they could find.
Because you want to sell shirts without stripes to customers who want them.
That was when people built websites to deliver content. Now people build websites to get highly ranked in Google. No matter how good google's algos are, they can't win when the underlying content is just SEO'd garbage.
I was going to write a paragraph about insights I could glean from the map, only to discover while writing that white == no data.
Interactive Critical Care Surge Response Tool
When the Robot Wars come we’ll all be wearing striped shirts as camouflage to confuse their AIs
Decentralized with a control center?
So the one you built will exclude shirts with stripes if "shirts without stripes" is typed directly into a search box? Or there are secondary filters to omit and/or only show certain patterns?
We are hiring guys, I hope it's ok to post here. We are looking for Frontend developer at the moment Mid- Senior level.
Company is stech.com if you want to check it out. Link to where you submit your application if looking for a job is https://www.stech.com/careers my email is Suze@stech.com

the role is full remote at the moment, but otherwise when this covid situation is over, it is based in an office near Liverpool street station.
One of the primary methods to join multiple learned models is a decision tree (or combination of decision trees making a decision forest), which can be simplified as a series of if statements/conditionals. So if you join a 'is it a shirt' model with a 'is it striped' model you get two sets of things, and with how big data approaches this it is something you can do quickly. As other people have pointed out the issue here is that the NLP of the actual search is not creating a negation of two sets, it is returning the intersect of sets 'is it a shirt', 'is it striped' and shrugging its shoulders and either intersecting it with 'things with the text without', or throwing up its hands entirely based on the context because it wasn't programmed to do something smarter.
The author doesn't want a plain shirt. He wants one without stripes. This includes harlequin shirts, shirts with logos, shirts with pictures, tie die shirts. All good, as long as they don't have stripes.