skysight-inc/HackerNews huggingface dataset:
This could indeed be a big deal. "Coked" coal, or metalurgical coal, accounts for 15% of current (or at least recent-years, the numbers are shifting rapidly as electric generation offloads) global coal use. It's a use that would otherwise be hard to substitute for although there are options.

Previously, the main alternative has been to re-use recycled steel, in electric arc furnaces (hit up https://invido.us for some pretty amazing videos of things going well and/or poorly) which 1) use potentially clean electricity sources and 2) eliminate all coke use. Altneratives to the blast furnace refinement of new steel from iron ore would be a development unprecedented since the introduction of Bessemer process furnaces in the 1860s.

Vaclav Smil writes on many energy and resource topics, and covers steel from both perspectives in his Energy and Civilization and Making the Modern World books. I'd strongly recommend both.

What I'm finding odd with the article is that Bloomberg appear to be principally citing themselves as sources. I'm reviewing literature and there appears to be scientific research dating at least to the 1970s on this topic (that'a a very quick first read by titles).

I'll add possibly relevant links here. Anyone with actual metalurgical knowledge is far better placed to comment than me.

This appears likely the technology in question:

Valentin Vogl, Max Åhman, Lars J. Nilsson,
"Assessment of hydrogen direct reduction for fossil-free steelmaking" (2018)

https://www.sciencedirect.com/science/article/pii/S095965261... (PDF freely available)

Also: "Modelling a new, low CO2 emissions, hydrogen steelmaking process" (2013) https://www.sciencedirect.com/science/article/pii/S095965261...

A techno-economic evaluation of the use of hydrogen in a steel production process, utilizing nuclear process heat
Authors: L.M.Germeshuizena, P.W.E.Blomb
(2013)
https://doi.org/10.1016/j.ijhydene.2013.06.076
https://www.sciencedirect.com/science/article/abs/pii/S00406...

Solutions to Hydrogen Attack in Steels (Timmins) addresses the hydrogen embrittlement question:
https://www.worldcat.org/title/solutions-to-hydrogen-attack-...
Doesn't really address any of your questions, but may serve as a starting point: https://hackernoon.com/win3mu-part-1-why-im-writing-a-16-bit...
It's a pretty traditional "Hell, O World" program these days. ;)
https://en.wikipedia.org/wiki/Mann_Act

The law is the law. Seems easier to comply than to transgress.
Wind and solar are not at all cost competitive with nuclear, the question shouldn't even be asked..
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FYI Play Store not accessible directly. There are many many app stores and one can frequently get access to other apk serving sites from China. I wont mention them directly for obvious reasons.
This is what surprises me. MIT is very well endowed, has an extra-ordinarily wealthy alumni network and overall Media Lab is perhaps better positioned financially than any other lab. In emails, the lab director is begging for $100K from a billionaire doner so he can extend one contract. I don't understand.
You are telling me ISRO spent no resources catering to this visit. Even 0.1% of resources, mindshare and energy wasted on landing day is stupid IMO. Do all speeches, visits the next day. Modi was clearly there for a photo op.
I downloaded Berkanan for iOS this summer for use at music festivals when mobile network capacity usually fails, but I didn’t get a chance to use it - anyone else tried it?
Have you seen how much scientists get paid nowadays? Don't even get me started on how most people who follow that career path just end up as lab techs at best, who earn even less. Everyone I know who majored in bio, chem, or physics has ended up in tech. For the money. And why should they have done otherwise?
I cannot speak directly the process described, but hydrogen embrittlement is an effect of exposure of finished metals to hydrogen gas where molecular hydrogen penetrates the metal walls (H2 is a very small and light molecule with a sort of ambiguous electropotential property) and disrupts the metalic structure.

Presumably use in production would avoid this, possibly through oxydising the hydrogen at some point. I'd like to read a more technical metalurgical description though, and am well out of my depth here.

Update: The process Bloomberg describe may be related to the concept of "hydrogen attack", in which hot, high-temperature hydrogen decarburises (reduces/removes carbon in) steel by combining with it to form methane, with the resulting gas then trapped in the metal matrix itself.

It's not clear if/how this process might function in steelmaking itself, though part of that involves decarburisation through the injection of oxygen to the blast furnace.

See:

https://www.twi-global.com/technical-knowledge/faqs/what-is-...
> California and the rest of the Southwest should be abandoning places like California City, IMO, not building them up.

Maybe, but history has repeatedly followed a different path. Southwestern desert cities find a way to get water. How that happens is another matter, but the water eventually comes.

Also, I'm not completely sure about the claim that places like California City should be abandoned. Living in the desert means that you're not, for example, living in a forest. Clearing forests for urban development reduces CO2 capacity and increases reflectivity, both of which can contribute to global warming.

Also, desert urban areas are ideally position to benefit from advances in solar energy technology. They can use that source almost every day of the year. Cities can be located very close to the source. Inexpensive land means that large-scale facilities can be built nearby.
The problem is that this agency is not exactly a move-fast/break-things agile organization. They probably put out the call for bids for this junk five years ago, which means whatever is wrong with it today will be with us for five years, after they put out the CFP to fix it.
Yeah, I have no idea why they removed them. The swipe combined with the high response time means I never know if it registered the swipe and always go back and forth in an effort to change pages.
That sort of rests on whether the women were 'trafficked' in any meaningful sense. If they were not then the media lab team were being judgemental and unpleasant even though they did turn out to be right about his character. If they were then everyone involved is potentially at moral fault, irrespective of who was accepting what.

The greater story of this scandal has parts that should never have happened and parts that were fine. Giving money to MIT and visiting with a bevy of attractive women is eccentric - crass even - but not troubling. The scandal isn't Epstein's giving it is that he was running a child prostitution ring.
He mostly served his sentence outside of jail actually
It will have to occur to someone they care about or themselves. By then it will be too late.
Yes, and this isn't specific to physics. You could say the same about any other scientific field, IE:

Biologists don't fully understand the human brain or aging.

Chemists don't fully understand superconductors.

Astrophysicists don't fully understand black holes.

Computer scientists don't fully understand P vs. NP.
A crime was committed , and DNA evidence is being used to solve the crime. How is this any different than using DNA evidence to solve other crimes?

Also, I find it interesting that a person who was there presumably out of respect for the environment, is polluting the environment by his smoking and littering.
We have those kinds of screens plastered all over public transport in Scandinavia too.

We have an extensive public transport system especially with busses, but now there are up to 12 screens of inescapable news and advertisements with short blinks of actual info in each one.

It's infuriating and reminds me of the dystopian scenarios in Verhoeven movies. I distinctly remember seeing the subway scene in total recall from 1990 and thinking, that's a bit extreme.

But here we are lol - it's amazingly dark.
Coral reefs are useless? What weird philosophy is this? A significant amount of the oceans ecosystem relies on coral reefs.
Ironically, at this point, I associate Buzzfeed more with their reputable, high quality journalism than their clickbait.
While I can't agree with all of your strawman, yes indeed many problems are too complex/needs too much knowledge for most people to understand them.
Humans brains are buggy by default and without cognitive debiasing one is likely to fall in mental trap,especially if we talk about nuclear which evoke fear in most brains and emotions destroy reason.
So there's the same situation as with TS where you can't do runtime reflection to get type annotations? That seems frustrating. The one really rough edge I've seen in TS is type guards. Not the end of the world, obviously, but still kinda gross coming from Java.
Its largely preventable if you act with a reasonable level of care. Test the water with a new batch before you use it, even if its just administering a fraction of what you cooked up first. You are unlikely to have such potent stuff that a hundredth of an active dose is giving you an OD. That is unless someone is actively trying to kill you. The equivalent of an allergy test is nothing specific to injecting hard drugs.

Addicts often dont do it since the test dosage is wasted and its extra injection. It becomes especially problematic when money is tight and you buy individual bubbles. But that is the inherent risk you take with street drugs and the care and effort you have to invest to not OD. Its like never sharing anything that goes into your veins. Neither an OD nor catching HIV or Hep-C are cases of just bad luck, they are the result of being reckless and skipping an important and necessary step.
Please stop calling anyone who doesn't agree with you "left" brigade and "anti national". It insults everyone's intelligence. You don't know me or my political views. You know my opinion on this issue, let's stick to debating that.

Modi's presence sure wouldn't make the lander land better. What if there are key decisions that need to be taken in some missions, in an emergency, would you want politicians looking over their shoulder ? Modi could have gone a day later and given a raucous congratulatory speech or a motivating speech.
It is not well developed, but there are at least two approaches being investigated at lab or pilot scale.

The first involves electrolysis of molten iron oxide.

https://www.bostonmetal.com/moe-technology/

The other approach involves electrolysis of iron ore powder in alkaline aqueous solution.

https://www.siderwin-spire.eu/sites/template.drupal.pulsarte...
This is impressive. But IMHO, anyone starting today should just use Rust from the beginning, and avoid having to endure all of the problems for years and then taking on a big HN-worthy post about 4M lines.
2.4GHz band is the GSM band here in HK so would be major disruption of general communications which is why they cant do it. Yes GSM runs on other bands like 1900 but majority of phones in Asia use GSM as backbone, and LTE over this freq, so unadvisable to block that freq. What could be done is to flood the mesh from myriad devices running the same app or derivative.
This comment makes me want to work with you.
Aka double standard
This is the point of Steve Pinkers last two books Enlightenment Now. He has many graphs of social progress in recent centuries. He attributes this to a society run much more on human reason than in the past, including science, laws, and large governments.

We still have a great deal more room for improvement.
NYC MTA is not at all cash strapped. It’s budget is significantly bigger than transport for london’s, and the two cities have very similar systems.
I've been getting more aggressive about disabling Javascript by default, and for all that people complain, I've been pleasantly surprised how many sites still mostly work without it (some news sites work even better). A larger portion of the web than you might expect still respects the division between content, styling, and functionality.

Hackernews and Reddit (at least the old version) are the two examples that spring to the top of my mind as sites that I sometimes log into without Javascript. Hackernews works so well that I sometimes don't realize I have Javascript turned off. A lot of forums fall into that category.

I'm certainly not anti-JS, I like the language quite a bit and often stick up for it when it gets bashed on HN. But the ability to fall back on non-JS solutions to some problems is an important part of the web, and I wouldn't like to see it disappear. Particularly while we're in the middle of a fight over user-tracking. I think it's important to support graceful fallbacks, and cookies are a pretty good way of doing that.
> There's a lot of stories about understaffed hospitals, very long queues and how new mothers are sent home almost immediately after giving birth (otherwise you can stay a couple of days to get settled).

Same here in the UK interestingly enough. Two hours is a while though, but unsurprising as generally the UK is pretty compact.
He heads the entire government. Doesn't mean he goes to every launch, announcement etc..
The reason why they tell you to start chest compressions when the breathing stops even if you think you feel a pulse is that it is really easy to feel your own pulse, especially in such a high pressure situation. If the electric circuitry of the heart is still intact you wont damage it, but if you skipped compression because you felt your pulse that person is very dead.

On what is so hard with putting the cell phone on speaker and setting it down next to the downed person? Your are still on the line but have your hands free?

Aside from that: thanks for helping a fellow human and congratulations on keeping it together under high pressure.
It’s not censorship: they are not suppressing information, they just aren’t allowing their resources to be used to spread it.

It would be “censorship” if they actively antagonized any attempt to spread the information, such as by lawsuit or DMCA notice. They are just refusing to participate.

And given that the “information” is definitively known to be child pornography and violent white supremacy propaganda presented as news, I would personally say refusing to participate is the only responsible action.
https://www.jstor.org/stable/40600593

Similar story in the Weimar Republic from 1918-1933
It has a lot to do with the timing of this thread. If he left a year ago I would agree but questions around his death put this story in the spotlight.
I've seen some disgusting Java and C++, but that company had pretty high engineering standards so the Java and C++ was always good. The Python was _supposed_ to be good, too, but 20+ devs making changes to this one config generator script meant people were constantly making their own (and breaking each other's) assumptions about how the code should behave.
I don’t know if this is a cultural thing, but at least in California I hear the word “boys” used to refer to grown men pretty frequently.
Seems to be missing an explanation on how they managed to figure out whoever smoked that cigarette was involved in the riot. Is there videos of that specific cigarette being thrown on the ground or something like that?
I ask you because I definitely do not have an M. Sc. In quantum mechanics - at the lowest level of any system isn’t it inevitable that there is no deeper understanding. At a certain point you have hit the base level and things just “are.” Correct me if this is erroneous!
It looks like you've hit 'reply' on the wrong comment? I didn't say anything about everyday, or "keeping up with every twist and turn" of the national news.
Not an asshole if your world views align I guess.
What do you mean? (If you're alleging some rhetorical misconduct or hypocrisy on my part, could you be more specific?)
"Finally, and this is going to go against the grain of the hacker ethic prevalent among many of us HNers, I think it has to be said that being anticompetitive may be unethical but it is not illegal in the framework of US antitrust law unless the company uses a monopoly position to extend its dominance in other markets."

Yes, anti-competetive behavior in an of itself isn't illegal, no one argued that to start with. But the bit about it not being illegal isn't strictly true. You got it backwards. Antitrust laws are about companies being anti-competitive, not simply monopolies. FTC has fined lots of companies for being anti-competitive.
Having never used Rust: how's the ecosystem around it like for maintaining it on production servers? Are there equivalents of Java Mission Control and `jcmd`?
What Is Constructive Input?
> And we are compliant with, and submitting for, the “Respects Your Freedom” certification from the Free Software Foundation.

This is huge. Let’s see if they get certified.
Make up stories to prove your point.
It is a huge waste of talent and misallocation of resources that a large proportion of the smartest and best-trained scientists and engineers in the world get sucked into working in finance, business consulting, advertising/surveillance, etc.

There’s nothing wrong with individual people making this choice (I have many friends in those fields). It’s just evidence of large structural problems in the society.

(Of course, not all “tech” is zero-sum or harmful.)
I didn’t say it wasn’t political, but it’s not just undesirable for immediate political reasons — it’s undesirable for nearly universally-agreed moral and ethical reasons. So implying it’s only inconvenient for politics is, in my opinion, misleading.
that account in particular eventually admits to not having read much about the case.

i honestly am pretty sure the vast majority of the contrarians really are just not familiar with the whole Epstein story, and may only be hearing about it as it intersects with the tech world.
quantum mechanics is well-understood if you don't question the axioms and blindly calculate probabilistic outcomes. That doesn't mean we understand why those calculations work in the first place, what their limits are, what they represent, etc...

ptolemy might object, 'but we can calculate the answer with arbitrary precision!!' but his 'model' didn't capture reality in a meaningful way dispite the accuracy.

The same could be said of quantum mechanics
Disagree, such studies are extremely western oriented, cross cultural studies indicate otherwise
https://www.scientificamerican.com/article/the-myth-of-the-t...
And the Leaf is 4-5 years newer
Probably this as well is worth noting: https://twitter.com/xeni/status/1170352857952002048
Exactly this. Also most information of any complexity has multiple “categories” it could fall into.

What you actually want is a network graph of concepts and notes. This will let you see relationships.
I think it's reasonable to agree that Epstein is a despicable person who should be maligned, ostracized, and punished for his misdeeds… while simultaneously believing that it's possible for there to exist a situation in which the good done by "maintaining ties" with this person could outweigh the bad.

Of course, this depends on the nature of those ties: How much good are they doing, versus how much bad? If it's possible to do that cost-benefit analysis, we might as well do it, because why not?

In this particular case, I have no idea how much additional good the Media Lab was doing as a result of this money. Thus, it actually is impossible for me to do the cost-benefit analysis, because I don't know the benefit side of the equation. But I can enumerate some of the costs:

- It contributed to Epstein being able to feel that he's accepted by society and can shameless appear at meetings and such, in public, with reputable people, despite engaging in despicable behavior. Alternatively, ostracizing him would've sent a strong message and perhaps contributed to a change in his behavior.

- It signaled to people at large that Epstein is a good guy who donates to charitable causes. (This was somewhat mitigated by keeping the donations anonymous.)

- It signaled to people at large that it's okay and normal to work with people who do despicable things. (This was also somewhat mitigated by keeping the donations anonymous.)

- It risked to the Media Lab's reputation if discovered, thus hindering the organization's ability to do more good in the future.

- Other things I'm leaving out?

So clearly a ton of bad. And I'd guess the bad outweighed whatever good was done, given that many people who were working within the Media Lab were opposed to accepting the donations.

But I don't know if it's as simple as "if the guy is bad then always say no full stop." That seems like an oversimplification, and not necessarily the best way to analyze it.
How does one get from these

https://www.reddit.com/r/HongKong/comments/d10k4e/dont_let_t...

https://www.reddit.com/r/HongKong/comments/cv9y4c/protesters...

https://www.reddit.com/r/HongKong/comments/d0iqpy/2000_medic...

to these

https://www.reddit.com/r/HongKong/comments/cutlyk/who_is_mor...

https://www.reddit.com/r/HongKong/comments/d0re3y/police_doi...

https://www.reddit.com/r/HongKong/comments/cxz64b/300_uncut_...

https://www.reddit.com/r/HongKong/comments/d0yl4g/police_dep...

https://www.reddit.com/r/HongKong/comments/d10ewo/8_seconds_...

https://www.reddit.com/r/HongKong/comments/cp0gb2/hk_police_...

https://www.reddit.com/r/China/comments/c04o32/french_journa...

? Now consider that's just the tip of the iceberg, the result of a few minutes of searching and scrolling. I know there's instances of protesters being violent, but it's

a.) not possible for 30% of a city to be on the streets at the same time, without even more supporting them, and it's not possible for all these brave, peaceful, beautiful people to be singing songs like they do, for a protest that's just instigated by a bunch of hooligans or Western intelligence agencies, or however the attempts to smear them go.

b.) not possible to explain most of the police brutality by any action on behalf of the protesters. Which some police apparently call "cockroaches", instances of that being caught on video, too.
Can you explain in layman’s terms what this might mean?
Yes, great share, utopia does seem like the new future of privacy.
It shouldn't exist and if displayed on public property should be torn down, albeit this is an unrelated issue to that of rebellious art.
Do you use AC? Or any mode of transportation other than walking? Or any convenience that relies on fossil fuels or grid electricity? Do you use any manufactured products? Eat any food that has been shipped a distance farther than your garden?

I assume (perhaps I should not) that by "littering" you are referring to the production of greenhouse gases. If this is so, I'd like to point out that if you are breathing, by your definition, you are littering with every breath.
Why are there inevitably people who want to do the mental gymnastics of assuming innocence for a man convicted of sex trafficking?

I understand assuming innocence the first time someone is accused of anything unsavory because mistakes happen. But once you are convicted, serve jail time and are suspiciously behaving in the same manner...

Who are we serving by assuming innocence?

And let me remind you that in society we have different standards than a court of law. A court of law has to assume innocence, in public we might be doing another human being who is a potential victim great good by expressing concern about the nature their relationship with a known felon & abuser.