skysight-inc/HackerNews huggingface dataset:
Modeling vehicle dynamics as a whole is a great subject, because there are so many parts where you have to explicitly decide on how much you wish to simulate. Brakes, tires, suspension, vibration transfer... On one hand you can have a simulated vehicle in 2 hours of coding, and on the other you can spend two months on tires alone.

One related story I like is how Assetto Corsa Competizione devs bumped into "weird" behavior emerging from their simulations which seemed like a bug - but then confronted with the actual manufacturers and found out that it happens in real life as well:

https://www.youtube.com/watch?v=PFxIZ-9Awj4

Highly recommended, video is titled "A traction control bug that was a realistic feature".

EDIT: And this is before you get to aerodynamics, which is a whole different can of worms. With todays GT3 cars, how you simulate the front splitter and rear diffuser can make or break the accuracy of the simulation. It's fantastic stuff. Wish I worked on this day-to-day. On the other hand I have trouble putting it down and going to bed when doing it as a hobby, so...
In Australia a significant amount (can't remember the specifics) of cattle is raised on land that is unsuitable for crop production. My own experience confirms this. I've seen many cattle farms around Queensland - some with low stocking density and no deforestation, others very poorly managed with no trees at all or full of invasive species.

It's not as simple as eating meat = bad, but that's the message most people are getting. If they respond by stopping eating meat, then great - not the best choice, but a step in the right direction. If they respond by stopping to care where their food comes from then not so great.
"Hillary Clinton runs child porn ring" — is not a fake data, it's a Russel's teapot, you can't fight it with reason. And marking as a fake is a bad move because it inflates notion of “fake”.
If this results in them leaving twitter then is that not a positive?

We can't save the people who have already gone down the rabbit hole but we can prevent more jumping in after them.
> A lot of kids must have grown up never facing and learning to to deal with disagreement

You mean the "anti-maskers" who throw a fit for wearing a face covering for 30min when they have to go to the supermarket?
I would go even further in this argument - it's the small, altough very loud minority of FB (or other IT company) employees, living in their Twitter feeds and causing outrage totally disproportional to their group size. The "missing snacks" example in the article illustrates it beautifully. I would argue that it actually concerns more employees than content policy issues.
Cppcon will have a talk about bridging the gap between Rust and C++
Under Discussion: Coding Blockchains in Go
I'm not sure where they get their data but this list is usually like %70 conservative media figures. https://twitter.com/FacebooksTop10
Why Walmart thinks TikTok is the future of its business
As an outsider (from a different continent), it doesn't seem at all likely that there is a chance for Biden winning.

It probably looks the same from where Zuck is sitting.

We might, of course, both be wrong :)
There is no input of methane. The cows eat cellulose, and bacteria in their gut break the cellulose down into small molecules, including methane. Reduction in methane production can come from a reduction in the amount of cellulose broken down, or an increase in the production of other small molecules.

The other small molecules in question seem to be what are called "volatile fatty acids" (VFAs), which i think are more or less the same as "short-chain fatty acids" [0], and they're good for the animal.

Acetate and propionate are two main VFAs. A study on sheep [1] found that "Sheep fed Asparagopsis had a significantly lower concentration of total volatile fatty acids and acetate, but a higher propionate concentration.". If there's less methane and also less VFAs, then i assume less cellulose is being broken down. But more of the carbon from it is going into VFAs.

It would be good to have a study like this in cows.

[0] https://en.wikipedia.org/wiki/Short-chain_fatty_acid

[1] https://www.publish.csiro.au/an/an15883
Princeton's cheap, empty virtue-signaling may prove expensive
You wanting eaten?
Where there's a slip (ratio) there's a way
Google stopped several projects it had collaborating with Defense, retracted from the Chinese market, stopped mining Gmail data... all of that illustrate my point.

So, it is a point of view supported by evidence, not "naivety".

As I said, I am not personifying these companies, just stressing the leverage of different mechanisms as business plans, and the one favored by Google is to attract and retain its elite staff, and to do so they have to behave.
Some links inside the article. Byte magazine was plenty of ads, and articles can continue after jumping 300 pages

Start: https://archive.org/details/byte-magazine-1984-08/page/n137/...

Continuation: https://archive.org/details/byte-magazine-1984-08/page/n405/...

Results: https://archive.org/details/byte-magazine-1984-08/page/n411/...
Hold up its the disgusting things we're feeding cattle that's contributing to their immense environmental impact? HUH.
Maybe someday we'll realize that raising them in feedlots on 100% processed packaged food made from things like how they forage in nature is most of the problem as well, and if you raise them in distributed networks so they interact with their ecosystem instead of trampling it, and then not have to ship them 1000 miles to consumers, their emissions, and environmental impact DROPS.
Maybe then we'll start putting the chain together, and realize that its not beef itself, but rather the high fat, low vitamin, amalgamation of beef we now usually consume, due to these practices is what is ACTUALLY unhealthy for us to eat.
I recommend that you watch the "Planet of The Humans" documentary to understand why there is no cheap or green energy: https://www.youtube.com/watch?v=Zk11vI-7czE
You'd think that "Use your eyes. It looks flat!" Would be enough...

/s
You forgot a "not". :)
I think the author is suggesting that necessities of empire building in the 17-1800's were a significant driver in the adoption of modern medicine.

It reads very much like a just-so story though, so I'm not sure how valuable it is.
I was introduced to this from reading Moonkwalking with Einstein by Joshua Foer, and there's a few communities online you can find with a little searching. Here's an example:

The technique is known as PAO (Person, Action, Object). Each 2 digit number has a unique Person/Action/Object combo. At the time wrote my own PAO I was entrenched in a foreign language that puts the verb at the end of the sentence, so I forever think Person/Object/Action for this system now but that's not a big deal, you could conceivably use any order you want as long as you're consistent.

An example: the number 23 makes me think of Michael Jordan, so I assigned Michael Jordan/Basketball/Slam Dunk to the number 23. 84 is Winston Smith/Pen/Write in a Diary. 01 is Frodo/the One Ring/Become invisible.

To remember the number 842301 you parse the number into 2 digit strings 84/23/01 and you replace them with your POA to create a memorable mnemonic. Winston Smith putting a basketball on his finger and turning invisible. This one mnemonic is information dense, it has 6 digits. Create 17 of these and put them in your memory palace and you've memorized the first 102 digits of pi.

To memorize populations of countries I replaced the Person part of the mnemonic with some person from that country. For Russia it was Putin, for Mexico it was a Mexican friend of mine. My goal was to remember how many millions of people; the only exceptions on the list were China and India which had billions but that was easy enough to remember without a uniform mnemonic.

Russia has 146 million people. Putin/1/46. My number 01 is Frodo, 46 is the Hulk. Putin using the one ring to "hulk smash" St. Basil's Cathedral. Because the memory palace is ordinal it was also easy for me to rattle off things like "Russia's the 9th most populated country in the world".
One problem with hydrogen powered air plannes (which I know from some older articles I had read airbus is aware of) is that emitting small water droplets in the higher atmosphere is actually problematic.

I have no good sources but don't articles I have read said it's potentially worse then the CO2 emission of current air plainness.

So additional care must be taken to not condense the water from the hydrogen burning into larger potions/prices before emitting it.
Looks like that "anti-racist" is upset that she can't post racist and sexist things about white men. Not exactly the example I'd give to show that FB is censoring liberals.
I imagine you don't want to share too much info about this, but I'd be interested in any more detail you are willing to share.
Premise:

Diversity is good.

Diversity means diversity of ideas.

Ergo, you will disagree vehemently with people, and this is a good thing under the framework of diversity.

Do not confuse disagreeing with someone as that person being morally sub-human, and if you are able to do this your life will be more pleasant.

Disagreement is a good thing, it is society’s mechanism for decision making in complex circumstances.
>overshoot, which leads to collapse

Imagine, in 50 or so years, a fairly substantial human colony is established on another planet, and it figures out how to become self-sustaining.

This self-sustenance act is what we need to refine - not the going to Mars bit, of course - but what I am trying to say is that the pressure is on to find self-sustaining ways to feed humans (hint: grow local or gtfo) at the very high end of the privileged technologically elite spectrum of the human misery scale, i.e. SpaceX versus the slums.

If we can get to Mars and sustain, we can change the way humans on Earth live, in extraordinary ways. I'd even be willing to wager a bet that in 100 years, ones sovereign citizenship is going to be irrelevant - what will count, is whether you can make water towers into rocketships.

(I don't see SpaceX as a rich mans game - I truly believe its a human response to the human disaster you talk about. If we can move manufacturing and food production into space, we may very well have a chance to turn things off in 100 years, and let Mother Earth just grow again ..)
What a beautiful answer
Source: https://ourworldindata.org/land-use

The figure given is 77% of agricultural land is used for livestock
Goodbye to Faulty Software? – ScienceDaily
Yes, a shell script, but for the sake of the discussion, you must imagine that to the average user, invoking a shell script is “the same” as navigating through a few settings menus and clicking some checkboxes they don’t understand: that is to say, when the UX is sufficiently lacking, users often enter “well I don’t really know what I’m doing just push through” mode.
It seems that a lot of such blocking are done with a lower kind of effort by those who are tasked to implement it. An example is the UK porn and piracy filters,but also a bunch of east state countries with the "whoops, you entered a bad place" firewalls.

I would speculate that the purpose of those are not to be a perfect blocks but rather a methods to mold and redirect citizens towards what the state want.
First Beta Release of Briar GTK
I am not really personifying it besides the introductory line:

I am explaining that the mechanism is that Google cares foremost about attracting and retaining a somewhat socially and ecologically responsible (one could say as well leftwards as a synonym) staff.

The fact that elite scientists and engineers are leaning to the left is a demographics fact, not some opinion from me. And it can even been explained by how the education system endows its pupils with a set of values, meant to make them better citizens i.e. more responsible, and finally that means more on the left.
Judging from the number of windows in the renders and comparing with existing aircraft, it looks like the rear third of the plane is fuel tank.
There is also work underway on solar cells which directly produce hydrogen instead of electricity.
Things make a little more sense when you realize that political parties are just businesses, IRS registered like any other. They make money by selling regulatory influence. If your concerns aren’t being represented well, it must mean that you are not a customer. You can pay with your vote, but most people don’t, as in, will never vote differently, no matter what. So you see, if you always vote for one party, and you don’t give money to party-neutral policy PACs, you’re completely irrelevant to politicians.
A good intro to tamago: https://media.ccc.de/v/36c3-10597-tamago_-_bare_metal_go_fra...
Anyone know how we can help him?
That wouldn't work well for C since signed overflow is undefined, but unsigned overflow is well-defined, with wrapping semantics. Making all existing arithmetic instructions trapping would mean paying trapping costs for well-defined unsigned overflow.
https://yurichev.com/news/20191207_github/
Maybe look into a window manager app and create a separate virtual desktop you can switch to? You didn't say what OS you are running but a quick search found Magnet for OSX (https://magnet.crowdcafe.com/)

There are going to be security reasons you can't have 5 different domains loading into one chrome tab.
Analyzing the London Property Boom
$1 hearing aid could treat millions with hearing loss
And often killing the domestic production in that country, because they can't compete with the highly subsidized import.
Yep, that's how I intended it, effectively the same as "What?" with the implied offense level being no larger or smaller than the offense inherent in expressing surprise at someone else's opinion. That level is not zero, but it falls well within the bounds of civil discourse, especially given the lack of elaboration in the original position and the fact that I invested seventeen times its length on explaining my own -- only to not receive a followup from the original poster.
This is one of the many internal paradoxes of democracy that makes it extremely fragile (in the grand scheme of things) and unlikely to survive for a very long time.
> A dog is capable of detecting the presence of the coronavirus within 10 seconds and the entire process takes less than a minute to complete

Considering Covid tests are only about 75% accurate, this is pretty amazing. Hope those dogs can't get Covid though
I just finished reading "The Coddling of the American Mind", and it goes into the subject pretty well. A lot of it stems from parents not letting their kids be independent, so they never learn to deal with disagreements from dealing with other kids, then colleges cave to whatever demands they have because they just want to collect tuition money.
The Rise of Digital Despots
> Electricity generated from nuclear is about four times more expensive than solar and wind

Does that cost comparison include the storage required to use the solar and wind at night, during dark winter days, etc?
I read the article before coming to read the HN response to it. I haven't read beyond your top-of-the-thread comment.

The article resonated deeply with me, because I know just how the author feels. I, too, have developed a software product that attempts to address a key failing in one of the (more under-utilized) DOM elements we have at our disposal when building websites. I can see the problem, and some of the solutions - but other developers are simply not interested. I've marketed the product to the best of my abilities, written blog posts about why I think this is an important issue. I've even tried to engage with people supposedly interested in overcoming the failing to help me make the product even better ... <crickets-chirping> ... nothing.

The harsh truth is you can't market a solution to a problem that nobody else believes is a problem in the first place.

I've posted links to my product on a number of occasions to HN, both as 'Show HN' threads and in comments. Engagement has been minimal. My most upvoted comment on HN was a contribution to a thread about octopuses. Maybe HN is trying to tell me that I would be better off developing a standup comedy routine? Whatever. Unlike the author and his company, I'll not be pivoting away from my product in the near future: I just need to find new ways to shove its existence into people's faces.
More generally (and less insultingly!), any programmers who mostly work with frameworks, rather than writing solid chunks of their own code.

I had a job building e-commerce websites on top of a framework. Our code was a thin layer invoking and customising the framework. It was difficult work that we charged a lot for, because it required extensive knowledge of the framework (which was badly designed and poorly documented). But it never involved thinking really hard about programming itself.

I would imagine most Rails programmers are in a similar place.
This is a good summary and I agree with the vast majority of it, with the exception of
>"Beware of “wet sand”. These areas can seem bottomless and usually require assistance" sentence.

I'm no expert but I do drive on UK beaches at least once a week to launch and recover lifeboats, and I've always found wet sand to be firmer and much better for driving on that the dry, light fluffy stuff found at the top of the beach near the dunes!
UX / look and feel is one of those things where a company cannot win; ANY change, especially redesigns, will cause friction with their customers.

Ask people what they want with the UI and you get either small pet peeves (but none of them statistically significant), but generally a "leave it as is" answer. Even though the current version may not tick all the boxes from the company's point of view - things like engagement, advertising opportunities, etc.
> signalling

True fact, Australia is a terrible polluter. One of the top 10 worst polluters, per capita, of any of the worlds nations.

Getting the cows on sea cabbage is going to be great, but Australia still needs to do something about its coal and refinery emissions issues.

Feels good, though, for Australians to be 'first' at something. For some reason this is important.
It is odd. It thought the presentation was compelling and audacious, they really do mean to change the world, and presented a detailed and plausible plan to do that.

And yet, no serious discussion on HN except for some halfhearted dismisals. It's almost as if no-one understood it.
Yeah, the way people like JK Rowling have been hounded for not agreeing on every point with some people is very depressing to see, considering that she has been quite supportive in the past of the very groups that are hounding her.

She has changed a lot since writing Harry Potter. It's obvious that she no longer believes in supporting marginalised groups or telling people that it's OK to be who you want to be. Her recent work is extremely political and designed to further marginalise people who are already marginalised - she's literally just had a book published that's about a serial killer who dresses as a woman to approach and attack other women, which isn't even slightly veiled as an attack on the trans community.

If that's how she thinks now then she has every right to be like that, but everyone else has the right to point out she's being an asshole.

As always, there's an XKCD for this - https://xkcd.com/1357/
What types of bonds are you referring to? Treasury bonds aren’t exactly going gang busters. Or maybe we’re talking about different periods?

The point I was trying to make (maybe unclearly) is that one of the main bullets to assist the broad economy may have already been fired. To your point, there will always be segments of the economy that perform well, but that’s not equivalent to the broad economy performing well
Sometimes I read comments first before deciding to read article.
I disagree, it depends on the lifestyle of the person. The richest 10% are responsible for 52% of carbon emissions[1]. If the only way to have a good life is to live like the richest 10% (or 50%) one could say we are too many people, but that does not have to be true, especially not in the future.

[1] https://www.theguardian.com/environment/2020/sep/21/worlds-r...
I understand that what the cows eat has a large effect on the taste of the milk, so if the cows are milkers that’s an issue to be overcome.
Information Visualization for Search Interfaces (2009)
%age accuracy is meaningless. They need to talk about sensitivity and selectivity. Without those the article is useless.
Black holes are same as any other matter and the lensing is only dependent on mass. So if in a distant galaxy there is dark matter, the lensing will be exactly the same regardless fo whether this is in a form of cloud of particles or from billions of small black holes.
Adding a few points from my own experience:

- Keep the front wheel as light as possible, that means pushing your body far back whilst standing on the pegs.

- If things start to get twitchy give it some gas - throttle heals most such situations, though is counter-intuitive and scary.

Sand needs skinny and big (radius) front wheel, that's why most offroad motorcycles have 21" front wheel. The counter point to this is harder turning in the twisties on tarmac due to increased gyroscopic effect of bigger radius wheel. Sportsbikes have 17" for this reason, tourist and soft-enduro bikes try to strike a balance with 19" wheel and hard enduros are all 21". Bigger wheel climbs up, smaller wheel digs itself in.
Post from 2016:

https://news.ycombinator.com/item?id=11462308 (24 comments)
Has nothing to do with bleeding edge. Problem is trivial to solve for anyone who actually needs to. It's not surprising a land grab to be an overcomplicated middleman service that is not needed and contributes zero value failed.

What is astonishing is that after the fact someone is still trying to extract value from it by positioning obvious learnings as insights.
Absolutely true. We can definitely be treating the land better.

The only reason we need industrial fertilisers, is because its packaged so well and easy to distribute. But if we weren't raping the soil in the first place, we wouldn't have this problem.

Industrialized farming needs to be revolutionised by the same technique that computing went through: a DIY revolution.

If you don't have a garden, now is the time to start. Everyone should have a garden.
> Potentially an OS kernel written (for example) in a language like Rust (though not without its own challenges) could have more consistent performance and lower memory overhead.

Yeah potentially, but implementing in easier language in less time may be acceptable trade-off.

Because Go is not poster child of fast GC'd languages either (conscious choice of a simpler optimzer for fast builds), and the implementation only showed 10%-15% difference with linux, the situation is optimistic.

With better escape analysis in GC languages and better compilers, the gap can be reduced further.

> Apple adopting ARC

That's because of legacy interop concerns mainly. Swift's ARC implementation was once horrible, and ARC still seems to be a significant bottleneck in SwiftUI. The ARC more efficient blanket statement myth is mainly spread by apple fanboys, who might not even have heard the words 'cache' and 'contention'.

The efficient ARC methods like deferred RC approach a tracing GC.

The benefit of RC is predictability (though not always) & RAII. That's why Rust and many C codebases use explicit refcounting when lifetimes are unknown.
At least you could sell them on to the windmill people if you never got an order for said machine, I guess.