skysight-inc/HackerNews huggingface dataset:
Really recommend watching the short video at the end of the article. It shows them fiddling with a 3d-printed prototype of the folding propeller, and some of the CFD analysis of the prop wake - wing interaction.
Covid-19: Immunity and Seasonality
Git succeeded because of Linus.

Sure as hell wasn't because of the UX, else Mercurial would have won, or even DARCS.

99.99999% of projects are not the Linux kernel
Another example is David Walsh, the founder of MONA in Hobart.

I think I read this in his book, that his interest in art and antiquities started because he needed a way to move his cash winnings from gambling overseas back to Australia.

You can't simply bundle up all your money and board a plane as there are limits on how much hard currency a country will allow you to remove - but not for artwork.
"Test refusal" is a very bad metric. Almost no countries are testing anyone who suspects they might be infected. A lot of European countries actually have more restrictive guidelines than Japan - Norway won't even test people arriving from COVID-19 hotspots if they only exhibit minor symptoms.

In Japan 6-7% of the tests come back positive. This is not at all indicative of too little testing.
>reaction of :+1: is usually sufficient

If I remember correctly, you don't actually get notified of any +1 reaction.
This is dated seven years ago 2013, mod please add a date tag.
> perhaps it's time to make it more decentralized and dynamic (the original proposition)

Honestly, what does that even mean? Wouldn't it be even more chaotic?
Good writeup, fairly made points. It'd be easy to laugh at OpenBSD finding SMTPD vulnerabilities even now (I did); but as TFA points out it's complicated and often hard to see these things.

And that's in OpenBSD which has had the honest effort and passion of scary geeks with no sense of proportion for how many years?

Compare that to the security posture inherent in projects that install with

sudo bash <(curl -sL someurl.wtf/thatredirectsanyway )

"Secure" computing today is just not going to happen. Not saying its a bad goal, or a waste of time; just that its a metaphysical pursuit of perfection doomed to beautiful failure.
Big Project Build Times–Chromium
I think people are more excited about the possibilities of the CPU than this specific laptop, but fair point.
Why is that true? They are densely populated. Fewer people also means fewer resources: for example they couldn't supply themselves with masks.
There's room for both approaches.

Some people can use pre-made UI components while others can have them tailor-made to better fit the case.

I, as a programmer, have a tough work to design UI components that fit well together, and of course I don't do as a good job as someone trained to do this.

So, I rather reuse components done by others if the project I am working on does not have a budget for UI specialists as can happen to a lot of projects.
Except that Wuhan is at the same latitude as Texas.

You also failed to mention Washington, which was the site of the first outbreak in the US, and is about as north as you can go and still remain in the union, excluding Alaska. Washington currently has the second-slowest death-count doubling-rate out of any state with at least 10 deaths. Their deaths double every 7 days. It used to be every 3 days. Can’t attribute that to the heat. You know what you can attribute it to? Washington’s response to the outbreak.

Florida’s deaths double every 3 days. Louisiana’s deaths double every 3 days.

Texas’s deaths double every 3 days.

Vermont, another northern state that borders New York state, has the slowest death count doubling rate, at every 12 days.

This is exponential growth. Please stop dealing with absolute numbers. Some states are later into their epidemics than others. Texas is relatively early into their outbreak at ~7 days since the 10th death, but their deaths are growing exponentially as well. The exponential growth curve should be what you’re observing, or else you will make the same mistake that everyone who thinks they’re exceptional makes.
What's Your Contrarian Truth?
According to that data NY has tested almost 1% of their population while Texas has tested only 0.1% of theirs. But even if we look only at hospitalizations as you’ve suggested could it be that you’re incorrectly attributing the slower rates to temperature rather than population density? The colder cities in the US are the older cities where people live very closely together. States like Texas have a certain degree of “social distancing” already baked in. Using the drive thru and avoiding the subway and elevators isn’t really a drastic change for Texas. It’s basically impossible for much of New York.
The Most Innovative Bottle Shooting Games for Android Users
> let's make the good ones with the best possible outcome, regardless of their nature/definition.

Is that the best possible outcome to Taiwan? or to China? Because arguably 'best' in this case is subjective
The stereo stuff going on is super distracting for me :v
Over the past few years I have grown disillusioned by the seemingly hyper focus on clean code concept. It seems perfectly logical to have readable code. But the excess that we programmers do with the concept.
In most apps nearly everything is interactive

It's probably better to specify what isn't interactive rather than specifying what is
From everything I've read about COVID-19 and flu-like infections, I'm also inclined to believe that warmer climates help slow COVID-19 outbreaks. It is (in my opinion) the most plausible explanation why certain regions are hit so much worse than others thus far. I also believe a paper I recently read supports this hypothesis.

I've seen the media publish articles with titles like "coronavirus myths busted: warm weather stops the virus". Ironically, these attempts to combat misinformation are dubious themselves, as the truth is probably somewhere in the middle; that is, warm climates may not outright stop COVID-19, but they may certainly hinder it. The fact is, while we can't make definitive statements at the moment due to limited data and understanding of the virus's pathology, we can make educated guesses through observation.

Another contentious point (particularly here in Australia) is the sentiment that children are mostly immune to the virus. The Aus government is pushing this line very strongly as an excuse to keep schools open (i.e. economical reasons).

So yeah, I don't know why I wrote this comment. Probably to stress the fine line that exists between having a mindset which is open to observational theories, while also being critical of "facts" which are pushed to drive political agendas amidst the coronavirus outbreak.
It's not an outlier. Germany has even lower numbers despite doing even less than Korea.

Italy and the UK book the death of anyone who died testing positive as a covid19 death. The UK won't release any figures beyond that. Not even hospitalisation data. Studies in Italy show fewer than 15% of those deaths might be specifically caused by it.

> On re-evaluation by the National Institute of Health, only 12 per cent of death certificates have shown a direct causality from coronavirus, while 88 per cent of patients who have died have at least one pre-morbidity - many had two or three,” he says.^

In fact the average comorbiditities is 2.7. mean age of death is 79.5 years. Median 80.5.

^ https://www.telegraph.co.uk/global-health/science-and-diseas...
This. Pull mirroring is a must before my team would considering using it.
The entire human race is a cognitive bias, you can't have christians and muslims be right at the same time. One population of religious people must be wrong and therefore a huge portion of the population must be cognitively biased to an extreme degree of believing in something completely wrong.

It is part of human nature to be hugely biased to a completely absurd degree and software engineers and scientists are not immune to this effect.

The worst that I've seen this in (to the best of my ability, as I'm cognitively biased too) is in design patterns.

Typical scenario:

Object instantiation requires 50 parameters to be fully realized. Some coworker suggested that we instantiate an object with empty members and create 50 methods on an object that each take one parameter to load the object.

Apparently having a function that takes 50 parameters create the object was a code smell because it didn't have a fancy name. That fancy name was "builder pattern."

If you can't see how utterly stupid builder pattern is for this case... well... cognitive bias.
I've been working on my regular job since I can commit code from home.
Are you looking for a handcrafted gift?
I assumed that this was related to openui5 from SAP. is it?
It's working in Firefox on Linux. You do need to allow some scripts from the author's third party domain though.
Bills Come Due
"Not only that - if this goes to court ..."

They gave authors the ability to opt out.
From the FAQ:

"If I am an author and I do not want my book to be temporarily available during this crisis, how can I remove my book from the National Emergency Library?
Authors who do not want their books in the National Emergency Library should send an email to info@archive.org with “National Emergency Library Removal Request” as the subject line. Please include each URL of the book or books you would like to have removed. Please allow up to 72 hours for processing as we are a small team."
Bad article, the only specific regulation they even mention supporting is "cleanliness" as if most uber/lyfts aren't clean already, more than buses at least, which they are comparing them to. And how are uber/lyft regulations even related to restaurants. Stop upvoting this blogspam
Perhaps the gentleman lives in the USA?
Those are called taxis.
Uooolets hi!!!
Until you have to deal with customer support. That takes an insane amount of bandwidth.
Ah, I see. A bit odd to call it a "meeting" then. Board briefing to the shareholders?

Whatever you call it, I doff my hat.
You can even do much more complex things using SOAP, but Rest is much easier to learn and use, so a junior programmer can pick it up in days or hours.

People dislike having to make efforts.
I was born in Soviet Union, I grew as it was collapsing, when I left Russia, it already was through two devastating crises.

US had no serious calamity since Civil War. All wars since then were not on the main territory, 9/11 is actually relatively minor. As such nation is not prepared to deal with any serious problem. On top of that economy and business are hyper-optimized, and thus extremely fragile.

For many other countries this pandemic is not a huge deal, not because it’s not terrible, but because they recently have seen worse. They will take their losses and move on. US eventually will do the same, but will learn the lesson the hard way.
There's no better place to put them if your goal is redundancy with lots of small props. Puller props are generally more efficient because they're not in the wake of the wing, but it's a tradeoff and you can Google as for the pros/cons of push vs. pull props. The larger tip props are really interesting. Larger, slower rotors are more efficient. Putting them far outboard puts them in the least-disturbed flow while knocking out the tip vortices. This is only possible with lightweight electric motors vs. shrouded turbines, otherwise the wing/wing box would be quite heavy to support such a long moment arm.
You can't cancel a meetup subscription online, you have to submit a ticket.
You can start a subscription online however.
Another sign of a failed company, trying to hold onto those who want to leave.

The New York Times is the same. Rather than bothering I simply cancelled it on the PayPal side.
Not only are the files incomplete to actually go into production, they’ve picked a model where the components are not readily available on the open market in quantities large enough to have an impact corresponding to effort. IC4 is some variant of the ST10F27 (can’t make out the last digit from the low res pdf they’ve provided), and there are only a few thousand of all variants of that chip available online with quotes lead times of up to 30 weeks.

I was initially pleasantly surprised with this release but tweeted my disappointment pretty quickly. Even with a schematic it can take months to get the layout right and validated on a line, build and setup the test apparatus...
Okay, I'll try again.

AFAIK, the number 1 shows up in nature, it actually represents either an everything (this entire atom) or a 0-1 continuum.

When the number 2 shows up in nature, it's always balanced opposing somethings. Newton's third law, matter / antimatter, negative/positive electric charge, n/s on a magnet.

When the number 3 shows up in nature, you actually get a set of things. Proton, neutrons, electrons; and perhaps this theory now runs into a problem because I'm not thinking of another trinity.

So, if you have two things, and they're not opposites, they imply more things in the category. If you have one thing in a category, and it's not an everything or a spectrum (of the everything), it implies more things in the category. If you have three things in a category, they only imply more things if two of them have a symmetrical relationship (resistors, inductors, capacitors). The category may still have more things. but it's not otherwise implied.
I started reading R.A Salvatore's Forgotten Realms books when I was around 12 or 13, starting with the Crystal Shard and eventually working my way through the next dozen or so as they came out.

Growing up in rural Texas, I perceived themes related to stoicism, equality, and racism, that, while probably not intended by the author, still made me think about the way I'd seen people treated, and how I wanted to treat people in the future.

In addition, there were a few quotes in some of the chapter titles that stuck with me for whatever reason: "Joy multiplies when it is shared among friends, but grief diminishes with every division. That is life.”

I doubt I would see the same things in those books if I read them now, but perhaps for the right audience at the right time there might be something there.
Be careful with the E series.

They don't officially support Linux anymore and I had to wait 12months for a BIOS update to solve all the issues with my E585 :(
I think you may be misapprehending the implication HN user "kick" may be making.

I think "kick" means that there are developing nations that don't care about IP law. The authorities in these nations are not going to help anyone arrest anyone. In fact, in some developing nations, the authorities may actually be the ones infringing the IP.

I know for a fact this is the case in Cuba.

Of course Cuba's doctors are world renown, but just how do you think their health system gets those kinds of world leading medical outcomes under a comprehensive blockade for over 60 years with no access to medications or healthcare technology? It's not only due to Cuban doctors inventing novel procedures and medications. (Which is admirable). It's also due in no small part to the Cuban state flagrantly ignoring IP. And Cuban doctors will infringe IP without hesitation if they think it will help their patients. So when Cuban doctors show up in West Africa to contain Ebola, or in East Africa for SARS, or in Italy for Coronavirus, or etc etc etc, the host nations likely don't ask a whole lot of questions about whether or not certain equipment or medications they have with them infringe patents.

Please don't misunderstand, I don't believe what the Cuban medical community does is wrong at all. They've got a patient, and they see themselves as pure doctors and not beholden to commercial interests where patient safety is concerned. Good on them. I'm just pointing out that "kick" is right, there are a lot of developing nations out there who simply ignore IP. Cuba is just one of the more famous examples.
Ask HN: How to switch to embedded software development mid-career?
I'm a software engineer with 15 years experience. I've worked on various types of software, but always within the realm of "traditional software", like web servers, desktop software, and lately, services.

Ever since switching to services, I've been disillusioned with the field. I don't like messing with AWS, hate dealing with Kubernetes and the ecosystem around it, and I just feel like the field as a whole produces sloppy code.

I feel constantly anxious about having to learn new stacks often, usually having little time to do so. I can't master anything. I fail to see how all the stuff that pops up moves things in a better direction. It feels more like randomization than improvement.

Over the years, I've caught little anecdotes about embedded software development, in particular mission critical software. Maybe I'm wrong, but it seems to be a more rigorous field when it comes to writing software that works and is verifiably correct. I also like the idea of writing code that runs on a single machine, as opposed to e.g. a Kubernetes cluster.

For example, someone wrote this here on HN:

> The embedded world is very slow to change, so you can read about "modern approaches" (i.e. approaches used today) in any book about embedded programming written in the last 30 years.

> I currently work on spacecraft flight software and the only real advance on this project over something like the space shuttle that I can point to is that we're trying out some continuous integration on this project. We would like to use a lot of modern C++ features, but the compiler for our flight hardware platform is GCC 4.1 (upgrading to GCC 4.3 soon if we're lucky).

https://news.ycombinator.com/item?id=22391560

That sounds like a dream to me. To be able to focus my expertise on one thing (or one set of things) and apply that throughout my career.

Is it possible for someone at my career stage to switch into embedded software development? Has anyone here done that?
Bootstrap and material have made half of the web to look the same.

It's not a great thing.
I unironically enjoy listening to this 16-second loop on repeat for 50 minutes: https://youtu.be/8snzt-umd0g

More recently, Haircuts for Men: https://youtu.be/XZUiPCGjej8
The regulation already exists, ridesharing companies just decided to break the law and challenge the definition of "employee" and "taxi" because ridesharing companies have an app. That was weird from the begging.

All the gig economy is just based in the idea that companies that do business thru an app doesn't need to follow established laws.
Indeed, and it's worth calling out that we've worked to ensure that 20.04 LTS, which will ship with 5.4, does have Wireguard support featured in it.
That's cool. Same here, can't wait. I actually bought a cheap barbell and some light weights so at least I can keep practicing technique in my apartment :)
I'm a big fan of Wireguard. I wrote wg-access-server [1] as an all-in-one wireguard VPN solution. I recently added some docs [2] and support for deploying with Helm. I'd love some feedback on here or on github. Give it a try.

[1] https://github.com/place1/wg-access-server
[2] https://place1.github.io/wg-access-server/
I actually thought at first glance the name was Do-It, which reminds me of this story from Bill Atkinson doing user testing at Apple:

We had a place where we would put up a dialog that would say “Do It”, or “Cancel”, and we’d give somebody a document and say “Here, edit this and save it”, and they’d get to the point where they’re supposed to choose “Do It”, and they’d look a little miffed, and then hit cancel. And we saw that several times, different people.

[...] And when we saw this [in the video recordings], people looking a little miffed and then hitting cancel instead of do it, we turned up the volume and played it back, and [heard them mutter]: “What’s this ‘Dolt’?” I’m no dolt! So I hit cancel”.

https://scs.hosted.panopto.com/Panopto/Pages/Viewer.aspx?id=...
Oregon votes by mail. Why not all states jump on the bandwagon? https://www.ncsl.org/research/elections-and-campaigns/all-ma...
numbers more important than best of breed, imo
Cesspit || monopoly. You can't please HN when it's sucking on or thirsting for that VC juice.
I am not sure what this brings to the table. I read the first paper about information theory from the constructor viewpoint and a constructor just seems to be some function. I am not sure if there is some deep takeaway. Physics people already care about what "transformations" occur on a system? Eg quantum computation is about unitary transformations?

I also feel its like a physicist is trying to recast stuff in a functional perspective without knowing it. For example saying a quantum field theory is a functor : Bord -> Vect, might be something a mathematician would say, but it seems not many physics people would be familiar with this idea.

I think its also interesting they have this flashy website which kind of reminds me of a scam.
The sound effects sound like Ross' music (from Friends):

https://www.youtube.com/watch?v=ERy-99vXxnM
Well that and it is disgusting.
This response by the Internet Archive focuses on easily refutable claims, such as that they acquired their books illegally, while sidestepping the one substantive issue: that they had no legal right to replace the controlled digital lending process that they had been following with uncontrolled lending. This is what so many authors and publishers are objecting to; and they are right to point out that this resembles simple piracy.
I never even thought about using a DNS based tunnel for this problem. Amazing.
Why we need #Masks4All, and how to make your own mask[0]

[0]https://www.youtube.com/watch?v=hVEVve-3QeM
That's correct, essentially you can apply Newton's law (F = dp/dt): the propellers over wings can produce a strong downward momentum flux (air flux) that by reaction generates lift (upward force). Without this flux being directly controllable by the wings (or steerable in other ways), you need to rely on the vehicle's airspeed to generate sufficient airflow on the wings to produce lift (so you'd expect greater takeoff speed/distance necessary).

You might wonder also about efficiency. Generally the energy efficiency of an aircraft is dictated by 1) friction losses 2) outgoing airstream velocity. The lower the friction and the slower you can push an air stream the more efficient the aircraft ((2) is because the kinetic energy imparted on the air is quadratic on speed, while the momentum, and force, is only linear in speed). That's why high-bypass turbofans are now the norm (more air at slower speeds). And why you want a large propeller surface of low speed (I expect at very large propellers you get diminishing/negative returns due to additional drag), which can be few large props or many smaller props (which have the previously discussed advantages).
Ah yes cheers to the cheeky beggars...and if they had been caught in the act? What then? Surely they'd have given up their foolish ruse and not injured any local constables for tis' just a game?
I run a system called Tech Events Network that tracks events across the US - meetup, eventbrite, facebook, etc, etc - and venues along with it. I want to help organizers find meetup-friendly venues in their area proactively. No charge, just broadcasting info.

If you're in the US, drop me a note.
Definitely. Behaviour trees are kind of a special case/evolution of regular ol state machines, but I find both useful in different situations.
This is a browser addon that bypass paywalls on several sites, including medium.

For Firefox: https://github.com/iamadamdev/bypass-paywalls-firefox

For Chrome: https://github.com/iamadamdev/bypass-paywalls-chrome