skysight-inc/HackerNews huggingface dataset:
Hyperfocal focus distance can be achieved with lower focus distances than infinity, see this table: https://www.photopills.com/calculators/hyperfocal-table

It depends on the focal length, the chosen aperture, and to some extent on the resolution of the camera.

What I want to say is, if these new lenses transmit light at a high rate (let's say 1:2.8) while being hyperfocal from 0 mm to infinity all the time, you could take pictures at night more easily without having to focus or stop down to get larger scenes fully in focus.

Thus being actually useful in traditional photography.

Landscape photography could be another application.
WWDC to Be Moved Online
Imagine what this population would also do to insurance costs if we keep on rejecting a single payer system as well.
Ask HN: Professional sports shutdown what will fill peoples leisure time now?
During the last NHL strike, many TV providers broadcasted Poker tournaments, Texas Holdem exploded on the scene.

What less common forms of entertainment do you think will arise from this current sports hiatus?
Thanks for this summary.

>The outcomes of some current clinical trials of chloroquine in China have been announced, without access to the data

Which are...?
Italian doctors forced to prioritise ICU care for those most likely to survive
> Both the United Kingdom and Singapore have aligned their IoT security plans and programs with the draft European Standard EN 303 645 ‘Cyber Security for Consumer Internet of Things’.

> https://www.etsi.org/deliver/etsi_en/303600_303699/303645/02...

About 30 pages of broad points. Judicious use of "where applicable".
Apparently it never worked properly (from https://www.tandfonline.com/doi/abs/10.1080/09636412.2017.13...):

> Meanwhile, the top Soviet EW warning commanders called OTH radar “virtually useless.”[88] Danilevich agreed, arguing that LUA was impossible before the development of satellites: “there were only above-the-horizon systems; there were no over-the-horizon systems ... These systems were not sufficiently reliable. They did not allow the reliable detection of launches. The only way to reliably determine the beginning of an attack is through human intelligence, but it is dubious that such data could be obtained.”[89] Apparently OTH radar operators would consult public reports about planned NASA space launches and then claim that they had tracked a launch on the appropriate day. But the ruse became obvious when weather delayed a launch.[90]

[88] Fischer, “The Soviet–American War Scare of the 1980s,” 502.
[89] Hines interview with Col. Gen. Danilevich, 24 September 1992, in Hines, Mishulovich, and Shull, “Soviet Intentions 1965–1985, Vol. II”, 41.
[90] Bruce G. Blair, The Logic of Accidental Nuclear War (Washington, DC: Brookings Institution Press, 1993), 205.
Kenopsia
Where are you going to find the doctors and nurses to staff the 3X hospitals?

It's not just a bed problem.
Australia has a current outbreak that seems to be progressing the same way it does in every other country. It's summer there.
Of course if you buy something, change it and start messing with other peoples lives you are breaking the law. Doesn't really have anything to do with a right to repair.
A wrapper of pandas.DataFrame to support better stock statistics and indicators
You can easily build pages that don't work without silverlight. Same for java. And you can build pages that work without javascript.
How long after "recovery" were these assessments made? Some colds, even, have a cough that lingers for months.
I am just meaning to be clear and not to stretch claims beyond what we know.

So, for example, I have a hypothesis that this is mainly baseline lung damage causing severe cases. That said, I cannot claim that is what it is.

I'm sure I have been sloppy and pushed this idea some without being clear it is just a hypothesis of mine. That said, I try and be clear with that message.
I thought I'd put something together for people working from home.

I've been working remotely since July and honestly, the lack of social contact gets old fast.
Viral reinfection is a known thing. Immunology is just, well, really complicated. One person's antibodies may have worked against the same virus their family member's did, but not against some slightly mutated strain that arrives after circulating for a month. Or frankly, testing isn't perfect and it's possible he had the flu before and never had COVID-19 at all.

In general, populations as a whole develop herd immunity to viruses reasonably quickly. This process is understood. Individual case data is always crazy.

So: 1. Sometimes, 2. Probably, 3. Yes, 4. Maybe, 5. It'll definitely happen eventually, 6. Yes, almost certainly.

And indeed, it will never go away, just like H1N1 flus have continued to circulate ever since the 1918 pandemic. But after a while, immune response and vaccination regimes will turn it into a nuisance.
Momentum comes from the interaction of forces, there's nothing that's "needed" to know. Two billiard balls colliding and a billiard ball colliding with a ball of mud conserves momentum (in a vacuum, in space, etc) the same because it all boils down to forces. F=dP/dt

That's very different from "regardless how you throw the dice it will always "know" what you did".
(Not a doctor.) In general it is possible to get the same infection twice, depending on circumstances like a weak immune system, not recovering properly after the first one etc. Whether this is true for ncov is most likely not scientifically proven yet, but even if, it is safe to assume that this happening is the exception.
The US DOL has a list of FAQs on that webpage [1], including "How is apprenticeship different from other types of work-based training models?"

For example: "Apprenticeships include a structured training plan, with a focus on mastering specific skills an employer needs to fill an occupation within their organization" and "Apprentices receive individualized training with an experienced mentor who walks them through their entire process" and "Apprenticeships lead to an industry-recognized credential".

I've never heard of a "junior developer" position that had a standard syllabus and classes, or that offered an "industry-recognized and portable credential" at the end.

Interestingly, that DOL page does link to an outline of a "Computer Programmer" apprenticeship [2], but it's rather sparse, and ancient. The only languages taught are JCL, COBOL, and FORTRAN! I guess it hasn't been used in 50 years.

[1]: https://www.apprenticeship.gov/help

[2]: https://innovativeapprenticeship.org/oc_st_post/computer-pro...
people like badrabbit need to be executed, for the good of everyone else

remember: this person (probably) votes.
Also Brazil: cases are starting to exponentially grow, and it's summer there and super hot. Even hotter cities like Brasilia are having cases.
> as a basic rule of thumb, any paper on cybersecurity that does not start the discussion with a reference attack vector and listed assumptions is probably garbage.

Actionable guidance for real world decisions is not the objective of academic research. The objective is to expand the human knowledge base (which hopefully translates to something practical at some point).

If the authors have the domain expertise to weigh in on PINs, but not on attack vectors, then that is what they should do. Let someone else draw the conclusions for IT managers.
There are many cases of "false negative" with current testing kit.
Most probably, patient who almost recovered, received false negative result and has been released from quarantine still being contagious.
Partying with neighbors definitely was a bad idea.
See also:

Brogue — https://sites.google.com/site/broguegame/ — colorful, user-friendly rogue-like available for Windows, Mac and Linux.

Streets of Rogue — https://streetsofrogue.com/ — with online cooperative play also available for Mac, Windows and Nintendo Switch.
Mapping Resources for Coronavirus (GeoJSON, US County Data, etc.)
Source here for those interested:

https://github.com/erlang-ls/erlang_ls

Specifically here:

https://github.com/erlang-ls/erlang_ls/tree/master/src
"Too expressive" is suboptimal wording on my part; the intent was to cover the criticism that Lisp is flexible enough that Lisp programs tend to evolve their own potentially programmer-specific DSLs for the given problem domain.

I guess a potentially more interesting question would be how I could identify workloads that APL-alikes would or would not work well for. In particular, are there resources where I can learn more about ways to translate problems to a format that lends themselves to APLization? One example is the substring search problem; I know about naive string search using loops, Bayer-Moore, etc., but I don't think I would have been able to come up with the APLish version of match-char-of-needle-in-haystack, rotate, and AND. Is this just something that gets picked up as one does more work with APL-alikes?
Obtain a container of medical disinfectant wipes and wipe down all surfaces of the phone for at least 2 minutes. (Clorox Healthcare Hydrogen Peroxide Cleaner Disinfectant Wipes would be one example). These wipes are in a round container, perforated and pull out through the top. Sometimes the wipes are over-saturated so I use a paper towel to absorb the excess liquid as it could be possible to damage a mobile phone if this liquid got inside.

Isopropyl alcohol on a paper towel or cloth would be an alternative to prepackaged wipes. A mix of water and bleach is an option but I don't know what the best ratio would be for this mix. I would Google the recommended length of time for application of disinfectant as it varies for what is used ie hydrogen peroxide, isopropyl alcohol, bleach mix etc.
There are some better (where better==lighter, cheaper, less training) systems for field evacuation such as the Fulton surface-to-air recovery system: https://en.wikipedia.org/wiki/Fulton_surface-to-air_recovery...

I'm sure a modern version of this system could solve the tied up hands problem, as you mention. Maybe it'd be a useful system for maintenance on a large craft like an aircraft carrier.
Full press release: https://www.apple.com/newsroom/2020/03/apples-wwdc-2020-kick...
The amount of variations are concerning. Seems it'd be likely to mutate into a different strain. If that happened it would be ravaging. People that have already gotten sick and have lung damage could potentially catch the new strain and be even more at risk since the weaker. It'd be like the 1918 influenza pandemic where the first wave wasn't that bad relatively but the subsequent waves did a lot of damage.
https://blog.ycombinator.com/yc-w20-online-demo-day/

https://news.ycombinator.com/item?id=22506013
In the context of software bundled with a device, the software should be considered accesory if the device needs it to be useful for its main purpose. Often software is used instead of a chip because it's cheaper, easier to correct mistakes, more flexible in general. But the hardware is sold, and so the accesory software should not be used as an excuse to apply the license model to physical products.
I extend the pandas.DataFrame indexing with the support of a simple DSL directive.

Hope you guys enjoy that.

For now, it only supports several stock indicators, but it is fully extendable, a bunch of new indicators are on the way.
I don't see many-world arising from decoherence, please elaborate.

Decoherence doesn't give you single outcomes, but it gives you a classical probability distribution (like an enthropic ensemble) over pure quantum states, with the pure quantum states having reduced coherence (i.e. they 'look classical').

Classical probability distributions are nothing new, we don't need a many worlds interpretation to explain the butterfly effect.

Quantum states with a small amount of residual superposition also seem fine to me, as long as you are willing to accept that the world is ultimately quantum and not classical. That we don't see any quantum effects in daily life is just because the scales are too small, similar to how we don't observe relativistic effects because the scales are too large, or how we don't observe the atomicity of water. But in all these cases we can do experiments to reveal the true nature.
Developers loved Flash: you controlled the layout, not some greedy browser vendor and their screwy CSS anti-rules, and Flash had a lot of interactive options that have be emulated in HTML browsers using ugly work-arounds. Flash just wasn't able to solve security problems. Java applets also suffered under the security ax.

Flash was based on absolute coordinates, not client side auto-flow the way browsers usually are. This means consistency across browsers. And it doesn't rule out layout engines, for you could hook any layout engine you wanted to up to it; it just happened on the server side.
But doing it on the server side means consistency: you have one and only one layout engine, not IE 6,7,8,8.5,9 and Chrome 2,3,4,5 and Safari 3,4,5,6 etc. That's bad factoring of UI and testing, a huge DRY violation at the industry level. Humans, you screwed that up! Admit it, Web is a mass labor drain.
Reusability of Facemasks During an Influenza Pandemic: Facing the Flu (2006): https://www.nap.edu/read/11637/chapter/6#59

* Finding 1: The committee could not identify or find any simple modifications to the manufacturing process that would permit disposable N95 respirators to be reused without increasing the likelihood of infection.

* Finding 2: Any method of decontaminating a disposable N95 filtering facepiece respirator must remove the viral threat, be harmless to the user, and not compromise the integrity of the various elements of the respirator. The committee found no method of decontamination that met all three criteria.

* Finding 3: The committee found no simple modifications to currently existing N95 filtering facepiece respirators that would obviate the need for fit-testing.

* Finding 4: Many versions of reusable (elastomeric) respirators on the market have facepieces that can be cleaned and reused. Some of these are available in full-facepiece versions that also offer eye protection and may prevent conjunctival transmission. These respirators can be reused by single or multiple wearers and, although they are more expensive than the disposable N95 respirators, should be considered as an alternative to filtering facepieces.
Can you help me find this data?
Next gen smartphones will ship without cameras at all, they'll just use CGI and deepfake neural networks to generate "photos" on the fly!
That's a good point. Life has translation symmetry that the SAT solver can't see. So if copies of the same region appear in your pattern more than once then you could plausibly save the SAT solver time by telling it to use the same predecessor for all of them.
Looks like they just etch pattern into a single material.
Does it even need to re-infect? They had 80 thousand cases in a country of over a billion.
WWDC20 moves online
Read 18 U.S.C. § 6002 it does not grant blanket immunity. If I testify truthfully and reveal perjury in the past I can be tried for that perjury now.

Again, this violates the 5th amendment.
Someone just reinvented the Fresnel lens?
And this disease is still very new. There are too many unique cases and difference between cases that it's almost impossible to take any conclusion.
Can't believe HN is on the panic bandwagon as well. Is the CDC recommending work from home? Is law enforcement? Any public health officials? Law enforcement? Congress? What authoritative source suggested working from home at this stage is mandated or even recommended?

What are people smoking. Crowd think sure is scary. I don't like FB and I think there should be an executive order from the whitehouse requiring anyone older than 55,immunocompromised (medically verified) or showing cold/flu like symptoms to be allowed to work from home or receive subsidized paid time off. But I don't think irrational panic and getting high on fear like this is healthy. At a macro level,the panic is doing more harm than the disease. At the individual level there are explicit steps you can take to keep safe, it is important to not panic yet take every recommended precaution.
> I think heat with humidity are more likely to dampen the spread compared to just heat

That's odd to me because I associate warm and wet with uncleanliness and festering cesspools.
Can you cite some sources for your responses to 1 and 4?
Re: 5, there's clearly a distinction between typical mutations, which have no particular effect on the virus' behavior but do allow us to trace infections, and behavioral mutations, which might allow reinfection or make the virus more or less contagious or deadly. I think GP is asking about the second kind, since they're also asking about reinfection. Maybe that's obvious, but considering that, are there sources saying that the evidence so far is that there is only one strain?

Re 6: this is an interesting question. My layman's understanding is that heat usually reduces the spread of disease in temperate climates both because the disease can't survive as well and because people spend more time outdoors and in less people-dense spaces. In somewhere really hot like Qatar, we would expect to see the opposite of the second effect; I'd think people would spend more time indoors with A/C when it's excessively hot outside, increasing transmission rates as the outside temperature rises.
How much should they have been paid? This seems like a week of pay for a pretty good software dev. That's not fair comp?
If your immune system develops an antibody based on epitopes that differ in the second strain, I would think you could contract it again. Two people who overcome a virus may ultimately derive different antibodies, and some may do better at matching the class of viruses than others.

I don't think it's very common to be that unlucky in your own body's development of a suitable antibody.

At least, this is my understanding based on a recent microbiology course I took. Immune response is a fantastically complex thing.
Plot twist: OpenSilver uses WebAsm. That's part of what makes the story so bonkers.
That's really interesting! What allows k to be so small compared to interpreters for other languages? Does it come down to the semantics of the language itself?
The laws are nothing if they are not enforced.
How do you know 2 hasn't happened?
Esports and their associated leagues have a big opportunity to possibly go more mainstream at the moment. They are well suited for this particular situation as big tournaments can be done fully remote. Some examples are The Call of Duty League announced that they will be continuing their season fully remote and I believe the Rocket League College Series is roughly already fully remote.

It's also an activity that people who are watching it can then participate in after the event.

Could be a big opportunity for some of the more accessible competitive games to be on "regular" TV or at the very least have huge live streams on Twitch/Youtube.
"it's hot [in Qatar]."

I used to live in that part of the world. Air conditioning and active cooling is pervasive there. In a sense, people's exposure to the overwhelming heat of the day is perhaps much more limited than you might expect.

There are surprisingly few cases in Africa (https://www.newscientist.com/article/2236760-we-dont-know-wh...) and Africa is a poorer continent in general, and perhaps aircon is much more limited there than that area of Arabia. Maybe there's a link.
As expected, Google I/O, F8, MWC, WWDC, E3 have all been cancelled in person by the looks of it and some have been moved online instead.

If the decision is reversed to call off the Olympics (I hope not), then 2020 is completely cancelled.
https://news.ycombinator.com/item?id=22559786
I know a lot of startups aggressively hiring for remote roles for devs. I can send you names if you're looking for opportunities (fair warning, most will be limited to US residents).
The table list is cut off for me (unless I zoom my browser right out). You could probably add:

display: block;
overflow-x: scroll;

as an inline style or to your CSS for the table (which has the ID 'example') and you'll get a horizontal scroll bar on it.
Yes Apprenticeships are like that I did a mech eng one in the UK (1980's) and we where still taught how to belt drives worked - ie the water /steam powered factories in the 17th /18th century
What's frustrating with data like that is what it doesn't say: is it OK to keep using a mask?.

Obviously what this is saying is that, once contaminated, a mask can't be cleaned and made safe. But in real use, at least at the infection density we see right now, they're not getting contaminated with use. They're just dirty. Is it safer to keep using the same mask for a week or to use it once then go maskless? We just don't know.
Regarding Cloudflare/fastly, you do need to make sure you're only allowing requests that originate from the proxy, either via IP-based firewall rules or something like CF's authenticated origin pulls [0]. Otherwise someone could find your origin server's IP and potentially perform this attack (and generally bypass your security settings).

0: https://support.cloudflare.com/hc/en-us/articles/204899617-A...
> I don't believe that 95% of new furniture like tables and couches will contain an IoT chip within 15 years. Hardly anyone is working on that.

Unfortunately not: https://futureiot.tech/ikea-sets-up-smart-home-business-unit...
> Unfortunately, actual hospitalizations and and deaths rule out a virtual epidemic so this is not a hope to cling to.

Not necessarily. In theory all the deaths could have some other cause, i.e. some fraction of people with a different underlying fatal condition had false positive tests for this coronavirus and then died of the other condition.

That's probably not what's happening, but it's theoretically possible. (It's also probable that some of the reported deaths are that, but who knows what percentage.)
Wow, I was fascinated by phreaking when I was younger and first getting into programming. Been working on mac/iOS for years and never knew that the guys responsible for the most enjoyable part of my career, the Steves, built and sold a blue box!
It was already reported he tested negative.
The purpose depends entirely on who creates/vouches for the attestation key. If the attestation key can be generated by the owner and then loaded into the secure element, then the owner can prove to themselves that the system has not been tampered with. But they cannot prove to anybody else what code is running on the system, as the owner can use a copy of the attestation key outside of the secure element to sign whatever they like. This is a good thing.

If the attestation key has been created by Intel (or within the secure element and signed by Intel), then the system can verify to arbitrary parties that the owner has not "tampered" with their own system. This creates a security vulnerability, as now overly aggressive (aka hostile) parties can demand that the owner gives up control of their own system as a condition of interacting with them.

Given the extreme power imbalance in B2C relationships, if this vulnerability exists it will eventually be abused in lockstep. Remember the days of dual-booting Windows to run some proprietary crapware? Yeah, that again, but with websites. And you couldn't just run a headless second machine with VNC, or even use too old of a monitor, depending on the business whims of the proprietary OS!