skysight-inc/HackerNews huggingface dataset:
I think the homochirality of amino acids might be what you're referring to:

https://en.wikipedia.org/wiki/Chirality_(chemistry)#In_bioch...

"The origin of this homochirality in biology is the subject of much debate.[12] Most scientists believe that Earth life's "choice" of chirality was purely random, and that if carbon-based life forms exist elsewhere in the universe, their chemistry could theoretically have opposite chirality. However, there is some suggestion that early amino acids could have formed in comet dust. In this case, circularly polarised radiation (which makes up 17% of stellar radiation) could have caused the selective destruction of one chirality of amino acids, leading to a selection bias which ultimately resulted in all life on Earth being homochiral."
"revealing a safety driver..."

If it has a "safety driver", it's not self-driving. No cost advantage.
Fearing coronavirus rumors, Shen Yun says it's not Chinese
Yeah.. It's most definitely to protect their customers from kid-thieves. The biometric data will certainly be used only for authentication and nothing else.
Show HN: Jadecy, to compute Java dependencies and cycles
A 150kb jar, usable either from code or from command line, to compute packages/classes cycles from class/jar files, and things around that (dependencies paths, strongly connected components, etc.):
https://github.com/jeffhain/jadecy

Designed to hunt down cycles and undesired dependencies, or to check them in unit tests.

Requires Java 5+ to run, not tested with Java 10+ class files formats.

Cf. screenshots for some command line output samples.

NB: You might want to use "-scycles" option rather than "-cycles", the former computing a set of (short) cycles covering all edges involved in cycles, while the later computes _all_ cycles, which can take ages if the code is a tangled mess (worse case in factorial(nbrOfVertices)).
Can you name any other mature tech which meets those standards? Do you not consider the web mature?
It is a good strategy (and an interesting product). The execution side might be complex for retail traders. Execution is particularly important because although you get a cheap structure (selling one leg, buying the other), you end up crossing the spread twice.

This sort of trade is usually done OTC or alternatively using a contingent algorithm (wait passively on one side for one leg, and fire the second leg automatically as the first leg is filled) which allows going from paying 2X spread to 0 - but the latter has the tradeoff of taking longer and potentially missing the opportunity.

I know they are sometimes called like this, but I find the naming "credit spread trading" confusing. Are these strategies different from collars? I traded credit in the past, and my immediate understanding of "credit spread trading" in this context is shorting bonds of Boeing and buying treasuries (or trading US rates) for example. It would also be a valid strategy in this case that would use credit and rates instrument as a vehicle rather than equity instruments, but not accessible to retail traders.
It says on Cappella Romana's site that "For a thousand years, Hagia Sophia was the largest enclosed space in the world."

An interesting fact to get out this rabbit hole.
You are talking about chirality. Biologically produced molecules are all of the same "handedness", but molecules produced by other means (normal chemical reactions) tend to have 50/50 chance to be either handedness (although selective reactions are possible).

So you'd expect to see both at a 50/50 ratio in a meteorite, if you see any at all. That's just chemistry.
And now CDC is doing the exact same thing in US by not testing extensively, even though they are aware of community spreads. My friends in Seattle area are in great fear.
One is reminded of pg's concept of the "Blub" language.
Even something like a major country shouldn’t always be abbreviated:

UK reports rampant student marijuana use before class

That headline has quite a different meaning if “UK” is abbreviating “United Kingdom” versus “University of Kentucky”.
I had the brilliant experience of visiting the Allen Telescope Array and meeting Jill and her husband before the announcement of their $100MM donation a few years ago. I have to say that it is an incredibly lean operation ran by the smartest people I've ever met. The @HOME project was more about being able to help handle throughput they would've otherwise just had to dump. I think it makes sense to sit back and spend time reevaluating what's been collected such that the filters can be evolved into something more efficient. I don't think they've spent time seriously trying to apply AI, yet. I'd be eager to hear their opinions on the subject.
Hiya | Seattle, WA, USA | full-time | ONSITE | https://hiya.com

Hiya is on a mission to make your mobile calling experience smarter and more relevant. We work with mobile phone makers and mobile carriers to bring this innovation to over 100+ million global subscribers and growing.

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https://hiya.com/careers
Future Supreme Court ruling: "You have no expectation of privacy in your gait or heartbeat while walking in public."
This is certainly a wakeup call for anyone who thinks that the US federal bureaucracy is immune to dumb authoritarian tactics. Hopefully this will put a damper on all of those armchair dictators who say things like, "the null policy is still a policy and deserves just as much skepticism." If hospitals had not been prevented by the FDA from using their own machines to run tests, the CDC testing shortage would not have mattered.
Light perception is logarithmic. There might well be 99% of the light hitting the plants leaves, and 1% escaping to the environment, yet that 1% will only appear a bit dimmer than the original light source.
Cool project. I'd recommend that you make your examples more accessible - I got lucky and found them in your help popup. Would be great to just click on an example rather than get info > download > upload.
Was it Little Brother by Cory Doctorow?

https://craphound.com/littlebrother/download/

(he makes most of his books available for free download)
> I'm also wondering if there might be an untapped market to help people be prepared without keeping a lot of inventory themselves? Usually there is advance notice for a pandemic so you just want some assurance that someone can ship you something when it's time. This would avoid shortages by making it profitable to keep inventory.

This is an interesting idea, but you'd need to be really careful to avoid price-gouging laws (e.g. not accept any customers after the potential disaster begins). Even then the govt might still come after you if those products you keep for people cost significantly more then the local price.
I've had some wonky PDF version of this for years I don't know why it never occurred to me that this was a book I could just buy. I can't wait to have a physical copy to reference!
Your option is not reality and you're trivializing this to the common flu.

Would you have done the same with SARS? Because it's similar to that disease (from what we know: https://www.ncbi.nlm.nih.gov/pmc/articles/PMC1287568/).

It can destroy your airway and it may even lie dormant in your brain and come back when you get another flu. Surprise! Now you're dealing with a fever and pneumonia in your 30s.

https://www.businessinsider.com/coronavirus-in-charts-covid-...

Look at the global spread map. 92,303 infected vs 48,190 recovered (and these numbers are probably WAY underreported). There are 40k people still in recovery? How many more is that going to add to the death toll? The death rate is 3.3% very much not like the flu.

And if you go get sick and need medical treatment, guess what? Hospitals are going to be backed up.

It's just an incredibly irresponsible response. But be my guest and start licking some doorknobs. I'll be quarantining myself.
> This is a great space to be working on - I've wanted tools like this as a HW engineer for a long time. Enabling remote work as an EE seems like a powerful advantage to grant to EE contractors

Definitely its has been a huge need and as an EE contractors it makes things much easier to share and handover work to your clients. Documentation gets much easier for others who join the project or extend it later on.

> nother business I've seen pop up in this space who appears to compete with you is Allspice - they're my neighbors here in Massachusetts. What do you do that they don't?

They have done some great work and its interesting to see other people trying to solve this problem too. I really liked their simple approach.

If we make the comparison;
They just offer diffing on Altium schematic file and they are download only.

Whereas, we are cloud based VCS you can view your projects and view changes on the go. But on top of that we offer visual annotation, documentation tools. Not just that we are building a part database and many other features to make it an experience for an HW engineers. So, you focus more on your designs/projects with efficient process in place and tools that take care of repetitive and time consuming stuff.

Also we have support for EagleCAD, KiCAD, Altium (schematic and layout) support is under development and will be soon rolled out.

I hope this answers your question.
Haha!

I’m home on sick leave today, a colleague just called because he’s unchecked some boxes in the CAM software resulting in the license being disabled and the check boxes disappear.

I’ve remoted in, no obvious and no hidden way to get the check boxes back, so he has to call the support line.
Google I/O has been cancelled due to Covid-19 concerns
Ah, awesome, thanks for the feedback.
You've made me look at ZeroTier. It's a bit of a shame you are being down voted because ZeroTier looks to be original, clever, and open source.

Your down voting is caused by you used the word MAC without defining what it is, so naturally people think it's a "Media Access Control Address", or a "Message Authentication Code", but it's far more complex than either. It is an address so it does perform the same function as a "Media Access Control Address", but [0] says it is "computed from the public portion of a public/private key pair. A node’s address, public key, and private key together form its identity.", and uses proof of work to prevent forgeries. Thus your statement that "MACs can't be spoofed" is correct, or at least is unless someone breaks it. The "proof of work" bit did cause an eyebrow to rise, as it is vulnerable to exponentiation drops in the price of computing.

For those still reading, my (very brief) look at ZeroTier is it does far more than IPSec / Wireguard - it solves the internet scale routing problem in it's own way, address spoofing and a number of things as well. It's undoubtedly far simpler to use than Wireguard or OpenVPN, as routing with those protocols in large networks is a complete PITA. It treats IP rather like IP treats Ethernet - as a fabric it runs on top of that unlike Ethernet connects most nodes on the planet. For nodes that aren't fully connected (like those behind a NAT, it creates paths (ie, does routing), and if multiple paths are available uses several concurrently to get the best throughput.

[0] is well worth a look if you are curious about such things. I am going to take a much closer look when I get time.

[0] https://www.zerotier.com/manual/
Link is an archive of the live page at https://events.google.com/io/
> Do you have a link to a description of what integration managers do exactly?

Dimension's page at https://matrix.org/docs/projects/other/dimension gives a simple description.

Beyond that, there's a lot more info buried in:

https://matrix.org/blog/2019/06/30/tightening-up-privacy-in-...

and the subsequent:

https://matrix.org/blog/2019/09/27/privacy-improvements-in-s...
> Kiluaea (sic?), as an active volcano, regularly has literal glowing lava occupying the caldera.

Not anymore, sadly: https://www.nps.gov/havo/planyourvisit/lava2.htm

> Beginning in May, 2018, the lava lake that existed inside Halema‘uma‘u crater disappeared and lava flows from Puʻu ʻŌʻō crater have ceased. There is no molten lava or lava glow to see anywhere in or out of the park.

(I would still recommend visiting: the road that encircles the volcano is destroyed, and parts of it are hike-able, and the destruction is fun. And the caldera is even bigger now, and the sulfur vents are interesting, and the landscape is beautiful. And Hawaiʻi is just breathtaking.)
There's billions of products in existence. I don't think each one having an "innovative" name provides any value at all. And copying is the highest form of flattery. If I had spent my life researching electricity and found out the most innovative company in the electric vehicle and battery industry was named after me I would feel quite proud
This is a real technique from the espionage world. I heard the CIA's former "Chief of Disguise", Jonna Mendez, mention it in an interview a few years ago.
There's also the potluck dinner with what sounds like all of the city...

https://www.ibtimes.sg/focus-wuhan-potluck-dinner-cpc-fires-...

(midway down the article)

I think we may not have even heard about the virus if not for this

Edit: relevant portion:

Ill-advised potluck dinner helped spread the virus

Another major perceived lapse of the Wuhan party authorities was their decision to let a large public feast go ahead in January despite the fact that there were clear signs that an epidemic was gathering pace. The local government had controversially allowed nearly 40,000 families to gather and share food as part of the Chinese New Year festival even as deaths from the virus were increasing.

It later turned out that at least 10 cases of coronavirus infection were reported from among the participants of the feast on January 18, raising fears that the event must have accelerated the spread of the infection in Wuhan.
Nah, Americans have experienced yet their fair quote of mass famine and poverty and somehow they still survived. John Steinbeck explains it perfectly.
That's not my experience as a mentor (over IRC, Matrix and other communication channels). The experience getting started with Matrix removes one pointless barrier.
I use an electric wheelchair. I'd like to see them try to identify me by gait. (yes, I'm likely more identifiable by other means)
That's fine, but I'm still curious about the costs involved.
NYC? About the same for me.
It just reads like an anti-Chinese propaganda piece.

Don't get me wrong, I think a lot of Chinese people are very disenfranchised by their government. But a lot of them love it too. But western media always focuses on those that dislike it. Which is not a balanced perspective of their people.
which is #freenode_##rust:matrix.org on Matrix (although it's a mahoosive room, so don't join it if your server is underpowered)
Note that Greenplum supports column-oriented tables. I haven't used it myself, so I can't comment on whether it's slower than ClickHouse.
Have you tried InventHub though?
> There’s loads of value in these new biometrics

For consumers, not so much. (consumers are already protected from fraudulent charges, and decreases in fraud will not pay off monetarily for them).
> The ultimate and very necessary defence of a real time system against arbitrary hardware error or operator error is the organisation of a rapid procedure for restarting the entire system.

"Just putting out the plug and stick it back in" is one common way nowadays of how to get out of an unforeseen state. It has quite some history and goes at least back to the "let it crash" philosophy of Erlang. Of course this still does not work for all kind of domains, especially when one is closer to the metal. But still, we may have found a sufficiency compromise between formal verified software (and thus, higher costs) and some kind of fault-tolerant software (increased productivity).
Yeah, what is the point of a quarantine if they give you a warning and allow you to shop and leave the city? By very nature of his description it has worked as hoped.
> You must be physically present and alive

nice, this will finally solve that extremely awkward present-but-dead user flow.
Of course it's hard living in Wuhan during this outbreak/pandemic. There are sacrifices to be made and they are the Wuhan residents. But this doesn't make China an evil authoritarian government mishandling the situation. China is doing the best it can to stop this outbreak where it stands. Yes that means quarantining the hot spot. Yes that means taking over dorms for room to quarantine people. Yes that means medical care at hospitals will be stretched extremely thin.

But what is the alternative? Letting things run rampant because you didn't want to impose upon peoples human rights? The greater good of the whole population means more than the convenience of the Wuhan people. I just hope America falls in line.

And yes, they didn't act immediately when they had patients in December. That could have been handled better. Hindsight is 20/20. But their mindset, about not wanting to start an unwarranted panic, about wanting to investigate things fully, is understandable.
Did I panic? I don’t know. I began to prepare in early February for the possibility of draconian cordon sanitaire, widespread panic, and the consequent interruption in supply after learning that in Wuhan initial warnings had been suppressed, and mass gatherings permitted during a time the virus was in the population. Because of that head start, and the dramatic R_0 of this bug, I sensed this was no ordinary outbreak.

I resumed my efforts in mid February after learning that the CDC had rejected WHO test kits, then had produced defective test kits, which, coupled with unreasonably strict test criteria, caused virtually no surveillance in the US to be done. It did not inspire confidence that mass gatherings continued to be held, and were even encouraged (e.g., San Francisco's Mayor's issuance of a statement encouraging RSA conference attendance, or the recent Bernie Sanders rally in San Jose).

Note that the failure of the US to adequately surveil, moreover its failure to respond quickly to that failure, mirrors what transpired in Wuhan. In the case of Wuhan, the national state only became aware of the problem when the local medical system was overwhelmed, and the epidemic had gone, ahem, viral.

Given the similarity between the surveillance gap in China and the US, and the failure to respond to that gap in the US, I thought prudent to continue to prepare.

I might, though, have a different perspective due to the fact that my father was head of serology and virology labs with reporting, diagnostic, and research responsibilities for animal diseases for a US state. Or, maybe a little knowledge is a dangerous thing, I don’t know. But I can, thus, recommend journalistic potboilers such as “Rats, Lice, and Men” and “Plagues and Peoples”. More seriously, David Quammen, given the background he gained in evolutionary biology from writing “Song of the Dodo”, in “Spillover” gives what’s probably the best elucidation of zoonotic pathogens.

Previous zoonotic pathogenic outbreaks have killed more than probably all wars combined. Disruption of habitat by human colonization and climate change have intersected with mass jet travel to increase the likelihood that pathogens will make it from animal reservoirs to our species.
I would argue that's untrue. Limited screen space discourages the proliferation of obscure GUI options and pushes the UX towards simple packaged tasks optimised for graphic representations - or at least representations with a strong graphic organisation, even if there's plenty of text involved.

The trend in the command line is in an orthogonal direction - more and more complex function-like options with minimal mnemonic labels, optimised for text representations and text processing.
I grew up in the USA, and My hometown newspaper offered that service. I played the interactive games. I think the content refreshed every week.
CDC botched the first test kits. There was no way to test anyway. Fortunately, FDA approved state developed test kits.
Hello friends! Author here. Happy to answer any questions about SerenityOS and its programming environment. :)
I wonder if there are some other places in the world I could visit reasonably expecting to see molten lava and all that dramatic looking stuff.
I have wondered how it is that my Mac Plus became a machine with almost no noticeable delays when I upgraded to 4mb ram, and now I have 8gb of ram, and a less responsive system. I realize my system is far more dynamic today. I just wonder if one day we'll be using systems with 4tb of ram that would be snappier if upgraded to 8tb or 16tb.

Given the nature of open source, I'd be surprised if there isn't a alternative for less dynamic, less resource req, systems. Is there a system out there that still uses fewer commands?

I don't know how to ask this next question, so please bare with me.. Are there any modern systems that don't require modern hardware, but are just more efficient versions of past systems?

I have been happy with the way I could use my computer for the last 20 years (probably earlier, too).. so are there any efforts to keep the simplicity of older systems that were adequate for most, make them more efficient, and either have "super hardware", or I suppose very cheap hardware?

Thanks for anyone who made it through my ignorant ramblings.
CitusDB is not relevant here, I believe, as it still uses Postgres' table storage, so it's not columnar. It might be good for analytical workloads, but I very much doubt it will perform anywhere close to ClickHouse.

Greenplum: I've not used it, but it does support columnar tables, so maybe it's comparable.
It still seems like they're way behind in testing compared to, say, Italy, which for a while at least was testing sick people and everyone they had come into contact with.
Vote for no more adjustments, I don't care if that's UTC, nation wide 'Eastern', DST or not DST... just leave things the same all year. I've got a slight preference for everyone going UTC with no DST so that meetings and events are easier to schedule across the world.

UTC would be great if it weren't for how everyone wants to think of E.G. 8AM or 9AM or whatever as a common start time and then uses DST to try and adjust the clocks rather than the times people do things.

The current time isn't particularly useful either, noon isn't even directly tied to the solar apex in most places (due to the timezones and more complex orbit / tilt interactions).
You can require accounts for IRC access though. I think today it's fair to require clients to support SASL.
Honest question though: Which country would handle it better?

A commenter below mentioned the US, but the reaction here in Germany has also been ridiculously slow and very lacking in both the political department as well as healthcare officials.

An overwhelming majority of NHS medics doesn't think the UK is prepared either. [https://www.theguardian.com/society/2020/mar/02/coronavirus-...)

Our lower population densities and much higher hygene standards make it less likely for a breakout to start here, but our dealing with a pandemic is at least as frighteningly incompetent as the chinese response.
No, hospitals had testing machines. They were banned from using them.
There were news that China's health authorities in Hubei and Beijing told local testing companies to return positive samples or destroy those samples during the crucial early days of the spread of the virus[1].

[1]https://www.straitstimes.com/asia/east-asia/how-early-signs-...

Political and censorship considerations aside, one possible reason for doing this could've been to ensure that the tests were all centralized and "valid" while preventing accidental leakage of the virus from local testing companies. Yet this kind of policy precisely prevented the virus from being quickly identified.

The CDC's focus on the validity of the tests and its refusal to let local hospitals test for the virus mirrors this mistake. Even if the CDC did not actively try to suppress information, it is acting too slow.