skysight-inc/HackerNews huggingface dataset:
I've heard plenty of good chemists refer to monatomic gases (and sometimes ions) as molecules, or "molecular", colloquially, and particularly when talking generically in terms where they could be replaced by another gas. That helium is monatomic is both well understood and not especially relevant in many contexts.

He2 is rare enough that the few times I've heard it spoken about, people have usually said "helium dimer" to make it clear that's what they mean. Since that's the rare case, it's the logical one to be explicit about.
b-tree-FS has the same number of syllables, so butterFS is an unnecessary and silly pronunciation.
The microscopic oscillating part in the clock needs a vacuum. Having air around would dampen the vibrations too quickly because the mass is tiny, and the timing would vary with air pressure or humidity.
I'm not defending Cultural Revolution here (no body can). However, Googling "lost tradition Cultural Revolution" didn't give me much, I found one NY Times article [0] but it doesn't talk much on the traditions that got lost in this period.

The wikipedia page on Cultural Revolution in both English and Chinese didn't mention any tradition being lost either.

> Too many accounts that amount to "nuh, uh prove it!" and have nothing else to say.

The burden of proving what you said is true should not be on me. You said something bizarre and got challenged.

[0]: https://www.nytimes.com/2016/05/15/world/asia/china-cultural...
Distributed ledger tech startups WANTED
I have very mixed feelings about this. Let me explain:

This move from China is definitely going to bring more incentive for illegal poaching. It's just simple economics: by officially bringing a market back, profits to be made are much greater, and people will find any way to get in on the action.

If, however, if we provide more _legal_ means for people to benefit from the tiger and rhino markets, we could provide enough economic incentive for people to be invested in their survival. The big deal here would be the opportunity for private ownership (rhino and tiger 'farms' basically). People will viciously protect what's theirs from poachers and ensure it's continued existence, especially if there is money to be made by doing so.

If people are allowed to privately own, breed, and sell their tigers and rhinos, I think China's move could actually _facilitate recovery_ for both species.

But is that what China's planning to do? I doubt it given their track record and political philosophies, which means this is going to only make the extinction of tigers and rhino's a bigger problem.
You know, TimJYoung, I think I may have misunderstood what you were asking. It's still one page that loads the initial HTML layout, javascript files, and HTML templates. What I meant by "page" in my original post were front-end "pages" that just modify the content of the main container tag in the actual page. I don't need to transfer state because it's already there. Clicking a link causes the framework to destroy the content in a tag, run some javascript functions that probably make some requests to the back-end and fill the tag with the "page" of the new front-end route. The problem is that because of front-end framework supposedly-helpful automagic, unexpected things happen due to keeping state from previous front-end routes.
Well said on every point, and this has been exactly my experience traveling to both locations (Beijing / London)
Make sure it's virtualized/sandboxed, SQL basically guarantees HDD write access.
A single-atom molecule is a very simple molecule. But it is a molecule: "The smallest part of any substance which possesses the characteristic properties and qualities of that substance, and which can exist alone in a free state."

Molecular helium happens to be identical with atomic helium, where an atom is the smallest unit of an element (not a chemical substance).

Water (H20) is a substance whose smallest unit is a molecule of 1 oxygen + 2 hydrogen atoms. Helium is a substance who's smallest unit is 1 helium atom.
no nvidia eGpu?
Apple software is flawed and imperfect, but you still easily earn the outlay back in productivity within a year. So much time wasted fighting Windows or Linux to do basic tasks like reading email or running an IDE...
the NSA/CIA/3LA can't backdoor a physical switch
I agree it is unlikely to be the RTC clock at issue unless it runs a watchdog of done form. But given that they are using MEMS for the 32kHz clock it seems likely they are using it for other clocks too.
> it were possible to solve this in 2000 years, we probably would have....

That's a terribly defeatist attitude, especially for someone who is writing a message on a colossal web of copper and forged glass, powered by lightning and runic commands, who probably doesn't live under the thumb of a king or suffer from polio, smallpox, or plague, and likely travels in a chariot drawn by elemental fire and oil extracted from the bones of the Earth, and who is far less likely to die from violence than at any point in history.

There's been a lot accomplished in the last 2000 years, and plenty of that achievement is fairly recent, scientifically and sociopolitically.
Not that I particularly agree with you, but that metaphor made my day.

I'm reminded of Stephenson in Cryptonomicon spending pages talking about a main character's past odyssey to deal with their wisdom teeth as an allegory for their current relationship status.
>(unless the seal worked against air but not helium).

That is exactly the case. From the article, helium (and to a lesser degree, hydrogen) have very very small molecules and are able to slip past very small imperfections in hermetic seals.
The best kind of correct...

Do you think anyone's understanding was negatively impacted by the use of the word 'molecule' here?
at least your product is already in the place where users are going to find stuff

Along with a million other apps.
Yeah seriously. You'll have some front-end lib func converting that to 2 significant digits right of the decimal anyway. Weak argument imo haha.
> typical Chrome build today still takes about 15 minutes

Is this a typical build experience for Google devs?
Or is this more of a rebuild / core header changed ?
Here they are - they're definitely irreverent, but I find myself strongly agreeing with everything he says.

https://docs.google.com/presentation/d/1n2RlMdmv1p25Xy5thJUh...

https://www.youtube.com/watch?v=7jiPeIFXb6U&feature=youtu.be
I fee like if Apple truly didn’t believe they needed a case, they wouldn’t make and sell them.
Wow the US is worth more to FB than the rest of the world combined.
Honestly, it really annoys me how bad their recommendation algorithm is. The model became so over fit for me, it would only show one or two topics. It made the service completely unusable, and its not clear to me that they provide the user any way to counter act that. If they had some kind of content discovery with actual good answers, that would be great. The crazy thing is how much talent works there, who knows maybe their new model/algorithms are profitable for them. But in the long run I doubt it.
Few things;
Isn't it a bit odd that a hospital MRI machine room isn't being monitored for these kinds of things? I'm curious, not accusatory.

Also, this could be a potentially catastrophic tool for terrorists. As trivial as it sounds, it's even worse than a traditional frequency jammer because it renders the device unusable instead of just not being able to communicate with the outside world.

Edit: On the other hand, interesting counter-terrorism tool as well. Is there any precedent for the CIA using this sort thing intentionally?
> When it comes to pure software quality, windows is hands-down the best platform.

I've switched from mac to windows since this summer and I disagree. From the way windows defender interfers with usage to WiFi reception issues (Thinkpad 480s) to poor taskbar functionality to crappy setting screens to harder-to-read fonts, it's just not nowhere near macOS in terms of useability. But the keyboard and ports are that much better that I'm still putting up with it (while thinking about Linux).
The seal works against air but not hydrogen or helium because the molecules are so small they'll diffuse through pretty much anything.

It's really hard to contain helium. It'll leak through pretty much any solid material.
Ugh. Conveying tone on the internet... I mean it sincerely: I do wish you good luck. Please about your project on HN when you release it, I'd love to see it. While I think it's deceptively hard, but config/immutable state are fascinating areas.
TIL about `list-style: disclosure-closed;`. Makes perfect sense, but I admittedly had never really thought about it.
I don't think it is SOP or typical for HR to meet with you without giving you any indication of what your problematic behavior was (if any!). You're hearing only his side, and while it could be accurate it could also be an example of someone not internalizing the feedback they are given.
Congrats to the Cockroach crew. CockroachDB is a very interesting project, and this will make its functionality available to a wider audience.
A new study suggests organic food can help reduce risk of cancer
It doesn't because basically - the point floats. The max_int doesn't mean the largest whole number that can be represented, it effectively means how much resolution you have on the number line in every one of a very wide range of scales.
These languages all give exactly the same standard IEEE754 float math results for basic operations.
I've printed my own custom notebooks to track my planned vs. actual daily activity in 30 minute blocks, inspired by Deep Work.

This would make an excellent companion to that. The lessons I've learned from that book have been incredibly valuable in helping me work more efficiently and happily. Thanks for building this.
Ah, we don’t do code review mid-project except for very large projects. For those large projects, we just keep working in the same branch and apply the code review changes when they come in. It’s not much of a disruption.

For preliminary foundational work on a big project, where you’d have to change everything if the early work changes in response to code review, one good solution is to do an informal design review before jumping in to get feedback on plans for data model, architecture, boundaries, and APIs from a high level.
Though the name "data engineer" may be newish, the role is really an old one - and this aspect has always been the single most important part of the role.
If you make energy cheap and non-carbon enough, do you still think this is true? If the promises of the 4th gen nuke plants are realized, or controlled fusion is achieved for example, and electricity hits 5% of current price to produce (VERY hypothetical, I know), then suddenly mitigating the costs of what we do drops dramatically. CCS becomes feasible, as does creating fuel from carbon captured from the atmosphere. Still think we'd boil ourselves?
Increase in costs due to tariffs on Chinese imports?
Helium is very good at getting through the tiniest cracks due to its small atomic diameter. One uses it to find leaks in devices with ultra-high vacuum seals (e.g. in low-temperature physics) by attaching a pump with a simple mass spectrometer sensitive to Helium to the device under test and then using a small helium gun to test different parts of the device from the outside. When spraying it at the leak some of it is pushed inside by the pressure difference and can be detected by the pump spectrometer.

Hydrogen would be even better of course but it is rather dangerous when mixed with air.
US Federal officials pause trial testing stem cells for heart disease
- 2 Billion+ people used atleast one service once a day

Sad to be in that group. Although I haven’t use FB for years, WhatsApp seems to be the App of choice for direct messaging.
3 Successful Mobile App Revenue Models
So Bloomberg has something for a slow news day.
How so? `java` is the JRE. `javac` is the JDK. `mono` (I forget the .NET Core executable name) is the runtime, `mcs` is the development tool. Node or Ruby or Python all have similar splits, too. Yes, they're interpreters, but you generally need the `-dev`/`-devel` package to compile things against your runtime there, too. Their package managers are orthogonal to this (but a failed Ruby build, as an example, will often tell you you need development packages for a library).

It's not about being a system administrator, it's about understanding what the things you're installing actually do. You need development packages to develop against, rather than consume, a package. I don't understand the criticism you're making here.
> Joystick down means nose up because it's simulating the yoke of your airplane in which you pull back (joystick down) in order to "pull up" the nose of the plane.

Of course, but that's just a metaphor. Lots of people pick up a game controller having never used a joystick or a flight simulator before, so lots of arcadey flying games do it the other way, and receive scorn from people who prefer yoke-style controls. Who are, in turn, considered uptight and annoying by people who want arcade controls.

Witness endless discussion on the subject:

https://www.giantbomb.com/forums/general-discussion-30/inver...

https://battlefront-forums.ea.com/discussion/76095/let-us-cu...

https://www.supermodel3.com/Forum/viewtopic.php?f=2&t=1101
It would be an interesting attack if you needed to disable an iPhone.
Sealing against Helium is vastly more difficult than sealing against air, as air is made out of molecules of rather large atoms, while Helium gas consists of single small atoms. That is why divers watches often have a "helium escape valve". The watches are sealed against high pressures of water or air. But when worn in pressure chambers where divers live on a mix of high pressure helium and oxygen, the helium gets into the watch. When depressurizing at the end of the pressure chamber time, the helium pressure could blow the watch crystal from the watch if not released by the escape valve. For a similar reason pilot watches have special fastening of the watch crystal, so that underpressure doesn't lift it off.
Synology has rolled out btrfs in par with ext4 a few years ago for models that support it. Changing to a new filesystem is scary so I'm not surprised it has taken this long to reach mainstream. I'm glad there's still a big player like FB supporting it.
CockroachDB is looking more and more like a viable replacement for MySQL (now that they have importing mysqldump in beta)

However key management in clusters is an absolute nightmare. They need to look at Docker Swarm for how to build a usable "join" mechanism. Until then, the majority of folks just use --insecure in production.
The idea that some terrorists are plotting to ruin our phones with helium, and that we should consider it "catastrophic" is laughable.
So what's the price? For Spanner, which is perhaps their closest competitor, it takes a few seconds to find at least the list price, before discounts and such.
Spy budgets soared in Trump's first year
I don't get what macOS vs iOS has to do with processor architectures or the T2.

Why don't you see a macOS future? It can use the T2 just as well as iOS, no?
I feel like the buried lede is that the MRI operators vented large quantities of helium into the hospital's HVAC and didn't think to tell anyone.
Rational numbers don't lose precision, but the compromise is that they can get arbitrarily large after a series of calculations, even if the calculations themselves involve small numbers.

Having access to rational numbers is great and there are times they are incredibly useful, but I don't think it's a good default.
Qualys Acquires Container-Native Security Company Layered Insight
World’s oldest chocolate was made 5300 years ago, in a South American rainforest
By that logic, we're all far better piano players too.

Skills and neural pathways have training and use specificity. Even (or especially) slightly different practices can have surprisingly little transfer, or even interference.
Most of us who deep-dive on Lua/JIT are using it as a glue for C libraries.

Lua is a small language, it fits in the head with room left over for Python, which is the tool I favor for general-purpose data munging and small OS scripts.

If your case resembles "scripting over a collection of C ABI static or linked libraries" LuaJIT is head and shoulders above the competition. PUC Lua is itself outstanding.
What do you use them for? It’s hard to imagine a power user or developer not having a moderately strong preference one way or the other. If that fits your usage, I am a bit envious of your flexibility!
While I can imagine there might be something to this, it seems like it's far from being generally agreed: https://www.bbc.co.uk/news/uk-46036095.
They do have a strong hermetical seal on them, but the older ones used by Apple are still susceptible to “small gas molecules”.

They must have some seal in place and fortunately our air is Nitrogen, O2, and a little bit of Argon. These can’t get through the seal! Helium is only found in minuscule amounts naturally and apparently this concentration is so low it doesn’t matter.

Helium is special because is it has the smallest kinetic diameter of all the noble gases. You can compare its diameter to other gases here: https://en.wikipedia.org/wiki/Kinetic_diameter#List_of_diame...

Helium is frequently used in leak tests since it has a way of working through even the tiniest of leaks. Elemental Hydrogen is of course smaller, but I believe you only find Hydrogen as H2 which is a larger molecule than Helium.
> Consider sexual education efforts in developing nations

Is this a joke? Do you really think people in poor(!) nations don't know how children are made? They do. They want 10+ children, because that's their retirement fund.

If you want to make a difference, educate women about everything but sexuality. That drops the fertility rate to below replacement and raises the generation time from 20 years to 35.
It sounds like microelectromechanical devices (like the quartz oscillators that keep time in electronics) are so small, and built to such fine tolerances, that helium atoms can literally, physically jam them like sand in a gearbox. That's what the article seems to be saying, anyway.

I guess they're fine under normal conditions because typical atmospheric molecules are actually too big to get inside? I'm not clear why the particular clock that Apple used is susceptible but other ones aren't. I guess they're sealed better.
TLA+ ?

> It is used to design, model, document, and verify concurrent systems. TLA+ has been described as exhaustively-testable pseudocode, and its use likened to drawing blueprints for software systems [1]

resource: https://lamport.azurewebsites.net/video/videos.html

[1]: https://en.wikipedia.org/wiki/TLA%2B
By "PITA" I meant "pain in the ass" because you'll probably have to track down the special hoo-ha bean (I made that up) that can give you the extra protein you need, though you can probably get by with garbanzo beans but they make you fart, and yeah, calories will probably involve some high-calories food that you'll quickly tire of. That's what I meant by PITA.
Yes. In fact I would travel as quickly as I could to get the hell away from it as that kind of thing doesn't appeal at all. But I do understand the other side of that point of view.
The game industry has been waiting and expecting Apple to do something like this for years, ever since the Apple TV was announced, but it appears that Apple has little interest in the traditional games space.
”the last invader to be destroyed seems to me to be a result of random choice”

There’s a simple strategy that guarantees you won’t be the first to die: hide behind the back of your biggest buddy.

I think that would be my strategy, plus “if a bullet that’s going to kill your ‘shield’ is on its way, figure out whether you can find a new shield; if not, make a run for it.

The existence of such a strategy shows the result isn’t completely random.

(Of course, there also is a prisoner’s dilemma here: if everybody follows that strategy, the swarm would run away from you, and nobody would gain any fitness)
Helium is a 'noble element', check the Periodic Table and tell me how Helium gets to be part of a molecule. Unless a lot has changed since I was at school then you aren't going to get a lot of helium 'molecules'. It just doesn't work like that.

What I don't get is how these helium molecules diffuse into the iPhones so easily, an awful lot of helium must have to leak for that. Normally helium - balloon sized quantities - tends to prefer going skyward rather than hide in an iPhone.

But since that seems to not be the case it would be good to turn up at a concert where everyone is playing with their hand rectangles rather than enjoying the moment, then to release some helium to fix that for them...
Awesome! Any plans to monetise?
They thought they were venting outside. It only went inside because of an undetected leak.
And "hacks" that would make your FB Page go viral and stuff. I used to hear that a lot from close friends and I remember how hard I wanted to laugh but couldn't.
They're independently owned. You could argue that it was just accounting if the two businesses had the same or similar ownership while being two separate entities, but they're two different publicly traded companies with substantially different ownership. They also don't share a single board member. Can you provide some sort of substantive indication that they're operating together (today, as compared to prior to the TripAdvisor spinoff)?

For context, here's where you can see the substantial differences in ownership: https://finance.yahoo.com/quote/TRIP/holders/ vs https://finance.yahoo.com/quote/EXPE/holders/ .

And here's where you can see that they share no board members: http://ir.tripadvisor.com/corporate-governance/board-of-dire... vs https://www.expediagroup.com/about/leadership/ .
Diet Fitness App Strategic Plan for Weight Loss
Wouldn’t hydrogen only work if it was atomic hydrogen? I thought molecular hydrogen gas was larger than helium.
There are almost certainly oxygen sensors in that room. The helium concentration was probably not high enough to displace enough oxygen to trigger them. Though it wouldn't entirely surprise me if they were ignored or disabled.

Liquid helium is rather expensive and would likely draw attention in areas where it's not usually handled. Really doesn't sound like a useful terrorism tool.
Hydrogen would not be better. A helium atom is considerably smaller than a hydrogen molecule. Even if you could use atomic hydrogen, the helium atom's radius is significantly smaller due to the higher central charge that is only partially screened by the "other" electron.
Is it just me or are Apple's chips and architecture just blowing anything Intel in the Macbooks (Pro, Air, etc) out of the water?

As an aside this iPad Pro will replace our home computer in the next month. It has as many USB-C ports as my 2016 Macbook, a better screen and a way better graphics card. Plus the ability to use it with or without a keyboard is amazing.
Pentagon Wants to Predict Anti-Trump Protests Using Social Media Surveillance
Depends on which model. I got one earlier this year with a 7th gen core i5 processor: NUC7i5BNH with a i5-7260U, 2 cores, 4 threads, 15W TDP. Now you can get them with 8th gen core processors like these (among others):

i5-8259U, 4 cores, 8 threads, 28W TDP
i7-8559U, 4 cores, 8 threads, 28W TDP
i7-8705G, 4 cores, 8 threads, 65W package TDP
i7-8809G, 4 cores, 8 threads, 100W package TDP

The last two have fancy integrated graphics and only come in a larger form factor with a skull on the side.

edit: conciseness, formatting
Lol you clearly underestimate some people, but I'm wondering what makes you think that even a frequency jammer in the wrong hands couldn't be potentially catastrophic?
Kaspersky warns of hackable brain implants
what are you "no"-ing?
Yea, that sounds incredibly dangerous considering how easily you can suffocate inhaling helium