skysight-inc/HackerNews huggingface dataset:
You're not addressing the essential part of my comment. Let me clarify:

I put in place 1000 solar panels and aim them at the sun thus procuring 200kw of power. Next I use it to power an arc welder, producing 10,000 C of heat. Therefore I have used a 6,000C sun to produce 10,000C on earth.

Would a similar setup work with the moon? I don't know. That was not my point, my point was that it certainly is possible to produce higher temperature at the target than it was at source.
>How about focusing on air pollution, which is the likely emerging leading carcinogen in developing countries?

You are right, air pollution is a huge problem. But there is no reason to think we can't work on both at the same time. And I may be wrong, but my guess is that you are perfectly well aware of that.
Federal Government on Path to Shutdown as Talks Fail to Yield Compromise
Are you sure your phone has the right bands? I assume NTT DoCoMo is very fast in Tokyo, but my iPhone (even though it seems to connect at 4G) is agonizingly slow. Like sub- 1 mbps.
Popular Freelance Websites to Find Cheap and  Affordable Services
Quite a few large discussions this year:

https://hn.algolia.com/?query=ActivityPub%20points%3E30&sort...
I use the Vim browser, and I want to support the project. Let me just grab the manual to gain a clear understanding of the terms and definitions the browser requires me to understand before I render said support according to the protocol we (reader and author) now find ourselves subject to. Oh Brave new world …
Why would Chinese government ask Apple for help when they can directly get user data from ISP and Tencent? Chinese local police can read people chat messages in real time.
Interestingly Benchmark Capital backed Xfirem hired Xfire's founder, and is a top investor in Discord...
Accusing is even worse! The problem is that, while this sort of abuse is real, it's much less common than people imagining that they see it when it's not really there. I've written about this a ton in the hope of explaining why we have the rule we do: https://hn.algolia.com/?sort=byDate&dateRange=all&type=comme...
I can't be the only one out here who remembers RogerWilco
Licenses like MIT don't give "the most possible freedom". I am not more free to modify and repair the software running on an iPhone despite the plethora of BSD and other permissive licenses on it than I am on a laptop running GNU/Linux under the GPL.

Likewise if you want to commercially exploit some MIT-licensed software that I have modified and am selling binaries of, you are not more free to commercially exploit that than you would be under the GPL.

Copyleft doesn't "force" the "opening" of "source" on anyone. It's a pragmatic measure covering existing software in order to ensure recipients of that software are free to use it as they wish.

The GPL doesn't limit utility. You are confusing use value and exchange value. The GPL ensures that software retains its utility for its users.

All that said, if you want to give all your software to users under the MIT or Apache licenses knock yourself out.
Very cool experiment and excellent writeup!

You can also do some meta-analysis with all of the high speed video on YouTube. Get something like Tracker[0] to watch the barrel displacement while the bullet is travelling down the barrel. This video from SmarterEveryDay [1] provides some good examples.

I've watched tons of these vids and my basic observation is that there is some motion while the bullet is in the barrel, but as soon as it leaves you basically are left with a rocket trying to launch into the shoulder of the shooter. Even at high frame rates there's a perceivable increase in rearward acceleration once the gases start escaping.

Looking forward to future articles! Particularly with the improved accelerometer, it feels like there's a story in the gaps. I'm sure you've got plenty of ideas when you start a blog with that name, but here are a few I've been mulling about while chasing a lawnmower around the yard (some of these may be tired stories for folks into match shooting).

- Benefit of powder sorting for uniform and/or even distribution of grain size/weight (maybe via sieve or some kind of scattering method?)

- Benefit of tip conditioning in terminal ballistics (e.g. precision shaping/polishing)

- Building a press + strain gauge to push bullets through barrel to characterize impact of variations in diameter/length on energy required to make the trip.

Last bit of spam from me. I did take a quick peek at the data. It looks like the area under curve measurement more closely correlates with velocity than peak pressure, but not by much. Not sure what the data column on the left represents in the PTC file.

[0] https://physlets.org/tracker/

[1] https://www.youtube.com/watch?v=7pOXunRYJIw
It made me laugh because it caught me off guard. But never say no-one because people do weird things then go online and form groups around those weird things. LOL

100% coverage isn't needed. As long as alerts and testing aren't taking months and the infections aren't being recycled then I am happy to help a few. But I would much rather help the masses. But as you've shown it definitely won't be easy. Btw, if you just want email alerts let me know ;)
FPGA on which it is worthwhile to do deep learning costs more than the iPhone, and consumes a lot more power. Your best option starting next year will be sub-$100 Chinese chips with a TPU-like unit built in. The only one I know of is RK3399Pro, which was supposed to come out this year, but didn't make it, apparently because the die had to be larger than they planned.
Ask HN: What book you used to prepare for a technical interview?
Hello fellow HNers.

(Reposting again, hopefully I will get responses this time)

I'm trying to prepare for an eventual technical interview for a programming job. Rather than aimlessly searching for a book to help me do that I would like to know which book you guys used to help you land your next job. If instead you used a site or other resources, that would also be useful information.

I think it would be useful to know the name of the company where you got hired to see if a pattern emerges.

I'm asking this specifically for myself but I'm sure that this info could be useful to other people in the same situation.
I don’t see any where stating the organization that made the request. How do you know it’s NSA? I’d imagine it’s more likely the FBI.
Marketing is not perfectly ok, at best it alerts us to things we weren't going to buy because we didn't know about them. But most of the time it either 1) encourages us to buy things we weren't already going to buy (like the $20 shit they sell on tv) or 2) attempts to win mindshare/sales over some other competing brand, which is also wasteful because it's ultimately just a product trying to carve itself a larger piece of a relatively fixed-size pie. Or it does some other nefarious stuff like trying to boost PR of some business or sway our political opinion. And many of the methods that marketing uses to accomplish these goals leverage negative human psychology like making us feel ugly/fat/poor/stupid if we don't make that purchase we weren't going to make originally.

Open a magazine/watch tv/disable adblock/look at roadside ads and you'll see that very rarely are ads actually making the world a better place.
Witcher 3 is what I hoped Skyrim would be and despite playing an already existent character and it felt like I had way more freedom in my choices.
>A savings account with prize interest is still a tax on uneducated people.

But people aren't completely rational. Playing the lottery isn't something a completely rational person would do.

In general, people with lower incomes have less education. Even highly educated people often have little understanding of the basics of managing money.

Given that it's unlikely lotteries will go away anytime soon, I think it's okay to offer "harm reduction" methods. Even if only 10% of people participated, if they began to move up socioeconomically, it may help others develop better habits.
The influence is no good if the research isn't high quality. There are other initiatives besides labs by Google.
I think one big killer feature Discord has is that you just have to paste in an URL/shortcode to join a server instead of needing to enter an IP and create a username to join every server. It is so much more streamlined to join a Discord server. The voice quality and chat features are both whatever although I would say that Discord feels like a more responsive and less resource intensive application than something like Slack or nuSkype.

The last time I used Slack it was a giant memory hog and used a lot of CPU resources. I don't think Discord would have become nearly as popular compared to say Mumble or Teamspeak it was not also relatively efficient in terms of system resources because PC gamers are very sensitive to big resource hogs.

As far as becoming a digital retail storefront, it has zero advantages compared to the other various competitors. While the other digital retailers do have social features, those social features are generally add-ons that aren't critical to the experience. Many of those storefronts also have API hooks that many developers rely upon for certain game-relevant social features like joining a friend's game in progress.
Nothing about STDs though...
Detector is really overkill for this problem. A classifier would do just fine. For a stationary camera you don't need to know where the cat is in the frame. But hey, still a cool project. Anything worth doing is worth overdoing.
Yes? Literally? They've both embraced that, and successfully. CCP says as much: https://www.gamasutra.com/view/news/179811/EVE_Online_and_th...

Wait, are you arguing something? If so, what?
In Ann Arbor we have a range outside of town that lets you shoot out to 600 yards.
> Wrong. Stores need traffic...

That's incredibly reductive. Not all traffic is created equally. Reddit, for example, is notorious for providing awful bang for your ad buck[1].

> Discords user base is traffic.

Oh, I see, so Facebook and Google should've started online stores because of.. traffic? Of course not. If you build a (big enough) platform for free, one of the few viable ways to monetize is to do ads. Making a store is a very dubious prospect (which has not been received particularly warmly). If you're going to bring up Steam, keep in mind they had about a decade of first mover advantage.

[1] https://blog.ladder.io/reddit-ads/
If Kickstarter is a license to take millions of dollars then deliver something different four years late, why does anyone ever contribute to Kickstarter projects?
You're confusing what customers want with what satisfices them. If customers saw one bar and 3G all the time, that would lead to more complaints and worse image of their service. The carrier is doing what's expedient to reduce support calls and placebo their way into "better" service at the least short-term possible cost: lying to the customer.
As a comparison the moon and sun are roughly the same size in the sky from earth. The sun puts out about 1000 watts per square meter on a clear day at noon in summer, the moon puts out about 0.0025 watts per square meter during full moon on a clear day, 1/400000 as much.
so like that slingshot equation they use in every space movie?
I suppose it's very difficult to tell the difference between astroturfing and a group of people who feel compelled to voice an appreciation for something, perhaps notified by a "Hey I posted this to Hacker News!" message on a mailing list or a Twitter profile they follow. In this case, yes, I would fall into the category of people (as you described in your comments elsewhere) with a strong opinion and confusion over why someone would think otherwise. Except, of course for the author of the article and friends.
Sometimes roaming is throttled (because carriers charge each other crazy rates) so you may not have been getting the throughput that the AT&T network is capable of.
If usage is a measure of ‘goodness’ (whatever that is), then PHP must be the best programming language the world has ever seen. And we know it’s not.
It’s tragic because culturally I’ve heard Taiwan is more similar to China of old: KMT refugees fled to Taiwan from nearly every part of China, bringing their food and culture with them. And there was no cultural revolution in Taiwan, so they retain more of the politeness and traditions.
LLVM is an example that this black-and-white view of the world does not generalize.
Yeah this is all rather confusing...

This boils down to a moderately heated BB receiving an large stream of moderately powered photons and either rejecting them or first absorbing and then radiating them away at the same pace without changing its own temperature, regardless of how many photons are coming in.
I feel like if Discord had a default white theme and took out the gaming-specific references, it could easily be a better choice for business comms than Slack.
It's a little weird reading about people not catching on to quasi-space, not just because I'm not an especially good gamer and I got it no problem, but also because I cannot fathom how anyone could actually place SC2 for any length of time without it. Travel in SC2 is a slog.
I'm bullish regarding twitch (Amazon) and Discord. Too bad I'm not a VC or have any money or way to monitized my knowledge.

Do I use either service?

Not often, but I have accounts. When I reconnect to my gamer friends / clicks they all use these services.

I have not felt compelled (peer pressure) to create accounts on any cloud provider in a long time. Both got me to sign up.
Some fun : An Apple Event, but with Bad Lip Reading
> For a long time I sort of assumed that the advantages of living in a democracy are sort of self evident (provided you live there), I apparently was wrong.

If you are a cynic, the best part about democracies is there is a much lower chance of violent overthrows - much easier to just wait it out and vote the current leaders out next election; barring an extremely corrupt leader whose existence is irreparably damaging the country - and that’s pretty much one of the few good things about it.

Leaders trade absolute power for not having to watch their backs as closely.
We can appreciate that one of us was patient enough to set those burning desires for power aside and allow his dog to communicate that he misses him, and he has to take a poop.
Context awareness is crucial in AR
I think Scott knows that most of these other password managers have been audited, and I know he knows audits are of varying quality and are virtually never conclusive, so I'm not sure what he's trying to say by pointing Bitwarden's audit out.
One of the deepest ironies of our current situation is that the modes of communication that enable today’s authoritarians were first dreamed up to defeat them

If you want to find corruption, then "Follow the money." If you want to find authoritarians, you can follow the flow of fundamental things in much the same way:

- Who is doing the silencing?
- Who is engaging in coercion?
- Who wishes for the power to coerce?
- Who is using violence?
- Who is distorts the truth to push agendas?
- Who eschews the universal for the momentarily convenient?

The answer nowadays is the same answer as in other times and places: angry, toxic parties who tend towards the far ends of the political spectrum, both left and right. It's the fringes that want discourse to end and take normal people for an excursion into chaos. It's the fringes that want to roll the dice for their chance at power.

The best thing to do is to let people have their voice. There's no authoritarian nonsense, no matter how virulent, which lasts forever and is immune to general good sense. It might take awhile, but people eventually come around.

A note of caution: there are a lot of villains who thought they were on the side of good, who turned out to be the opposite. When you've given up on convincing, and you're starting to shout, to hate, and to want to coerce people, you're probably on the wrong side of history.
Study links early puberty in girls to chemicals in shampoo, toothpaste and soap
Something's missing here.

Computers have conquered scale. Before cheap computing and networking, large companies had trouble getting out of their own way. There were inefficiencies in companies that got too big. Most of those problems seem to have been solved, and the intrinsic limits to corporate growth have been removed.

So now the US has three big banks. Three big drugstore chains. Three big delivery services. Three big cell phone companies, if Sprint and T-Mobile get to merge.

Big companies don't have to have regional subsidiaries any more. In the Bell System days, AT&T had about ten regional operating companies, each with somewhat independent management. Today, they don't bother. Amazon is run as one big company.

In the US, government hasn't really gotten into this in a big way. Too many governmental units with their own local authority. China, though, or the UK, where the central government has total authority...

(This is not about Trump. He's an old guy who does things the 20th century way - broadcasting to large numbers of people and hands-on project management. When we get someone who's similarly authoritarian but understands modern scaling technology, we'll have a real problem. Peter Thiel, maybe.)
I searched the comment thread for the word "notepad" and found nothing...

Bring a couple of notepads and pens and take notes relentlessly. Stuff that you think you'll remember later is likely to slip away very quickly if you don't write it down. When you have notes, it is much easier to recall other details.
Looking forward to the follow up article. I broadly mentioned some of the relevant bits but would be so much better to have it tied to more concrete examples. Like maybe subjective quantification of recoil or various hybrid configurations.
To complicate matters, not all iron should be considered equal per units mass, some forms of iron are considerably more bio-available, and in general the forms provided as supplement on cereals in are on the low end of bio-availability.
I also don't remember having an issue discovering it, and I'm also an average gamer, but I'm taking the article at face value when it says that this is a problem for many players.
What's your explanation for why iOS does the same thing?
> Gamers are a heck of a lot more price averse than corporations

Aren’t gaming computers super-high margin?
This seems like Apple was borderline admitting the bars are a joke:

https://www.wired.com/2010/07/apple-claims-iphone-signal-los...
Elsewhere in the thread is people talking about how a business tried to do away with "on sale" shenanigans, just listed reasonable prices, and got fucked horribly.

When it comes to anything marketing/sale you have to assume the answer to weird messages like that is "because thats what the consumer wants to see". They want everything they buy to be on sale. They want their toilet paper measured in make believe units. They want me to say "yes we have an option to record that credential, it's just not turned on for this demo" rather than "yeah we can rename the heading of that textbox during implementation" during a software demo.
Yep. All 3 of them
People only care about the bars after they notice calls dropping, and we assume the phone isn't lying. Then we get extra mad when we have 4 bars while calls drop.
> That's not the solution, that's the definition!

A legislature passing laws is not authoritarianism, but is instead the normal functioning of a legislature in a representative democracy, whether or not one agrees with the laws themselves.

From https://en.m.wikipedia.org/wiki/Authoritarianism

"1. Limited political pluralism, that is such regimes place constraints on political institutions and groups like legislatures, political parties and interest groups"

Authoritarianism is, among other things, about the head of government constraining the legislature from performing oversight of the head of government.

It's about the head of government being effectively above the law, either by the law itself being changed to codify that, or by the non enforcement of laws against the head of government when they break them.
The linked article is correct and the arguments are well known and accepted in the physics community and have been for a long time (much longer than Randall Munroe has been alive).

It's interesting what bothers different people. While many of the statements in this thread are probably wrong, not many of them bother me. But I find the lack-of-self-doubt and appeal-to-authority in your message to be genuinely offensive. Where does your certainty come from?

With that out of the way, could you give some links to well known arguments that you refer to? Specifically, I feel certain that one can start a fire with sunlight reflected from a room temperature mirror, and don't understand the difference between a mirror and the moon within Munroe's argument.

His conclusion might be correct (in practice, you may not be able to concentrate moonlight enough to start a fire) but I don't think the details of his argument can be. I currently don't believe that the temperature of the reflecting surface can be the limiting factor, and I think this is central his argument.
I assume you are referring to communism implemented by the Soviet Union or something along those lines. That was still central control of resources and power. The only thing that was communistic about that was how it was applied to the lowest rungs of society.
> The built in offline Android speech recognizer is really bad.

I totally disagree. Compared to Sphinx it is still lightyears better.

To wit I use it for my android based home automation voice recognition and even from a distance with background noise it still works about >90% accuracy. My original tests with Sphinx in a similar environment garnered about 30%.
Bad URL; points to HN home page.
> if you sell it on Steam you can't sell it for cheaper elsewhere

My understanding is the actual rule is a bit narrower than that. You can't sell _Steam keys_ cheaper elsehwere. If you sell it as a non-Steam game they don't have any input on it.
I agree with your concerns. It would also be significant as to how the CEO introduces the "friend" if at all. In business meetings it is usual to introduce everybody to everybody and indicate in what capacity they are attending the meeting. So a silent shadow would raise eyebrows at a minimum.
I still think that the majority of Electron apps can and should just be PWAs. Most like Discord pretty much just wrap their webapp anyway.
Views on savings tend to swing extreme in the US, just 13 years ago Bernanke warned against "the savings glut" and the negative effects it was having on US economy.

https://www.federalreserve.gov/boarddocs/speeches/2005/20050...
Why we are after Prime numbers and not to discover where soul goes after death?
Inundated with Camp fire survivors, Chico is a ‘city within a city’
If anything, the current government has restricted the use of this law to a handful of agencies. One bureaucrat I know of -- in the Postal Department -- had been abusing this for a few years.
It works until the gravy train stops then you have a problem.

Democracy has many problems but it’s fairly robust vs discontent. Got a problem? Try to vote out the people you believe caused it. It keeps violent overthrows at bay - most of the time.
Yep I also don’t care.
It’s a waste of time.