skysight-inc/HackerNews huggingface dataset:
None of what you wrote is remotely true, except for the "targets one platform" remark. Swift is very much superior to JavaScript, has better safety and expressiveness, far fewer gotchas, and has vastly better library support on iOS (how do you do Metal or AVFoundation in JS?) An ObjC developer will master Swift much more quickly than a web programmer will master React Native, which also requires understanding UIKit, so there is no hiring benefit.

Yes, React Native is a path to cross platform, but high quality cross platform apps need OS-specific interfaces anyways. So what do you save?
Growing Convertkit To $30,000 In Monthly Recurring Revenue
Even heavy water would only weigh 1.112 grams per cc (at 4 degrees Celsius).

The molar mass of heavy water is 20.0276 versus 18.01528 for regular water.
For people wanting to revert to the old favourites icon: https://chrome.google.com/webstore/detail/twitter-old-favour...
That doesn't make any sense. Wind and Solar PV have to be financed for probably 99% of the upfront cost. All power generation is like that - very capital intensive.
How is the job visa situation?
I've done lots of these kinda performance tests against all kind of dynamic sites, and higher end managed hosting services like WPEngine, etc...

Once in a while someone manage to get CDN hosting just right, but it's really rare, and it's not something you can simply automate with a dynamic site (like we can for static sites with netlify). Typically the result is identical to the Smashing Magazine Site, often a lot worse. Smashing does a good job of caching at their origin datacenter, but their HTML doesn't get cached at edge nodes. Many other sites does a far worse job of caching at their origin.

It might be true that to some degree it's an engineering issue, but if it's one that hits 95%+ of all sites built with a dynamic approach and can be completely eliminated with a static approach, then obviously it might be better to shift the balance and default to doing thing statically instead of reaching for Wordpress/Rails/Drupal/whatever for each new site...
Not by definition: a kilogram is defined as the exact mass of a lump of iridium-platinum alloy sitting in a vault in Paris (well, Sèvres). But the kilogram was designed to be the weight of a liter of water at its melting point, and then later 4°C (where water achieves maximum density).
> I would hardly call Fukushima [0] a "near incident."

I called it a "near incident" because there was no meltdown, and the issue was resolved without having to permanently evacuate any area around the plant.

Essentially they got it under control, and given the circumstances it took to get the plant into that situation in the first place, I'd say it's a flagship example of how far Nuclear safety has come.

Today Japan is activating even more Nuclear power plants.
"The Danes’ dirty secret is that its public sector has been propped up by -- now dwindling -- oil revenues. In Norway’s case, of course, it’s no secret."

Lots of places have oil wealth, including the US. But whereas in the US the oil wealth goes to enrich private investors, in places like Denmark it goes to paying for a generous welfare state, with benefits like healthcare and college education for all.
UI/UX design. Native external media integration.

Twitter does a weird thing where they crop the top and bottom of photos, requiring you to click it to see more of the image. For 140 character posts, somehow the twitter design has ended up as an cumbersome and cluttered webpage.

Interesting to think about how similar Twitter, Tumblr, Facebook, and Ello are. Knowing how easily any user base can jump ship if one starts to go down, others are ready to pick up the deserters in a heartbeat.
Dumping it to the ocean is pretty safe. Seriously: https://en.wikipedia.org/wiki/Ocean_disposal_of_radioactive_...

However, since people don't easily believe water's a very effective radiation shielding (even if there's an xkcd of it https://what-if.xkcd.com/29/) and that heavier than water metals kind of tend to stay put at the bottom of the ocean, other means of disposal might be more realistic. Recycling in breeder reactors, digging huge holes to the ground, buildings which last longer than pyramids etc.

Of course, how one defines "safely" is tricky. Perfect safety is impossible, of course. One can't guarantee that our hole will stand to the heat death of the universe - but just ensuring that the disposal will cause less harm to earth and its living beings than any other energy production method is fairly easy to do. Even windmills kill some people, animals and fauna during normal operation, so if we set "less murderous than windmills" as an acceptable safety standard, we could settle for the ocean disposal, for example.
Evangelicals will not admit this freely, this is a mentality that arises from trying to protect their values in the face of outside interference/criticism. Plainly, they believe in a kind of world that is "us against them", so in any situation they need to somehow justify the actions of their group. As a result, they are prey to the belief that born again christians cannot do anything wrong because they are moved by god himself (through the "holy spirit").
I'm mostly an Android user and now I have an iPhone 6s, received as a gift - this is actually the third iPhone I'm receiving as a gift, the first one was a 3GS. I like the hardware, the phone, its size. I like how polished it feels. I really like the photos it takes. But I consider Android's software to be superior. Others might disagree, but I have many reasons for why I prefer Android and I think iOS is falling further and further behind.
Meanwhile Wordpress has failed so completely to establish itself on mobile (e.g. SDKs developers can use to make their Wordpress content present in their apps) that whole startups like Contentful ( https://www.contentful.com ) are springing up to fill the gap
Not in America in the 1950s.
As a PM at a large, engineering-driven company, I would say that convincing engineers like you that my process was rigorous is about half the job. It's annoying but enforces discipline. The engineers don't agree to build features otherwise.
Like Kim Il Jong eating while his people starve, I guess that's the same fallacy
U233 can be used to make bombs, but when you make U233 in a reactor, the progenitor to U233 is Pa233, this has a half life of 27 days. Inside the reactor, Pa233 gets hit by neutrons and one of them will knock another neutron loose so you get Pa232, then you get U232.

U232 makes a very heavy gamma ray that makes it difficult to work with the resulting U233, that is, you get killed trying to make a bomb from it. Also the fabrication of solid U233 is difficult because of the U232 contamination.

If Thorium is used in an LWR the neutron exposure on the Pa233 is enough that the U233 produced is hard to work with. If you had a special reactor like the ones they use to make weapons grade plutonium you could make weapons grade U233.

As for the various liquid salt reactors, it all depends on whether or not and how effectively Pa is removed. The Pa + neutron reaction hurts the breeding ration by consuming both Pa and neutrons. To maximize the breeding ratio it would be desirable to separate out the Pa and put it somewhere away from neutrons where it can decay to U233. If you had a process for this that was incredibly efficient than you could make weapons grade U233.
The LIKE query '%64%68%6f%6d%65%73@%67%6d%61%69%6c.%63%6f%6d%' wasn't an injection attempt, it's just a URL-encoded email address. Most likely it was accidentally double-encoded in the search URL for some reason, so it ended up still encoded in the SQL query.
How did you buy it? No links on the page..

EDIT: Doesn't work in Safari on Mac
Not working for me either. Right click -> open in new tab seems to work for me though.
Are you comparing an experimental technology like Germany's fusion reactor to proven wind generation that is driving commercial reactors out of business?

http://midwestenergynews.com/2015/05/01/exelon-we-have-to-ha...
I never claimed my concerns were rational :) everything you've said is.
Gifted people always end up turning out average. Because they aren't special. Nearly every school catering to the middle class and up has a 'gifted' program. How many kids is that? Millions per grade. Everyone who passes through that filter gets to think of themselves as a 'smart person'. In a given K-12 grade, there are 60000 students in the 99th percentile (whatever that means) per criterion.

But that's not enough - parents want to make sure their kid is special. The kind that wins Nobel Prizes. We have to find some way to filter these million above-average kids into a few hundred people who truly make a difference. So maybe your next filter could be some competition. Being accepted to [0] means you are in the top 1500 at doing a hobby science project. We have a long series of K-12 filters (olympiads, languages, music, early university, chess, etc.) and each one ends up with its own few (100-10000) best.

We want to set up our kid for success, but the only way we can have any sort of prediction is by putting the kid through filter after filter after filter and hoping they pass all of them. And if they pass the first three and not the fourth? Then now you have to deal with the fact that our prediction says that they will spend the rest of their life with a regular family and a regular job rather than being something spectacular. And if they pass every test they meet? Well there are 50 other people who matched the same set of tests as they did. How do we select which 49 will end up being normal adults? And what if the next Linus Torvalds ends up being someone who passed some of the filters, but not all of them?

There is no predictor for success. Kids should be encouraged to try and prove themselves, but only so long as they enjoy it so much they continue to choose to pursue this during their own free time.

[0] https://student.societyforscience.org/intel-isef
I think ""more Americans" died from installing rooftop solar than have died from construction or use of nuclear power" includes all aspects of nuclear power. The "or use" would seemingly include operating nuclear plants. And given the incredibly low number of deaths in the US associated with nuclear power production, it seems fair.
Thank you for checking out the posting! We've actually killed it, but forgot to update the job description. We didn't feel like it really did a good job of assessing the candidates.

Feel free to apply without it!
Wind and solar can be built MW project by MW project, and turned up in weeks or months. You'll take years just to get a nuclear reactor approved.

EDIT: What's that Bezos quote? "Your margin is my opportunity?" Same for renewables. Your delays are my opportunity.
I have over 5K bookmarks, I mean I might be an exception but if a site has some interesting content/ideas I will bookmark it to its appropriate category folder.
You don't just store it, you repeatedly reprocess and reuse it to extract all of the valuable highly energetic material. The remainder can be stored in geologically stable underground facilities, where it is no more environmentally impactful than uranium ore was prior to being mined.
Just guessing, but I don't think this system controls the robot with the computer. It may command it, but the closed loop control is probably not happening on the Mac. At that point your interfaces have much looser requirements.

That segmentation is very similar to hobbyist 3d printers.

Looking at the solutions they sell my guess is that the system is expensive enough that adding an iMac rather than some other consumer PC doesn't change cost too much.

At that point they probably picked the platform they were most comfortable developing on. Going back to the first blog post shows that the author prefers Cocoa for developing GUI's and the bio states that he is CTO of the company.

Again, all speculation, but thats how I'll rationalize it until he tells us different.
Miss the old Twitter star?
Show HN: Apple TV Quiz App (+ Promo Codes)
Anyone who has a new Apple TV - I've built a simple trivia/quiz app and am looking to get some feedback so I can figure out what needs improving.

I built it in my spare time and tried to cut it down to the most simple idea that was still really fun but I'd like to get some more opinions from actual users.

I'm still not 100% happy with the controls on the remote so if anyone has any suggestions for how to improve it I'm more than happy to have a go at implementing it

Unfortunately it's quite hard to get feedback at the moment as no-one seems to be able to find apps on the Apple TV (you have to search for everything!) so it's hard to know what to implement next

I've added some promo codes here (now I figured out how to do it) so you don't have to spend 79p too :)

Search for:

60 Second Quiz

(although I think you currently have to redeem the codes on an iOS device or iTunes)

Promo codes:
Y69T7MWH6APE
3WLAFHW6PW3Y
RFLNK77A4AX3
Y7XTAKJ3EKLJ
A4P4J9LFK7PH
Of course that does make sense. To build a wind mill and to distribute the costs is a totally different kind of economic endeavor than to build and finance a nuclear power plant, which can only be profitable with state subventions anyway.
YAML is way easier to edit and maintain than LaTeX source.

Also, separation of layout from content makes life easier.

And also, this one has built-in spreadsheet-like capabilities.
37 smart home automation tricks anyone can do
Thorium waste has a half-life at ~100 years. We can certainly build containers to safely store that waste until it is no longer harmful.
I left because it brought up some modal popup wanting me to sign up for some mailing list.

Annoy-ware isn't appreciated.
Over capacity and in the US Hydro can easily cover most issues. Other areas may use peaking power plants or grid storage just like today.

PS: If you build more wind than you need it does get slightly more expensive, but the wasted peaks are a fairly low percentage of energy generation so there not that important. ie. If you build 5% more wind than you need the cost only increases by 5% but you need to time shift far less power. Considering how much cheaper wind is than Nuclear you can have a lot of extra capacity factor.
>I'm disappointed that kids smashed a bunch of objects that had ancient significance (by our standards of replacing laptops and phones every few years).

Uh, what? Though seasoned by local culture, pottery is just another mundane object in most historical contexts. Heck, in Europe there are even some sizable hills that were created because they ran out of places to discard their pottery. The waterways of cities like London are literally littered with earthware fragments from smoking apparatuses. Most ancient potteries and their fragments hold way more meaning to modern collectors and anthropologists than they ever held for their contemporaries.
And when you're old, unemployable, and in need of expensive dental work, do you seriously think any dentist will offer you some massive discount because of your short-sighted history of altruism? Please. Proprietary software isn't even one tenth as immoral as the rent-seeking and profiteering that other more respected professions engage in. Make your money and look out for yourself, because no one else is going to.
Is this it?
https://www.youtube.com/watch?v=AnQdP03iYIo

edit: nevermind, decided (for once) to read the youtube comments. This is Kulas Hall at Baldwin-Wallace College Conservatory in Berea, OH
> Great! I'm glad that you are volunteering your backyard as the storage facility :)

(I see you're new to HN, so your sarcasm can be excused. Just note it won't get you great responses from most HN'ers...)

You might be surprised... most major cities have a nuclear plant nearby (in the US they are mostly shut down at the moment, but are in ready state to re-activate if needed).

I live near one -- even when it was active. I've swam and canoed in the cooling water reservoir (a man-made lake), and I'm not glowing green...

They don't explode or anything... the worst case scenario would be a Chernobyl-like incident where a radius would have to be evacuated... however that scenario is very unlikely to play out in modern times (Chernobyl occurred mostly because the Soviet government was far more interested in containing the story rather than containing the meltdown, leading to a series of wrong choices being made).
That's not really how the world works though. People have de facto ownership over projects. A lot of the features are things which the project have repeatedly rejected. Very few people are going to spend time on things they believe are futile. The technology isn't the problem here, it's the leadership of the project.
The same scale as Chernobyl? Chernobyl irradiated whole countries and caused thousands of deaths. Fukushima isn't even within a couple of magnitudes of irradiation.
The article looks at the cost of energy over the lifetime of the nuclear power plant. There is no argument that energy generated through fission is very cheap when looked at that way. However that totally ignores the enormous startup costs.

The great thing about wind and solar is that you don't have to build a whole farm. You can start small and keep adding as you come across more capital.

In any case I don't see why one needs to make it a dichotomy. The entities who invest in alternative energy are probably not the same ones who could invest in a nuclear power plant because of the above mentioned startup costs.

It's not clear to me whether fission will come back any time soon but wind and solar will keep gaining in market share.
I think that there are three issues with WebCrypto that people often conflate. But they need to be looked at separately when judging the security of any particular things.

1. Limited algorithms. This is what has use using GCM instead of a stream cipher for our transport layer.
2. It allows developers to shoot themselves in the foot by not enforcing best practices.
3. It encourages crypto delivered over the web.

If (3) is your concern, then it doesn't matter how good, modern, up to date, the methods are. This objection applies to tweet-nacl just as well.

If (1) is your concern, keep in mind that there is nothing wrong with the algorithms and modes we are using. Sure we had to forego some slicker alternatives, but this is a performance hit.

If (2) is your concern then what is true about WebCrypto is true of almost every crypto library out there. Whether we use libcrypto, CommonCrypto, MS CAPI, etc, we have just as great a chance of "using it wrong" as we do with WebCrypto. WebCrypto isn't worse than most of the alternatives, it is just new enough that we all hoped it would be better than the alternatives in this regard.

So given these three general concerns with WebCrypto, you need to make a judgement about how these play out when evaluating 1Password for Teams.
We have used thorium reactors in the past but having radioactive molten salt is pretty rough on the components and drastically diminishes the life of the reactor.
One cubic centimetre of water at 4 degrees Celsius used to define one gram (or more precisely one litre -> one kilogram, which comes out to be the exact same thing) [1], [2].

Although 1 cm^3 of water is still pretty damn close to 1g.

[1] https://en.wikipedia.org/wiki/Grave_%28unit%29

[2] https://www.youtube.com/watch?v=ZMByI4s-D-Y (around 1:50, and actually the whole video is excellent)
It's a similar problem with 'Like' -- how do you 'like' a post about someone grieving a loss? FB is adding a different reaction button soon.

I think switching from Favorite is a good thing, as favoriting feels just personal, whereas a 'like' or a 'heart' is a public vote of support/appreciation. I do agree, though, that 'heart' is odd, but I can't think of anything else better.
Well... that was fast!
Anyone who has spent enough time looking at the source code of projects like Apache Thrift and React can see this problem.

Look at the code on those projects and compare it to the code on project's like Google's Closure.

It's night and day.
Anyone have idea how the decisions reached by the arbitration panel are enforced? What holds any party from not abiding by the ruling and refusing to comply?
What Braudel discussed was an assembly with an oven underneath, and a raised hearth on top. You didn't have to heat the stove -- just build a fire on the top surface (with a chimney and smoke hood directly above), and cook with that.
If you're on Firefox on the desktop, then it installs the add-on. To see which add-ons you have installed, go to Tools -> Add-ons in Firefox! Thanks for trying out the plug in :)
> It's annoying but enforces discipline.

That's funny, we say the same thing about anything to do with schedules. ;) I guess we all have our crosses to bear. That's why communication and transparency - on both sides - are so important. They can maintain trust, even when things don't go as planned. (And when do they?)
Just to be clear, the article is saying that using solar power technology from 2030 would be more cost effective 90% of the time, not that using 90% solar energy today would be cheaper by the time we reach 2030.
WeWork Co-Founder Miguel McKelvey on Entrepreneurship and Miami's Startup Scene
> It's considered on the same scale as Chernobyl [1].

Which is a fucking scandal and really pisses anybody who knows anything about radiation off.
If you can raise $1B/year for 10 years for an energy project, to build nuclear, you'd have to wait roughly 5 years to accumulate enough capital to start construction and then it'd be at very least 5 more years before you got a dime in revenue. If you wanted to deploy solar, you could buy $1B/year off a manufacturing line, start earning revenue from day 1, and start making payments to your investors.
yes, just like they filter out plagiarised copycat websites in pagerank https://news.ycombinator.com/item?id=10493754
I had forgotten that was you. I'm glad it worked out well. Thanks for remembering.
The world's first Bitcoin computer
utility scale battery storage seems highly improbable to ever be cheaper than nuclear. If we figure a pretty generous 50% loss of energy, that means you need twice as much power production to service the nights and windless days.
> If you wanted to deploy solar, you could buy $1B/year off a manufacturing line, start earning revenue from day 1, and start making payments to your investors.

IE What SolarCity is doing with their SolarBonds and the solar panel factory they bought in upstate NY.
So, this does kind of get at what gareim wrote, but how do you keep it in your pocket? By habit I've always put it in with the home button at the top. 90% of the time I want to unlock the phone when I pull it out, otherwise I'm taking it out to charge it or be more comfortable. So if I want it unlocked with the home button up, it's unlocked by the fingerprint scanner by the time I have it out of the pocket.
Marc Andreessen Is Allegedly Blocking Female Entrepreneurs on Twitter
LogMeIn has a history of buying useful products and then raising prices on them without much warning. I was a faithful customer of Hamachi until LogMeIn purchased them, upped the price, and then tried to lock me in to a subscription.
I'm saying that > 50 years is a long time and a lot can happen.

I could have also pointed at Google's Sunroof project as an example of a large company betting that solar can compete:

http://www.extremetech.com/extreme/212363-google-is-launchin...

I couldn't guess what energy producing and distribution technologies will be most prevalent in 100 years.

Advancements could just as easily be made relating to fission reactors, so I don't think it's fair to say that large power companies shouldn't invest in more reactors. But, I agree there is probably risk in investing in them.
New extremely energy-dense battery technology
This doesn't really matter to me.

What I'm curious about, though, is a far more general question that this brings to mind. How do you build a social network that sustains itself through community rather than advertising dollars? Is that even possible?