skysight-inc/HackerNews huggingface dataset:
I've been working on solar powered Peltier AC for my home. This past summer it was able to keep my living room (250sqft) at a comfortable 72F - 75F even when the outside temp was over 95F. It is crazy power hungry, using 12v 5A, but with solar its fine. The hard part as people have said is the heat dissipation and dealing with high ambient temperatures.

My newest design incorporates a few new upgrades. 1) geothermal cooling to dissipate the heat. As the ground temperature stays consistent at ~65F. Allowing me to not worry about the ambient temperature anymore 2) I moved to a 24V 6amp peltier which has a larger delta from the hot to cold side. 3) I now use a 24v ~7.6amp solar panel to power it. 4) I added a 15 Amp high-power motor driver so I can switch between producing cold and hot air. So now it will be viable in all weather conditions.

A core idea is to keep costs cheap which is why I have not added a battery to the mix. Although it would be nice as some nights are quite hot. I got the 24v panel used at $50 and the peltiers are super cheap (3 for ~15). The motor-controller/h-bridge was ~$40, but I didn't want to cheap out on that though and start a fire.

Its quiet unless I turn the fans up and doesn't cost anything to run after initial setup costs, due to the solar. My future plans for making it even better are to use multi-stage peltiers and try to leverage the hot side to produce more power. Also to add raspberry pi so I can control it remotely.
Hanlon's razor - Never attribute to malice that which is adequately explained by stupidity.
A driver allowing to map any page is like recording a magician from all angles.

The only reasonable usage of such a situation is for the magician him/herself, to study his/her own performance. And even then, it is not usually done that way.
This reminds me of the language used in Godot Engine, maybe talk to them and use this in the engine?
You're reading too much into the keyword.. in Lobster, this does never include anything twice. Circular dependencies just work, without having to pre-declare anything. I should probably rename it.
This page wasn't loading correctly from me, although I assume my privacy extensions probably blocked the content.
> If the government's records were up-to-date and perfect, the title industry wouldn't really exist

Why would a blockchain magically fix this?

> "my computer got hacked" is kind of a blanket argument against using technology in general

Many (most?) financial actions you can take with a computer can be rolled back if shown to be fraudulent, because the asset isn't stored on the computer itself. This is specifically not true of crypto assets.
I'm also from the US and visited Prague last fall. The tour guide encouraged us to try Kofola and also had a funny urban legend story about it's origin (I forget what it was). I tried it and found it...not so great :p
I wrote something very similar some years back: https://github.com/zwegner/prethon/

I can't remember if I saw Cog first, and wrote a different version that fit my needs better, or if I only found Cog afterwards...

It uses a more PHP-esque syntax for inserting Python code. It has inline expression syntax, and quote functions, which IMO make it nicer than Cog for using as a code preprocessor--it's easy to make e.g. function specializations, or loop over code blocks. It's not very well documented though, and is probably missing some nice features.
1) I think you can build webkit on Windows? Either way, webkit is available on multiple platforms.
2) It goes both ways, Microsoft only recently announced that new versions of Edge are coming to macOS in the future, and only because they are moving to Blink/Chromium.
3) Chrome on iOS uses webkit, soooooooo

What actual complaints do you have about safari? I definitely don't think it's perfect, but Chrome has it's own weird issues and inconsistencies (and is much less efficient on macOS). Chrome is widely chided for its poor memory management.
What is broken in Safari compared to Chrome and Firefox?

I occasionally hear “Safari is the new IE”, but as a designer, I could use a little developer education as to what is actually deficient.
The USSR were flying their Buran space shuttle in the 80s with full autonomous capabilities.

It could launch into space, orbit, de-orbit, fly though re-entry and land at a runway without any external control (it was designed to complete it's mission under signal jamming conditions).

It had full situational awareness and could autonomously make decisions like redirecting to a different runway or airport depending on weather and other factors.

Maybe it's a bit of a stretch to say Buran was safe enough to fly passengers autonomously, but it was in the right direction.

Compared to a self driving car where you have to detect respond to other cars and solid objects, the amount of processing power to maintain a dynamic aerodynamic flight model and fly under instrument conditions is actually pretty low.
Ah, we’re on the same page! It solves nothing for the Venezuelans.
Yeah, it's all a drop in the bucket. Fifty years down the road, nobody will care about Facebook's transgressions of today.

> How much you get paid is the key indicator of how much you are worth as a human being. That’s the game we play.

You can look at an ape in the jungle as getting the most food. Is that the worth of that ape? To the apes, maybe so. To us, it's just an ape.
Ask HN: How to move up in the career ladder at FAANG?
This is a serious question. I work at FAANG. It seems that people who joined circa 2011-13 never left and are now in power positions (sr. management and VPs).
It is incredibly hard to move up at FAANG. Uber is hitting me up, but I am not sure about them.

1) How to get better at politics and career management to move up?
2) How to make million dollars? I am on visa, so second job/startup is not an option.
The way they’ve handled the deprecation of libspotify is appalling. As you said I’m grateful that they opened their API up to use by others, but ever since libspotify got canned developing native apps around Spotify has become more and more dicey and restricted, with the most notable feature omission being streaming. Worse, they’ve been promising a replacement for years now and it still has yet to arrive.

It’s disappointing that the only truly developer-friendly music service on the market has decided to clam up like they have.
HACL*, a formally verified cryptographic library written in F*
It's really a very interesting place to visit, if only to see the vast emptiness of the test range. I went last time it was open and it was definitely worth the trip.

Particularly amusing are the ranks of bleachers sitting out in the middle of the desert (so people can watch weapons tests).
You'll have better luck finding Trinitite in Roswell, NM.

That said, I was amused watching parents handing geiger counters to their kids and telling them to run around and yell when the counter started to click more frequently.
While I really appreciate the work tonistiigi did to create the Cloud Foundry buildpack frontend for buildkit, it uses a compatibility layer[1] (which I wrote myself and no longer maintain) that only works with deprecated Cloud Foundry buildpacks that depend on Ubuntu Trusty. It doesn't work with the new, modular Cloud Native Buildpacks, and the buildpacks that ship with it are outdated (and vulnerable to various CVEs). It will stop working with new buildpack versions entirely when Cloud Foundry drops support for Trusty.

Implementing CNBs as a buildkit frontend would break key security and performance features. For instance, CNBs can build images in unprivileged containers without any extra capabilities, which buildkit cannot do. CNBs can also patch images by manipulating their manifests directly on a remote Docker registry. This means that image rebuilds in a fresh VM or container can reuse layers from a previous build without downloading them (just metadata about them), and base images can be patched for many images simultaneously with near-zero data transfer (as long as a copy of the new base image is available on the registry). As far as I know, buildkit can't do any of that yet.

That said, we do plan on using buildkit (once it ships with Docker by default) to optimize the CNB pack CLI when you build images without publishing them to a Docker registry. It's a huge improvement over the current Docker daemon implementation for sure!

[1] https://github.com/buildpack/packs
Let's get away from the 'prestige value' of a carrier and look at it more dispassionately.

Why did the carrier displace the battleship?

The battleship had the ability, with its guns, to throw explosives at a target up to a few tens of miles away. On the other hand, a carrier, with its aircraft, could throw explosives at a target up to a few hundreds of miles away. Without its planes, an aircraft carrier is practically useless.

Why do we persist in building carriers?

When we now have ships (even freighters!) capable of carrying missiles which can throw explosives at targets up to a few thousand miles away, a carrier is a wasteful use of resources.
There's a lot of situations where you map in trampolines to perform work inside a process on behalf of that process.
Show HN: U-r Messenger, an anonymous character-based iOS messenger
Mass surveillance is a favorite tool of secret police, most famously the Stasi of East Germany. If we want to avoid secret police, we should avoid mass surveillance, even if that means some criminals get away.
I really like this idea, and I think that exposing the underlying SQL schema (especially in literate programming style like that) is the next level in technical transparency.
I've been doing quite a bit of webdev recently, and I've been testing things in both Safari and Chrome (on macOS and mobile), and both browsers have their own weird edge-cases, bugs and unexpected behaviours, but anecdotally I really don't find that one is better/worse than the other. I suspect the 'safari is a bad browser' notion is based on people's past experiences, rather than accurate view of the current state of the browser landscape. I also wonder if a lot of the safari-haters are developers who work on windows/linux, and just resent having to support another browser in general.
I suggest people might pick up on that pretty quick, maybe no need to rename given some random comment. That said, maybe you want to have a gander through the various languages and see what words are used for what, and if there's a 'standard' go with that :)

Cool language though. I love everything except for the name, sorry :)
I enjoyed this opinion a lot. Code anxiety can be a real problem, but sometimes you just have to let the interns do their thing and hope for the best. Perfectionism is a killer when it comes to productivity.
I love lobsters :D
https://coincircle.com/l/50VVxbObg3
Thanks! I spent a lot of time on it for just that reason, being as transparent as possible. Here's the link in case others are wondering what you're talking about: https://aytwit.com/sql
Holy cow, are you the Quake Aardappel? That is a name I haven't heard in a long, long time...
Facebook pays Daily Telegraph for positive sponsored news stories
It works by pointing out how that state of affairs is untenable. One thing that helps a person who supports their arguments with good evidence is that their ideas eventually turn out to be more consistent than those of a person who would do otherwise. Rational arguments have a tendency to stand up more on their own. On the other hand, emotional arguments, which are based on unjustified assumptions or opinions, often turn out to be inconsistent and force their defenders to ignore contradictions that are implied by the argument.
As a bit of an aside, I posted a comment [0] on Reddit when this was posted yesterday. It links to a gallery with a lot of interesting info about Komodo dragons. Like me, you probably have at least a few false beliefs about Komodo dragons (such as the fact that they are slow scavengers, or that they are venomous or use bacteria to poison animals before waiting for them to die).

Anyone curious should check out this amazing gallery of pics/videos and captions that really blew my mind and totally changed my perception of this fearsome lizard!

[0] https://old.reddit.com/r/news/comments/b8joz9/komodo_island_...

[1] https://imgur.com/gallery/RUeB9 (credit: theitinerantnaturalist on imgur)
Fancy. But https://www.currenciesdirect.com/aff/v1/money-transfer-compa... has this: https://i.imgur.com/qaFkctU.png

https://www.mycurrencytransfer.com/apply/smart-currency-exch... also has it.
They’ve done it for previous versions as well. I think that practice goes back to Vista at the very least.
Grove (hellogrove.com) | Full Stack Engineer | San Francisco | Full-time | Onsite

Grove is a diverse, mission-driven team passionate about helping people make sense of their financial lives. We raised our Series A last summer and are rapidly growing. We are looking for a talented Full Stack Engineer to play a core role in creating an amazing experience for our customers and developing the next generation of financial advice automation to replace the archaic software that plagues this industry.

All our open roles are here: https://hellogrove.com/careers

We offer competitive salaries, generous equity, full benefits, 401(k) with employer contribution, daily lunches, and flexible work hours/PTO.

Please email me, Derek Shockey (head of engineering), if you’d like to chat more: derek at hellogrove dot com
How exactly would this classify as mob vengeance?

Negligence in critical safety infrastructure is bad faith.
I was a paying customer until I got too frustrated with the lack of a real desktop player. Forcing what should be real applications into the browser is awkward as hell.
Yes so if people want things from each other they should ask what’s sufficient motivation for the other party to continue dealing with you.

The negotiation or balance of interests will produce a sort of equilibrium.

Proof is just a good in a negotiation, and it’s pretty costly, as opposed to conjecture.

WSJ wants to be heard but not for free. The market finds the intermediate price to read their analysis. The burden is on both WSJ and the audience to satisfy their interests.
If you have a newer MacBook with TouchID, you can get similar benefits using https://github.com/sekey/sekey. Arguably better, because access is backed by biometrics (TouchID) so it's "something you are" (fingperint) + "something you have" (laptop) and quite a bit simpler than setting up GPG backend SSH keys.
IMHO, you (and me) were late for the party. Push for the green card to have more options.
OP suggested that they might add a cost per guess.
> I am a paying Spotify customer since 2010 or so... I have no qualms on calling them out on some of their hypocrisy.

This is the internet. You don't need to preface your criticism with any sort of justification.
The lesson here appears to be that the balance between feature development and fixing technical debt isn't obvious - these things are measured historically and you only know that you've got it wrong after the fact.
In fact, if you experience the exact same codebase and don't suffer the ddos, did you get the balance right after all?
I think you're looking at this from the wrong perspective. You're right that the Academy Awards don't have a monopoly so they're unlikely to succeed by arguing the Academy is exercising market power to gain/maintain a monopoly. However, this is a group of movie producers, who are usually competitors, working together to completely exclude a new participant (and new competitor) from the market for the most significant movie award. That's very clearly a cartel under the Sherman Act and very clearly an antitrust violation.
If someone troubled has no access to mental healthcare and instead receives a steady stream of negative stimulus over long periods of time thanks to fb/youtube/twitter/news media's engagement algos, what do you think the result is? Think about it everytime a racists watches a racist vid/tweet/post/show/podcast on the side bar there is a endless buffet of further recommendations. All this reinforces whatever it is they believe.

The mental health resources available for the kind of reach social media and news media have does not exist. In most places there is one mental health professional per 20k citizens. This is not going to change overnight.

So what I am talking about is reducing the rate at which (negative/controversial) info recommendation systems/engagement algos pump through the system.

That's what I mean by time out. Reduce the rate at which info flows and the amount of info flowing through the system. This can be done in many ways. Turn off real time analytics to the content producers when they pump out controversial content. Hide/delay the like/view/click counts around polarizing content. Change or remove recommendations around such content etc etc...
I think the most meta-thing here is instead of using almanacs, we’re here linking to a Wikipedia article on a pocket reference.
Read the parent of my post.
When we started, buildkit was still experimental. Personally I'd like for `pack` to be able to jettison all the code that has to deal with the Docker daemon, it's a bit of a PITA, and buildkit looks to have significant improvements in at least that area.

I'd note that the frontend there is for "v2b" buildpacks -- the previous generation of Cloud Foundry buildpacks. The CNB lifecycle has changed a fair amount from the v2a (Heroku) and v2b designs.
> .. will check locally if the browser has a Facebook login cookie

I can't believe I read this on Mozilla. I have no cookies - Private windows. What a mess.

> ..portion of our United States-based users in the Release channel will receive the DoH treatment...will use Cloudflare’s DNS-over-HTTPS

That's it. That was the last straw. And thank you for the fish.
IIRC the pilot handed control over to the copilot so that he could investigate the issue. The copilot stopped counteracting the trim.

From what I saw on that graph someone was trimming up as the plane nosedived. Take a look starting at the 23:30:53 mark. Someone was hitting the trim up button and MCAS was continuing to input trim down until the crash. The big problem with the preliminary report is the X axis, IMO. It's different on the graphs between the two flights, and there's not enough precision... but to me it looks like either hardware failure or the FO was simply not inputting enough trim up. They fought that plane all the way into the ground.

Part of the reason that the MCAS got passed regulators is that it was not given enough authority to override the pilots.

From what I've read MCAS as described to the FAA (relatively low limit on the down trim) was different than MCAS as implemented (about 4x larger movements allowed). Additionally it's not clear if the repeated down trim was by design or by bug.

I think that even MCAS in its current state is probably something most pilots could recover from as long as they know what to expect. The way MCAS works now (both in terms of the amount of authority as well as the misdirection from "unrelated" warnings) combined with zero documentation is a recipe for additional crashes.
In my last paragraph I should clarify something that sounds confusing as I re-read it: "perceived demand" is dropping, but it is dropping as supply decreases. All of the literature out there suggests that the demand for radioisotopes in medicine is growing by 5-10% per year. I think it would be much higher with a more stable supply.
Ok, so I honestly do not understand this "safari is terrible" thing. I develop a fairly large web app (it's an inventory control + MRP system for electronics, https://partsbox.io/) and feature-wise Safari is on par with Chrome. I have no Safari-specific problems. Speed-wise, Safari is the fastest at running my JavaScript code (compiled from ClojureScript).

I have firefox-specific problems, I have Chrome-specific problems, but I don't remember the last time when Safari caused an issue.
Yahoo spin-out Altaba is selling its entire Alibaba stake and closing down
> from a single data point (prior to the second crash), it wasn't obvious that the risk of continuing to fly the aircraft was greater than grounding the planes

Call me a skeptic but I have no doubt Boeing was well aware of the issue with the MCAS well before that first data point.

Even before that first crash, there have been reports in the media that claim many pilots had complained about the dangers of the MCAS.
Ask HN: External Keyboard for MacBook Pro
The 2nd & 3rd generation Apple butterfly keyboards have a lot of problems [1], and I am one of the users that has to live with a broken keyboard.

Can anyone recommend a Bluetooth keyboard that can be put over the butterfly keyboard (13" MBP in my case)? Preferably mechanical, and access to the trackpad should not be blocked.

I use my own Ergodox for my desktop, but they are not portable enough. Something that can fit above the original keyboard will minimize the footprint.

[1] https://m.signalvnoise.com/the-macbook-keyboard-fiasco-is-surely-worse-than-apple-thinks/
Grafana v6.1 Released
I think it really depends. It needs to be used in good faith. I have seen "burden of proof" requests made in the case of very obvious common knowledge type of information, which is a red herring. But if you see an outlandish claim that you suspect is not backed up by credible evidence, I don't see asking for proof as a red herring at all. It's necessary to keep people honest.

> If you think an opinion is incredibly ignorant or utterly depraved you aren’t forced to engage it by feeding the troll. Attempting to kill the bad opinion through lazy evidence requests just contributes an alternate form of trolling.

This holds up in internet discussions, but not in all dialogues. For example, scientists and politicians could do terribly stupid/harmful/wasteful things if they aren't held accountable for demonstrably false statements.
I'm all for assuming incompetence over maliciousness, but that requires a certain amount of goodwill and trust toward the perpetrator, which is something Huawei doesn't have.
The presentation to the CNCF TOC covers some of the technical details: https://www.youtube.com/watch?v=uDLa5cc-B0E&feature=youtu.be

Some key points:

- CNBs can manipulate images directly on Docker registries without re-downloading layers from previous builds. The CNB tooling does this by remotely re-writing image manifests and re-uploading only layers that need to change (regardless of their order).

- CNB doesn't require a Docker daemon or `docker build` if it runs on a container platform like k8s or k8s+knative. The local-workstation CLI (pack) just uses Docker because it needs local Linux containers on macos/windows.
...which is exactly what I said originally...

"I don't think we'll ever see another new nuclear plant constructed outside BRIC countries. "
The description actually reminds me a lot of Brio which is sold here in Canada pretty regularly—though it's a Chinotto.

https://drinkbriosoda.ca/

https://en.wikipedia.org/wiki/Brio_(soft_drink)

https://en.wikipedia.org/wiki/Chinotto_(drink)
Ruhnn, a Chinese startup that makes influencers, raises $125M in U.S. IPO
WiPhone, a Phone for Hackers and Makers by HackEDA
Jack Churchill
That sounds more similar to Swift's approach, where the compiler does aggressive optimisation to elide reference counts were possible. Do you agree?