skysight-inc/HackerNews huggingface dataset:
The unit stores 40 kWh and can generate 5 kW from the fuel cell at an efficient of 62.5% and an additional 5 kW boost from a battery for short intermittent peaks. So it will basically take 5 days to use all of the stored energy with no charging if you are running 40 amps of continuous loads at 120V. That’s pretty good. Not enough for a stove or electric heat but definitely enough for all your lights and appliances and a small air conditioner.

What is great is the 30 year
Lifespan vs. 5 years expected from batteries in grid scale storage applications.

80% charging efficiency and 50% round trip efficiency yields 62.5% generating efficiency. To charge 40 kWh at 80% efficiency would take two 10 hour days with 9 three hundred watt panels. But you’d want to power your loads those days too, so probably a 20-25 panel array would be an appropriate size. 25 three hundred watt panels is $8k CAD. On top of the $22k USD for the hydrogen storage. Pretty decent setup for $30k!!
>Key positives for a company are reduced cost of office space and ability to draw upon a wider, cheaper pool of potential workers...[real dollar values]

>Key negatives are reduced productivity due to lack of supervision, difficulty of face-to-face meetings with clients, difficulty of training younger staff.[hard to measure]

Just throwing this experience of mine out there, when faced with actual dollar figures and hard to measure, vague outcomes, companies that I've worked for have nearly always acted on the dollar figures.
Inspired by this post and Something I’ve slowly been coming around to:

“Silos probably aren’t the problem. Silos with no conveyor belts between them probably are”
At my company, we have a stand up with Between 15-20 people. Personally, i think everyone is kind of disengaged, and nobody really knows each other. Everything is done remotely obviously because of COVID. The founder believes in working together in the office, so remote working may not be embraced.

So I would add what I learnt to the list: Keep stand ups small, between people who are actually working together on a specific problem/ product.
But golang's CGO does not link with msvc compiler right?

Are they planning to change this?
Exactly the same thing happened to me! I only used to play games like civilization, XCOM etc and had zero interest in shooters. Now my job includes management and got a lot more stressful and I also got into FPS for the first time ever (Half Life 2). I’m absolutely terrible at it but having to think less makes it much easier to focus on when I’m tired.
I've done this on hiking trips. Passing by a cellar door during the day, decanting into PET, then savouring it over the next few evenings.
> A PM will make it their job to make sure it gets done, if there is no PM the unimportant stuff will fall by the wayside.

You will always need to spend some time project managing your project even when things are not as process heavy.

You still need to make sure that timelines are met or flag if they are not. Keep dependencies informed, push/remind other teams you depend on to fix a bug, add the feature they promised. Communicate with management to get more resources, etc.

A PM can do all of those things with a bit of input once in a while from engineers.

These things only aren't important if you neither have timelines to meet, have no dependencies, and aren't accountable for the success of your project. Outside a hobby project outside work I'm not sure we ever have that luxury.

The article doesn't talk about other roles, so maybe where OP worked these things would have been assisted by other roles, e.g. the product manager.
Maybe from that perspective it's not clear to the engineer what value project managers provide but I feel it's a bit of a limited perspective to say a role that can dedicate their time to tasks of type X isn't of benefit to those who'd otherwise need to do these tasks.

I mean would you say the same about customer support? About getting clarity on compliance/legal/finance (via asking external council)? About internal developer tooling? There's a point where an engineer working on a product may need to do all these things in addition to the building. But you cannot claim that it'd make no difference to the engineer's efficiency if they could delegate those things to others.
JavaScript Database (JSDB)
MMT has nothing to do with any kind reserve currency status. The primary mistake most people make with MMT (and one which is continually enforced by both sides of the political media), is that they think it is a policy choice, or a "kind of thing a government does".

If nothing else, please takeaway that MMT is a _framework for economic analysis_. You can apply it to any economy, you can use it to look at any policy decision, and you can work with this tool if you're a conservative or progressive. I find a lot of value in using it to understand China, Japan, emerging markets, economic history, etc.

With relation to the original topic, the answer through an MMT lens is very simple. Nominally, there's no limit.

A cornerstone idea of MMT is that a currency issuer can always purchase anything for sale in the currency that it has a monopoly over. Examples of these monetary sovereigns include the US, the UK, Japan, Australia, China. It does not include the EU, or most emerging markets (who effectively use another government's currency).

The implication of this is that a monetary sovereign government has no binding constraints on the amount of debt it can issue (it can of course issue debt to itself if no-one else is around to buy it, i.e. Treasury -> Central Bank).

Now that's not to say that government borrowing has no real limits. The most useful constraints to look at are real resource constraints (possible supply of goods and services), and external constraints (do you need to pay something in a currency you can't control?). If the government is purchasing more goods or services than the resource constraints are available to supply, you'll see an appreciation of prices (inflation).

Simply creating more dollars doesn't lead to inflation. Fiat currencies are just units of account (think score points), not some kind of commodity. Japan's money supply has quintupled since 1990 to 2020 (from memory), while the consumer price index has been roughly flat, and the USD/JPY exchange rate has been roughly rangebound (wide range, but not a monotonic increase like one would expect if using intuition )

Rushed for time, but happy to discuss/debate points of contention.
We always run standups in the same way. What did I work on yesterday, what am I working on today and finally impediments or help required as well as general organizational stuff that might impact the team.
This is a great way to find out if you are talking to a bot or not :)
Helium is lighter than air, argon heavier.

Important safety difference. You'd still need to be careful, but unless you're lying on the floor...
I can run Visual Studio 6 just fine on Windows 10 - the only thing I needed to do was not install certain features and disable the old Java version install/check, and that's it. Windows is insane regarding backwards compatibility.
Smart Home Devices for 2021 – PCMag
switching isn't just worth it, I would say its mandatory.

there has been no reason now for years to start any new project in python2, and since it went EOL last year you would have to be crazy to use it.
Well, Drupal has multisite capability, too. I don't think using multisite is actually that good an idea. Having two separate websites be dependent on the same codebase is very prone to cause serious life cycle problems. I'd advice against using multisite on WP or Drupal.
When I was at the office, there were always two or three people who stopped by my desk every day, and just wanted to talk about some BS thing. Now with work from home I never hear from them. Because they realize that this was non-work related and if they send me an email or chat, that is going to be on the record
Here's hoping that state level and non state actors make a huge mess of everything we have now so everybody can sit in the corner and have a big think.
Arch is why there's a PEP saying not to do that.
I wonder/hope (if) it is real
I ran 2to3 on 1 of about 200 modules at my workplace codebase and it took me about an hour to run 2to3 and fix up the leftovers in that module.

Now do that for 199 other modules and it becomes much more work than “just run 2to3”.
Jeff Bezos and Amazon do not want their workers voting by mail on unionization
and that just makes you wonder why they expect students to keep paying them to do courses they wont even do the basics to ensure they are relevant and useful.
Huh. I didn't realize this was a local/ Oregon thing and had assumed it was country-wide.
Where is that? My only other living experience outside of America has been Europe, and Europe seemed to start later and stay later compared with America(sans SF, SF is a special place where everyone goes to bed early and wakes up late).
I use tabnine and it does a pretty nice job by using AI to re-score the outputs of (language-server + similar-words-in-codebase).
You’re talking about RAIM. But you’re also required to check NOTAMs, where these tests are documented, under the “all pertinent information” clause of the preflight regs.
We use scrypt for password hashing. From the scrypt paper (which keep in mind is assuming hardware from 2002, and isn't assuming an attacker is using ASICs which have been developed since then), the estimated cost of hardware to brute force guess an 8 char password in 1 year is $4.8 million with our chosen parameters. [1]

Ultimately we strongly recommend that developers using the end-to-end encryption mode of Userbase recommend their users use a password manager, since losing their password means losing their data (and we try to make this extremely clear to any developers using Userbase via the admin panel and docs). A password manager randomly generating passwords makes this a non-issue.

But alas, we do recognize not everyone will, which is where scrypt comes in to play.

[1](pg. 14): https://www.tarsnap.com/scrypt/scrypt.pdf
Jeremy Grantham says $1.9T stimulus will make the stock market bubble even worse
Yep. Completely unrelated to capitalism.
I remember first learning about Whitehouse.gov running WordPress back in 2018 when The Council of Economic Advisers published a paper[1] that linked to our website as a reference[2]. The paper was a single PDF file that resided in a /wp-content/uploads/2018 directory on Whitehouse.gov. There are government websites[3] that link to this PDF file that now returns a 404 because the new Whitehouse.gov only appears to have an uploads folder starting with 2021. Poking around, I found the Archived Trump White House Website[4] that still houses the PDF in the same /wp-content/uploads/2018 directory.

I wish the new Whitehouse.gov website gave a more descriptive 404 indicating the change or better yet, perform a 301 redirect so the original Whitehouse.gov link[5] works.

[1] https://trumpwhitehouse.archives.gov/wp-content/uploads/2018...

[2] https://www.last10k.com/sec-filings/unh/0000731766-18-000005...

[3] https://www.ncbi.nlm.nih.gov/pmc/articles/PMC7357013/#idm140...

[4] https://trumpwhitehouse.archives.gov/

[5] https://www.whitehouse.gov/wp-content/uploads/2018/03/The-Pr...
But Dev's are the people who had issues with WP. WP has been given this awful image but when you can buy a fully functional LMS system for $69 with 6 months support, you just can't beat the value.

Want to ensure people don't laugh at your WP site - use Hide My WP. You block most common intrusion attacks such as PHP injections, you see where the attempts are being made and the site works. Need to convert the whole thing to a PWA? There's a plugin for that which will do in in minutes and cost $30.

It's like the beer/wine connoisseurs who insist that the 'common' option is just not good enough for them. But $9 wine or $100 - most end users don't know the difference.
Chrome does not have Arm64 Linux packages. On Pi I have nice browser in repo patched so hw video acceleration works.
WAAS won’t help you when the GPS signal is being jammed. It’s ground-based navaids, pilotage, or stay home.
The Fastest Growing Sectors of Startup Fundraising in 2020
I didn’t write the article. And I also don’t think it’s a particularly usable OS either. It is, however, a very interesting one and interesting history.
Same way a shell script specifies what interpreter to run, maybe? Meaning some form of standardized comment header.
I guess I’m lying to myself too then. My productivity has doubled as well.
> the CDC recommends giving children up to 8 years old water with at least 2mg/L [1].

Actually, the Wikipedia article says the opposite (the citation it gives is a dead link, of course)--it suggests to parents that they should be careful with having children use fluoride toothpaste or water with > 2mg/L of water.

> There are plenty of places with more than 2mg/L in the US and Kentucky has places over 4mg/L [2].

If you read that study carefully as well, that's talking about the natural fluoride concentration of well water, not fluoridation within water treatment plants. (Another reason to generally prefer municipal treatment plants as a source for water: they are more likely to follow more stringent guidelines for water contaminants than individual wells).
Indeed... they pay for ok bourbon what I (US citizen) pay for above-average scotch.
That seems like a reasonable concern to me, and something that could apply to almost any communications that are on a regular schedule, whether it’s a daily team meeting or an annual review with your boss.

My father said something to me when I was nervous before my first annual review in my first job, and it has stuck with me ever since: nothing anyone says in that review should ever be a surprise. Whether it’s good or bad, if your management are doing their job, everyone who needs to know about it should have known when it became relevant, not on the anniversary of your employment.

I suspect there is more value in some types of regular but short technical meeting at the moment, when many colleagues aren’t in close proximity at work and ad-hoc informal discussions are less likely to serve the same purpose. But as someone who’s primarily worked from home for years, I’d usually still prefer to arrange a group call or physical meeting with whoever actually needs to be there when there’s something specific to discuss, rather than assuming in advance that any particular tempo will be the right one.
Wikipedia isn’t correct here. PHS now recommends an optimal fluoride concentration of 0.7 milligrams/liter (mg/L). In this guidance, the optimal concentration of fluoride in drinking water is the concentration that provides the best balance of protection from dental caries while limiting the risk of dental fluorosis. The earlier PHS recommendation for fluoride concentrations was based on outdoor air temperature of geographic areas and ranged from 0.7–1.2 mg/L. This updated guidance is intended to apply to community water systems that currently fluoridate, or that will initiate fluoridation, and is based on considerations that include:

https://www.ncbi.nlm.nih.gov/pmc/articles/PMC4547570/?report.... (Public Health Rep. 2015 Jul-Aug)

Which goes on to say: For many years, nearly all of these fluoridated systems used fluoride concentrations ranging from 0.8 to 1.2 mg/L; fewer than 1% of these systems used a fluoride concentration at 0.7 mg/L (Unpublished data, Water Fluoridation Reporting System, CDC, 2010). When water systems that add fluoride implement the new PHS recommendation (0.7 mg/L), the fluoride concentration in these systems will be reduced by 0.1–0.5 mg/L, and fluoride intake from water will decline among most people served by these systems.
Is it a sealed system or do you need to top up water? Routing plumbing to the unit might be challenging in home environment, and I presume it might need treated water to keep its electrodes healthy
Exactly - how about measuring the existing amount of ewaste they have created with their curmudgeonly non-standard adaptor changes.
Hindsight might very well be easy in this case, but I cannot think otherwise than finding the Python developers to have been ridiculously naïve in how they handled this, and foolish to even begin it from the start.

The minor improvements of Python 3 did not warrant breaking backwards compatibility and most could have been handled in a way that would not break it opt-in directives.

The very swarms of users that chanted “just upgrade” as if that not incur a significant cost also seemed ridiculously naïve to me, not understanding the real cost that large projects have by having to rewrite very extensive codebases and dealing the potential regressions that that might involve.

Everything about the switch, from it's very conception, to it's execution, was handled in a veritably disastrous way by the team, that really did not seem to appreciate even a fraction of what obviously is involved with projects that have millions of lines of code and of course would rather not have to rewrite that all.

This is why many projects such as Linux, Windows, Rust, Cobol, Fortran, C, and C++ take backwards compatibility quite serious. Serious enterprises do not like to invest in something if it mean that 10 years later they would have to rewrite their entire codebase again.

Even on my home computer, I simply do not have the time to rewrite the many Python 2 scripts that have written over the years that run my computer. — it is cumbersome enough that once in a while part of my desktop stops functioning because my distribution removed a Python 2 library which I had relied upon as a system library that I now have to install as a user library but that was hitherto quite easily fixed.

Do these men think that time is free?
> but it will lead to a steady decline in the value of the dollar vs other currencies.

That would be true if the other currencies weren't printed like crazy also. Have a look at past year's increase in M2 circulating supply of the EUR or GBP. They're very similar to the one of the USD (percentage wise). That might be the reason why the dollar didn't collapse compared to them. The dollar (and the other currencies) collapsed though, when compared to assets that didn't increased in quantity at the same pace: real estate, stocks, gold and bitcoin. None of which is part of the CPI, hence the low reported inflation in the developed world economies.
Your comparison couldn't be worse. COBOL is having problems not because of the language, but because of the code created 50 years ago. For all its disadvantages, COBOL is in fact one of the most successful languages of all time because it has allowed businesses to run their software for the last 50 years. That's why it won't go away, even though no one in their sane mind would create even a new line of software in COBOL.

Python decided instead that their customers were of no value, and all the millions of lines of existing Python shouldn't continue to run, even though it would be trivial for them to continue supporting 2.x syntax along with 3.x. I think it is one of the most insane decisions ever made by a mainstream programming language.
"Toxins" is such a broad category you can say just about anything about it. I have trouble taking any health advisory seriously when they only talk about nonspecific "toxins" instead of naming the compounds.
Photos showed troops with no social distancing and more than a few not wearing masks properly or at all in some cases. Particularly when they are not actively on duty.

And these estimated 150-200 cases are out of 25000 troops, so maybe just under 1%?
Gareth L. Powell's “Embers of War” TV Series in Development
In the migration I was a part of (probably one of the larger ones, period), I think something like 90% of code could be migrated by automation. And of the remaining 10, most of it needed only trivial human oversight.

That remaining two percent had a lot of painful things (truly, I have some stories), but "the overwhelming number of use cases" was trivial.
I would love to know why Midori failed and the reasons why they decided to discontinue it. It would be a great war story to read (if a Microsoft employee was allowed to write it up).

I love the idea of starting a new modern OS written from the ground up with security and safety in mind sound.

However, it looks like Microsoft took a different direction with WindowsX. Instead, it looks like they have taken a bold leap and hacked out all of the Win32 guts from Windows to make it a Chromebook competitor. And the talk on the town is, further down the line, they will re-add Win32 back in as a virtualised service (i guess kinda like WSL2) so its completely sandboxed from the rest of the OS.
Show HN: Dadadash – self-hosted office application suite
Well, I didn't know what it was, a nice 3 minute video can be found here: https://www.kickstarter.com/projects/flipper-devices/flipper...

Its a utility tool for developers/ techy people, it can remember RFID cards, car key signals, plug into computers and emulate a keyboard, has GPIO pins for connecting to other hardware, and lots more.
Let’s say a half filled bottle lasts 4 days in the fridge.

The article doesn’t mention much longer a transfer to a half-sized bottle lasts with very little space for oxygen?
This comment is a good reminder that you don't need the argon if you just drink the bottle.
They're not public yet.
There's plugins and WP developers galore. Actually, for $89.99 per month you can have a team that watches and fixes your site as and when things go bad. All of the above does not appeal to the masses. Hide my WP takes away the security risk in minutes of adding the plugin.

It is amazing how tech people are so far off from understanding real, everyday non-tech people and their needs.
Working remotely does not stop collaboration. I have been working primarily remote for the past 12 years. I meet with my team every day for standup and am in constant contact with team members throughout the day, sometimes pair programming or helping to debug issues.

This is not much different than working in a colocated situation, except my coworkers don't have to smell my B.O.

The tooling available these days makes remote work better than in person IMO.
I remember a former-NSA penetration tester telling me, a naive college hire, that for us to be successful developing BitLocker Drive Encryption, we’d have to make it good enough for terrorists to be willing to use it. It was a few years after 9/11 and that was a sobering conversation.
The threads of replies debating the technical "simplicity" of Wordpress are missing this part:

> easily modify content

If you have non-technical users editing a site, this one aspect takes precedence over everything else, and it's there that Wordpress continues to generally obliterate whatever workflow may qualify as "simple" to the average HN reader. If you've never used Wordpress' Gutenberg editor (or others based on the same model such as Medium or Squarespace), you should try it. The ability to not only change formatting but page structure and layout in a guided, template-driven way is simply not comparable to editing a Markdown file.

I'm pretty ambivalent on Wordpress' technical merits and its plugin ecosystem is a terrible attractive nuisance for the uninitiated, but if you want to give content authors a robust tool for publishing, there's not much else like it.
CIA.gov chose Drupal and allegedly stole designs from the Black Socialists in America and another graphic illustrator
Most static site generators can use WordPress as a data source, and rebuild via a webhook.
People the Suburbs Were Built for Are Gone
> Every languages has breaking change at some point.

This is where you are quite wrong.

Many languages and other software projects take backwards compatibility quite seriously.

Backwards compatibility is far more interesting to many clientele than the quality of the language itself. — the idea that one would have to rewrite one's codebase again later with all the potential regressions that that might lead to is not an appealing prospect.

Planes would crash if the software that ran airports would have to do this.