skysight-inc/HackerNews huggingface dataset:
The problem with holes in the ground for storage of things like batteries is that... they're holes in the ground. The ground, as a general guideline, actively dislikes holes in it and strives to fill them in whatever way possible. Liquid rolling in, soil creep, debris blowing past and building up, it doesn't matter - given a long enough time, a hole in the ground won't exist anymore.

You can build a hole that will hold up to this sort of stuff for a while, but that tends to be expensive - underground concrete work is neither cheap nor easy, and given the number of people injured in trench collapses who do it for a living, a serious underground hole isn't a good DIY project either.

That just leaves the maintenance, which also sucks for a hole in the ground. Anything you have to do on the batteries is easier with them on or above the ground, instead of underground in a hole. For lithium, it's fairly low maintenance but you may have to replace some BMS boards every now and then, manually check balance, etc, and for lead it's water every few months, unless you go with sealed, which are "maintenance free," but also "maintenance and status check impossible," so you really just set them and run them to failure - you can't monitor condition like you can with flooded.

It's the sort of solution that, technically, would work - it just ends up being radically more expensive and a hassle than it's remotely worth. Think "Spending $5000 to save $20/yr" sort of thing.

You see the same trend with things like the complex solar trackers that were common in the 80s and early 90s. With the cost of panels, optimizing every bit of power from them was critical, so spending an awful lot of money on support infrastructure to optimize $10/W panel production made quite a bit of practical and financial sense.

Today, with panels at $0.50/W, very few people bother with trackers anymore (for off grid installs). Most things you could improve with a tracker, you can improve with less effort and less money by just hanging more panels. Bonus: With more panels, you get more production on cloudy days when panel orientation doesn't matter (because the sky is more or less evenly lit).

I've got south facing, east facing, and west facing panels on my office, of two different brands, all fed into a single MPPT charge controller input (I do have some blocking diodes to prevent backfeeding a shaded string, though). It's not nearly as "efficient" as some other options, but it's a whole lot cheaper, and gives me more power on the low cloud days that are the rough ones. The rest of the year, I have so much power out there that I'm demand limited, not supply limited (actually, inverter limited - if I added some 48VDC loads, I could use another 5kWh/day easily).
I believe the FDNY has not yet approved battery systems like the Tesla Powerwall for use in residential solar systems.
Where did you buy the bus from?
this article appears to be a marketing piece for Commonwealth Fusion Systems.

No mention of NIF, which actually has achieved ignition.
I dont get why police dont take quality of life crimes more seriously like that. Like if you have a noise problem there is no reason to call the police, they won't show up. What are we paying them for? To write up documents for crimes that happen after the fact?
he was advocating for a big first-strike nuclear attack against the USSR that would have killed millions of innocents.

Pretty hard to be worse that that.
This one is nice:

https://www.lightpollutionmap.info

https://news.ycombinator.com/item?id=26915536
This feels like a rare revolutionary step, instead of the usual evolution.
Ten Thousand: https://xkcd.com/1053/
I mean, if you were at all serious about security you'd just not use it. So it's just as insecure.
"Scrutiny" doesn't mean making up nonsense issues, which is what this is. There's no amount of weasel words you're going to apply that's going to make changing an MIT license in a public git repository part of a terrifying conspiracy --- or a conspiracy of any sort.
Tesla's guidance for dealing with battery fires in their cars is to basically flood them. I think the idea is to keep the temperature down. The water won't extinguish it because it's a chemical fire, but you can use water to keep it from spiraling out of control.
Maybe a more useful contribution is to say that mushroom 'highs' are cumulative. I've been a bit of a casual nibbler for 25 yrs or so. You can always eat a little more but you can't uneat them. So that's all. The quantity/duration of consumption ratio is very significant for a good experience :)
It's a complex issue, though both aren't necessarily wrong. Land is limited and its raw volume rarely changes. Housing could be increased through scaling up, developing greenfield, or redeveloping underutilized land.

If housing were thought of more as a consumable than ones primary investment that would accelerate better use of land for housing.
School is cancelled due to DDOS attack.
However you slice it, unless you use a cross-platform system you’re going to write and test some code three times. Or four. Or five.

I love native apps, but it’s hardly a difficult choice to make for a business. Only nerds like us notice apps that use gigabytes of ram.

Spotify is on every platform and probably they wrote that interface once. That’s a gigantic win for everyone involved.
At AWS support has a direct line to product and engineering service teams so if support can’t resolve it, there is an engineer on call who can help out depending on the need. Worst case they don’t support what is needed and it goes on the backlog.
Aren't modern gas heating systems usually dependent on electricity ? Usually for regulation, safety sensors, water circuit pump, etc.
Thanks for Your extensive review on Amazon `This is an exceptionally good book. If you know how to program in some other language, and want to pick up JavaScript, then this is your book. It did an excellent job of explaining everything in a logical order, telling a good story. Read through the 300 or so pages from start to finish and you'll be set to move on the JS web framework of your choice. (The recently updated JavaScript: the Definitive Guide seems the other alternative, but it is 665 pages to wade through.)

I especially liked how the author came up with 5 golden rules to follow right up front, such as "avoid automatic type conversion". JavaScript has so many crufty historical flaws, and by following these rules, he doesn't have to explain all the weird historical stuff. That cut out a lot of laborious explanation of things you shouldn't do anyway.

The examples were very well chosen. They focused on the important stuff, yet still explained the key gotcha's inherent in the language. Every paragraph seemed to have an important point.

It is a shame this is only the 85th most popular JavaScript book (as of now). It deserves to be better known. It is a classic, and perhaps the best computer book I've read since "The Go Programming Language".

Highly recommended.`. Will add this to my read-list after I complete WatchAndCode
Go and look at simple mobile tools. This person is selling Foss apps on google play store pro version but pro version is also on f droid for free and github.

Look at the downloads of pro versions and tell me if they haven't found it sucessfull
(I heard they lost by seven points today, so I hope everyone's doing OK... financially speaking, of course.)
Ask HN: What recent research papers are most interesting in your field?
What has peaked your interest lately? Where is your field heading?
In looking at risk, I would be most concerned with what kind of malfunction could lead to what outcome. LiFePO batteries can be punctured without catching fire, and if a fire is caused by something else, they are not fundamentally very combustible. This chemistry is very different from Lithium-ion. In terms of add this to your house, there is low risk of them starting a fire, and low risk of them contributing to a fire in a significant way.

Gasoline in a car has a low risk of starting a fire, but a higher risk in the event of being exposed to a fire. Storing gasoline in a jerry can probably has higher risk of the first, and certainly the second.

Keep in mind both of these risks are much much lower than so many other things in your house that you do every day. Extension cords, faulty wiring, arcs, heaters, kitchen fires, etc.

I am using Enphase Encharge batteries, which are a LiFePO4 chemistry. They are in my garage, which is heated, so outdoor temperatures don'r make a difference. If they were outdoors, cold temperatures would be a problem below 0F, so if that is your situation I would only do an inside mount. I only have 20-30 cycles so far, but the cycle count is generally well regarded with this chemistry. Still, I don't expect these to last more than 15-20 years.
> Mastodon was funded by Prototype Fund this year to develop new features

Yeah and that's insulting. As if they had already been compensated for what features came before.

Why make the funding conditional on new features? When someone has already put in so much unpaid labor. Reward the already-contributed labor!
This? https://tlsnotary.org/
Even if zoning didn't exist and land was perfectly used certain property would just be worth more than others.

Imagine all of humanity living in a single skyscraper that can be built up indefinitely. Perhaps a condo closer to the ground floor would be more expensive, or maybe at the top, or maybe west, east, etc.

Certain land being worth more than others is more a function of the inherent differences in things than anything else.
If you have the gigawatts of electricity required to run the inertial fusion lasers, there are probably better ways to use that power to get around. Massive ion engines, or powering the pumps for a nuclear salt water engine, maybe, depending on how exciting you want your ride to be.
Can’t Amazon just pay Stack Overflow and use the tool they’ve built and license instead of stealing their design and UI and workflow for probably more money?
Because they want to own, operate, and moderate their own site. Having SO run the site wouldn't accomplish that.
Why is U.S. labor supply so low?
I actually disagree, while Rust has a great deal of features it’s still significantly easier to read. A big part of that I think comes from not having implicit function overloads and having not succumbed to the multitude of bikeshed acceptable language subsets C++ has developed over the many years it has existed. The rust you write on a microcontroller isn’t actually that different than the rust you’d write for a web app. Perhaps a clear sign that the parents statement is evidently incorrect is the acceptance of rust and the utter denial of C++ in the Linux kernel, where developers demand readability. Part of that may very well be what Rust provides as a feature set is enticing enough to work with whatever readability issues have come up.
And the fact that you have some other asshole living in your house now.
> Depending on your house layout, you might basically need to gut your entire house just to rewire a single appliance.

This is simply not true. Any decent electrician will be able to fish the lines with a few strategically placed small holes.
This is a bizarre take. What's considered "serious security" depends on the needs of the person and the kind of info they're transmitting.

To tell people that there is no advantage to use Signal instead of much less secure alternatives because your Area 51 security requirements aren't met is actively harmful and bad advice.
There are many intelligent people who purport to be Christian/Muslim/etc, which all require severely flawed thinking to seriously believe.

What you’re doing is conducting an ad hominem attack, assuming that this dude’s views on one topic have any relevance to the accuracy of a completely different topic (with a nearly decade gap nonetheless).
You can't ascribe one attitude to a thread of hundreds of commenters and then shame us for ascribing an attitude to a company.
What are the good reasons to develop an area? Proximity to a better one? Fresh water sources? Desirable weather? Good schools? Unpolluted environment? Nice parks?
I hope my ignorance can be forgiven, but every time I see economist lit it comes off as incredibly reductive. There's always something (like the secondary fight-night line you mention) that seems intuitively obvious to me but gets glossed over. Am I just ignorant?
I've run into this guys videos before, and I find them a bit conspiratorial, and certainly not academically honest. What you describe is not my experience with heat pumps at all. Sibling comment says it best.
> I'm not sure how you can say that without knowing the heat loss for every room.

I can say it because houses are fairly typical and if the heat loss for a room is greater than the minimum head size for a minisplit, the room probably needs some work before you should be putting a minisplit in it.

This is all just math, and 6,000 Btu/h (the minimum head size) happens to actually be a lot of heating for any normal room.
Stack Exchange is broader than SO and other sites have other rules.
We don't need a bunch more prototypes, but we do need to compensate some of the people who have already put in a lot of unpaid labor.
Granting your premise, it's still not a problem upon which individual actions like this have any impact whatsoever. What OP does with his house, heating it with gas, electric, wood, or coal is not going to matter one bit on a global scale.
Well at least then you're only waiting on the bureaucracy and then seconds for AWS instead of beaurocracy and then machine order, setup, provisioning, and re-provisioning time, all with their own bureaucracy time :)

When I worked in Sony games I had the choice between AWS and the IT department. The IT department was fine, just it was a 6 month lead time for the hardware and they had a tendency to optimize servers they didn't understand.

The problem was that they wanted 6 months and a capacity plan. 2 months to get me a test server. I knew server capacity about 2 weeks before launch. I also needed 5 server class machines with which to test against (which was the end cluster number) and the kicker which was 250 load generators to prove it.

The real kicker is that for many games load peak is the Friday after launch, we really only needed 1 machine a week later, and .25 going forward thereafter.

With the IT department we would have bought $160k worth of servers. And we still couldn't have actually tested things without AWS. AWS Cost $30k the first year and then we actually moved to new instance classes which cost $12k, $6k, and $1k a year thereafter. It was enough cost dropping that it wasn't worth dev time to even downgrade the cluster to a single instance.

None of that includes what IT would have cost to run the hardware. I'd make the same choice every time.
I’m actually in the market for an EV or PHEV that seats 6 or more, and my search started with the Model X. But I’ll probably wind up getting a Volvo XC90. It’s around $30K cheaper, which is nice, and more importantly, if I ordered a Model X tomorrow, the expected delivery date is January 2023.
How do you think the circumstances and motivations of a government employee differ from those of a CEO?
There are so many super cool aspects to this!

- it's always fun when a new equation or formula is discovered, doubly so when it is very practical

- actually really easy to wrap your head around it

- seems very computationally efficient. Basically boils down to sorts and distance

- not limited to strict numeric fields ( integers and reals). Anything with an ordering defined can act as your Xs/Ys: characters, words, complex/vectors (under magnitude). I think you could even apply it recursively to divide and conquer high dimensional datasets.

- looks useful in both LTI and non stationary signal analysis

- possible use cases: exoplanet search, cosmology in general, ecology, climate, cryptanalysis, medicine, neuroscience, and of course, someone will find a way to win (more likely lose) money on stonks.
Homes in the Northeast will often have radiator heat, hot water which circulates by convection. A modern boiler might need electricity for the computer controls, but an old one won't.
But how Do it Know? The Basic Principles of Computers for Everyone - J. Clarke Scott.
> Larry Ellison has an ASD diagnosis? TIL.

Not to my knowledge, just was offering a counterpoint to the GP who seemed to think there are only negatives to adversity, like ASD. In that example "No benefits of [adversity]" Where the adversity of not being raised by your biological father might make you significantly more likely to be a billionaire or POTUS.
More realistically this would look like “get married, buy a house, split the mortgage”.
People who disregard everything someone has to say based on one belief are generally pretty stupid themselves. What an impressive way to discourage critical thinking.
You can insulate them to reduce heating demand, and it will help to an extent (undo that before summer to avoid cooking them), but for an unattended system, it's never going to work out very well. If the system is a year round cabin, the solution is easy enough - keep them in the heated space (which you'll have propane/kerosene/biomass heaters for), and it's not a real problem. But unattended stuff... you really just need to plan for something that can tolerate bitter cold without damage. Or to seriously overpanel the system, 10x+ what you need for summer use, and hope they produce something.

I think most people underestimate just how much delta in production there can be on solar. My house array is grid tied, 16kW, a bit weird looking (mostly east-west panels, designed for post net metering). On a really good, cool, clear, windy spring day, I can produce about 105kWh out of the system from sunup to sundown.

On a really bad, low, grey, winter day, that same system produces about 2kWh. It's literally a factor of 50 difference. And we can get several days of that in a row. I have a backup generator that I use for my office on weeks like that (separate, off-grid system).

"Winter, electric heat on solar" is a fairly good filter for those who have read about solar or pondered it, and those who have a few years of it under their belt. The second group are the ones who've tried it, discovered just how horribly it doesn't work, and are trying to convince the first group that, no, really, insert well worn idea here really doesn't fix the problems with it.

I guarantee if it were easy, people would be doing it. That you won't find any serious off grid system doing electric battery heating is because it doesn't work.
You can get 4 heads installed and a condenser for $1000 vs regular AC? The Mitsubishi hyper heat 36K BTU draws 50 amps.
I don't really get it though, like you want it to be quiet everywhere always? I definitely hate motorcycles or loud cars, but I've never been bothered too much by people noises or music. I've lived in highrises and above a night club and it was ok.

Construction can be annoying and I once lived next door to a tire shop and that was pretty bad, but even things like fireworks don't bother me.

I've lived in nature and on a farm before as well and both are pretty loud. Animals are loud and on the farm chickens, cows and geese can rival and humans noise or music. In nature bird noises are pretty crazy too and the coyotes will wake the dead from about 2-5am.
i wonder if they already had a database of items and attributes or if this was all built custom for the demo.

kind of amusing to think how similar it is to many modern day data science projects. it's entirely plausible to think that they may have had a roomful of people at one point, punching out punch cards describing which items were good for which demographics. like an actually mechanical mechanical turk.
Yeah, some people had problems with all-in-one battery systems in their homes that were AC coupled to their solar here in Australia over some weather disasters where there were prolonged outages for that reason.

I’d quite like a battery system, I think I’d DIY (well, design the system but here you need a licensed electrician to wire up the AC/grid connect side) using Victron equipment. I have a 5 kW solar system already with a AC inverter which I can keep, so I would probably use a 5000KVA inverter-charger (Multiplus-II), but then I’d add another 1.5kW or so of solar that is directly DC coupled to the batteries and the DC side of the inverter-charger through a separate DC MPPT tracker.

So the DC coupled solar would be enough to kick-start the system to get the AC side back on after a bit if the grid was out and the batteries were depleted overnight.
NIF is a weapons research program, with no intended or possible path to power generation.
USS Milwaukee: Covid outbreak takes another Navy ship offline
I wonder if this was partly an inspiration for https://montypython.fandom.com/wiki/The_Cycling_Tour The strange/innocuous notes mentioned reminded me of some of the dialog. It probably is completely unrelated though though the Monty Python sketch does seem to have happened much later.
Google could totally do this too, just sample a few times a day the decibel level on every android and cross it with location data.
I grew up in homes built in 1975 and 1995, both of which have no gas hookups. They're great homes.

But now that I'm living in California, electricity is so expensive and time-of-use so annoying that I can't imagine electrification unless I'm off-grid.

Where are you and how does the running cost compare?

I'm burning 5 therms a day to keep my interior at 16 C averaged over the last four weeks. Having intact exterior walls would probably help, but after two years I'm still waiting on local planners to give me permission to ask for permission to build.

I'm getting really close to bailing to someplace sensible.
Right, I missed a mark there. Rather it would be a list of personality traits being linked to autism. Neurodevelopmental disability or neurodevelopmental disorder fits better (implies incurable), but it has a negative connotation; precisely what I wanted to address.

The article could have used a 3D cube to describe the spectrum. Then you get the colors and tints of it. Some people describe all the traits with spectrum, some severity of specific trait. 3D cube covers both, kind of like a 3D spectrogram, just multiple charts. The text then becomes context, and you immediately notice visually the differences. Context is still very much relevant though.

I thought the article was good but missed the mark on the comparson of suffering. In general, high functioning autistics are (seemingly) more intelligent, and intelligent people seem to suffer more from things like depression, weight of the world being on their shoulders. My 3 y.o. (who appears to be intelligent and likely on spectrum) doesn't realize such yet. Innocence is a blessing in disguise.
Good points. I probably have a sixth sense for avoiding recipes that the stove can't manage.

I had no idea about the amount of leaking, but it makes sense. Unless you're actively checking every foot of gas pipe everywhere, chances are it's leaking here and there. But it's too bad. I learned while doing process control in a plant with steam heated processes, that you can run a lot of power down a gas pipe. I have a hunch that they could heat all of NYC from just waste heat.
Thank you so much for sharing your book! That’s very generous of you. I hope you’re able to get through your current challenges too.
You don’t “need” any of that.
Liam Neeson's deep fake voice has a weird stutter when he speaks.

https://fakeyou.com/tts/result/TR:twwgqfh2432z2sq1e1k1ek4340...
Cumtown[0] made me literally pass out laughing once.

[0]https://en.m.wikipedia.org/wiki/Cum_Town