skysight-inc/HackerNews huggingface dataset:
It's more an issue of volume. People showing, doing laundry, cooking etc use significantly more water, so the pipes entering and leaving the building need to be sized differently.

Conversely, adding more toilets, for example, may also pose a challenge. My dad helped design the plumbing system for a rebuild of a football stadium. One of the final tests was to have a bunch of volunteers go to every sink, toilet and urinal in the building and turn them on / flush them simultaneously to ensure that water pressure stayed high and the drain pipes didn't back up.

Adding more toilets in a building not meant for them can be a big deal right after lunch / around "busy" times... Some may not be able to flush or overflow if the pipes can't handle the extra activity.
> The country is about 42000 km² big

It's not clear which country you're talking about; land area of the USA is 9.8 million km².

Melbourne (Australia) is a moderately large city of just under 10,000 km² in area. I'd (very conservatively) estimate at least 10% of that is roof space, so 1000 km² of roof-mounted panels seems pretty achievable.

Global electricity consumption (averaged over the year of 2019) is approx 2.7 terawatts (per statistica.com). Lets call it 100 terawatts (storage losses, switching oil heaters to electricity).

It's straightforward to get 1 kilowatt per square meter from a solar panel, so you'd need about 100k km² of solar panels globally. That's the rooflines of 100 cities the size of Melbourne.
Satellite could outshine all stars and planets in the night sky
I've been wishing there was an app where you could point your phone at a pile of scrap lumber and it would tell you things you could make with them. This is a step in that direction even if it's just for lego bricks right now.
> although sadly, literate programming seems all but dead now

It seems alive and well in the data-science community to me. Look at jupyter notebooks if you aren't aware of what I am talking about.
This and context. It is weird finding oneself in an extended argument only to find out you were talking about two entirely different contexts. Saturday Night live's "Emily Litella" skits on the weekend news[1] used this situation to good effect.

[1] https://www.youtube.com/watch?v=fZLeaSWY37I
It's a portable mini computer with different radios, nice screens, audio/video, cameras etc etc etc. How much cheaper to you think a proper smartphone could be?
hydrogen fcev is the way.
Being pure Python has an advantage where it can be run e.g., in Pythonista 3 for iOS (which allows to implement various functions such as: download just audio, send link to be viewed on a separate device).
Wonderful project, if you already have a stock of Raspberry Pis at home. I wonder if we'll ever be able to buy a Pi again. They've been out of stock everywhere since forever. I'm starting to consider it a dead platform and looking at different hardware (example Odroid.)
What kind of “smoking gun” are you looking for? In every public timeline of the Flint crisis, the budget emergency immediately precedes the decision to save money by using a different municipal water source. Are we expected to believe that the decision to save money on water was entirely unconnected to the city’s financial status? That beggars belief.
I came across this discussion and was shocked as well. Turns out there's now a button here: https://support.google.com/a/answer/2855120?product_name=Unu...

"I used my account for personal use"
There is about the same weight of lead in a normal car with a lead acid battery as there is lithium in an EV, but I don't know how we are measuring the total available amount of both for that abundance as the weight of an atom of lead is like 30-35 times that of lithium.
I really like how one of the impressionists said, with the birth of photography the art of portraiture is dead. It wasn't true: Firstly, Julia Margaret Cameron turned basic representational photographs into stunning works of art, managing tone and light and pose. Secondly, Art adapted, to use photography to capture the image for refinement in the studio, and also re-validated high end art as the product of human labour. Rich people queued up in droves to have their portraits painted, it was in many ways middle class and poor people who flocked to cartes de visite, daguerrotypes and tintype and other forms of photography to capture their lives and personal history.
Love bellard.
Another super hero programmer Justin Frankel doesn't get nearly as much press.
That bites. I can read on rough seas.
Rendering my (billiard) balls in a fragment shader
Here is a summary I wrote on my attempt to render balls using only a fragment shader. I am pretty happy with the result, and I've included a breakdown of the creation process.
It is always easy to promote your favorite by lying. the article author's favorite is obvious.

Solar, of course, does not need to take up any land at all, as it easily coexists with existing uses, whether reservoirs and canals, pasture and cropland, or industrial rooftops. Wind, similarly.

And a nuke, in the US, always fills a square mile. Then there are the uranium mines and tailings beds.
Many chemistries should be explored. Solid Power has a sulphide based solid electrolyte. Scaling to demand is the challenge.
I'm curious if they'll make use of the L5 GPS band now that popular phones are getting it.
You don't have to be a chef to be a creator. Creators create rubbish, only through constant failure do sparks of greatness arrive.

A creator can be anyone, greatness comes from anywhere.

To a home cook it starts by wondering what will happen if I add this, or change that. What if the recipe can be ignored. What if I add wine, or take away the tomato. Every time I'm prepared to make it worse, I allow it to be better.

The great musicians throw away 10 songs for every one they keep. We see their success, but perhaps in seeing their failure we would be better encouraged.

Being a creator has nothing to do with your circumstance. Opportunities to create are all around us in every mundane thing we do.

Incidentally I am not saying creators are better than anyone else. I'm not saying that they are somehow more-worthy. Yes they are rare, but rare doesn't mean special.

I'm not sure we are all born to create, that every child is a natural creator, but if we are all latent creators then all I can do is encourage everyone to try.

Perhaps though we are not all born to create. Maybe the willingness to be mocked, to fail, to suffer, to lose, is in but a few. Perhaps those few create because they have to, in spite of the obstacles.

In Profession George asks why. Why not tell everyone this is a possibility. Why not make creating an honorable job?

“And those who don’t? The ninety-nine thousand nine hundred and ninety-nine that don’t? We can’t have all those people considering themselves failures. They aim at the professions and one way or another they all make it. Everyone can place after his or her name: Registered something-or-other. In one fashion or another every individual has his or her place in society and this is necessary.”

" It won’t do to say to a man, ‘You can create. Do so.’ It is much safer to wait for a man to say, ‘I can create, and I will do so whether you wish it or not."
In the spirit of the Yo app, does anyone want to invest in bonfire.app?
Same but click see how it works for the whole video
There are 4 solutions I can think of:

1. Lambda architecture - split into Speed/Realtime and Batch/Historical layers. You stream updates into a realtime layer. Periodically (i.e. each night) you merge them into the Historical layer. And each query need to merge data from both layers (or you can pre-compute the results in case queries are predefined/fixed).

https://en.wikipedia.org/wiki/Lambda_architecture

kdb+/q was one of the first databases to use this scheme, they have RDB (Realtime/RAM in-memory DB) and HDB (Historical DB - partitioned on disk), and in some configurations even IDB (Intraday DB) on-disk for cases when RDB will spillover and hold the day's data. Each query would processed in parallel on all of them and then the results will be merged with UDF.

https://en.wikipedia.org/wiki/Kdb%2B

2. hot + cold storage (very similar to Lambda Architecture, but not exactly the same).

3. use OLAP DB/service that already does realtime data ingestion for you, e.g. Druid, kdb+/q, AWS Kinesis+Athena, GCP Pub/Sub ingesting directing into BigQuery, etc.

4. use Hadoop M/R, Spark, Flink, Apache Beam/GCP Dataflow, etc. to build a pre-computed results (i.e. Lambda arch. w/o serving layer).
Audrey: The Early 2000’s Failed Internet Appliance
An SPA has all the tools in their tooling chain necessary to minimize delivered CSS, yet they're often still slower than a static page web application with a 5000 line CSS file. The issue isn't the CSS rendering, it's in the timing of the resources and their delivery. If you load CSS in 12 different files, especially if you're doing it as the user interacts with the site, then the browser has to combine, reprocess and repaint every line of CSS it has been given so far, each time it gets new CSS. That's after waiting for the network request.

I know I'm talking against industry opinion, but I don't believe browsers are the right platform to be loading things on the fly as the user needs them. It's 50-300+ms absolute best case, plus processing time. It's going to feel bad.
I'm gonna say something outside the norm.

Recently, I've been more engaged on apps where you can batch thought dump and then schedule posts. This allows for:

1. community growth without overwhelm

2. (relating to 1) relationships take time, but as a soloprenuer, time is rarely available

3. batching all you want to say in (video, text, audio) format allows you to schedule "talking" and spend the rest of the week "listening"

4. (relating to 3) I reject real time communication apps unless I really trust the small community -- the stress of being on 24/7 through all concievable timezones is not healthy communication, don't fall into this trap
Since money is fungible, argument for good public transportation is argument against electric car subsidy and vice versa, whether you like it or not. Like, we could scrap electric car subsidy and use money on public transportation instead. And I argue we should: at the moment, electric car subsidy is stupid, people are in line to buy electric cars, there is no need for subsidy.
Well that’s because he comes from mining. We have plenty of lithium in the oceans waiting to get harvested.
We also have the technology to harvest lithium from the oceans.
This takes the same position as the building instructions you get with a Lego set.

To me the interesting part is you can buy brick buckets and still allow unexperienced kids to build something cool following instructions.

They’ll still do modifications and evolutions from there, the important part being that they know how it was built and can break it and rebuild again.
There is no need to "raise panels high enough". Bifacial panels may be erected vertically, in fencerows running north/south, with room for farm equipment to run between. Crops and livestock both do better with shade, evaporation loss is lower, and picking up morning and afternoon sun matches the demand curve better.

There is no need to pack the rows tightly, because there is way, way, way more pasture and crop land than could ever be needed for solar. All the revenue the panels provide is extra, on top of revenue from existing land use.

Solar floating on reservoirs, bays, and canals also "takes up" no land area, while it reduces evaporation loss, operates more efficiently kept cool, cuts biofouling, and provides protected habitat underneath.

The desert is a particularly dumb place to put solar panels: the panels get hot and dusty, cutting production, and the high temperature reduces both useful panel life and reliability. But ignorant investors love desert solar, so we are getting a great deal of desert solar.

Concentrated solar thermal will always be a minor player, but the desert is a reasonable place for it. It is a better source of process heat than electricity, but we do need a great deal of industrial process heat.
Seems like half of programmers these days spend more time engaging in twitter drama than actually getting work done.
Lisp had images in its first version around 1960. See the Lisp 1 and Lisp 1.5 manuals.

See Page 67 in the Lisp 1 manual from 1960:

https://www.softwarepreservation.org/projects/LISP/book/LISP...

Then BBN Lisp had an extensive IDE. Xerox later took over and developed it as Interlisp.

Multiple dispatch in Common Lisp comes from Xerox CommonLoops (1986) and then CLOS.

https://dl.acm.org/doi/10.1145/28697.28700
The USA is very much not corrupt by world standards. But our corruption ranking is well below other English speaking countries.

Looking at https://www.transparency.org/en/cpi/2021/index/usa I'm worried by how much more corrupt we became after Trump got into power.
I'd argue this is more about defaults. Speech defaults to free and is well protected with extremely rare/narrow exceptions, violence defaults to controlled.

Some forms of violence of private citizens are not illegal (self-defense), but I think we're better off in a society where violence is default illegal.

Speech and violence are pretty different things.
> I am not quite sure what they are selling.

I wrote about this a while back: https://news.ycombinator.com/item?id=30678324
It did not seem like that was the message? More just identifying a point where needs are met?
Tangential: Is there a 6.502 introductory course for microprocessors?
"Update August 2019: Based on the positive response to this article, we’re working on Muse as a full product."

now at https://museapp.com/
Google Wallet vs. Google Pay: What’s the Difference?
It’s not really literate programming. It’s just editable/executable code intertwined with text. There’s no tangle and weave, or code reuse.
For kids I guess it kills creativity, but using the same idea for (house?) decoration would be very neat. Scan your messy things and suggest how you can rearrange them to make it beautiful.
Citizen's United is a more nuanced issue when you read about the legal arguments (maybe you have, but often people don't know the details). I had seen a lot of people say negative things about it, but when I read about it I thought the way it was decided made sense.
8 Million Species of Aliens
That’s a false dichotomy. There is a third possibly:
He is an extremely talented and skilled chess player, who will resort to cheating to beat people at his level, using it sparingly.
That's not how it works at all. L5 at 1176 MHz has a different ionospheric delay than L1 at 1575 MHz. Since the timing data is identical, you can calculate and remove the ionospheric delay if you can receive both signals at once.

Correlation peak width is an SNR property (and to a lesser extent dependent on receiver LO phase noise), not something that really corresponds to the RF band in use. Whichever signal is stronger (taking antenna gain into account) is the one that will yield better-quality baseband data.
It's about more than just reasoning better. It's about calling out poor logic and bad information. Increasingly misinformation can be dangerous, and it is not ethical to say "it's ok for you to believe that". Which is to say, it's ok to refuse to agree to disagree just to achieve a temporary peace.

Their proposal is not about education, but about refusing to back down even when it would be easier to declare a truce and a draw.

That is much harder. Simply refusing to give in does not give you a route to convincing people. People with misinformation are at least as certain of their position as better informed people, and often more so. This is a call to fight an often unwinnable fight in the hope that the truth will win out eventually just because it is the truth.

I myself am not that brave and much more pessimistic. But I want to believe that the fight is worth participating in even if it loses. I used to believe it and I wish I still could.
I sympathize with you. I'm not self hosting but I'm not using Gmail which is what most of the people I know or work with are using. And yet Google could read most of my mail by looking at the mailboxes of the people I'm exchanging mail with. And the company running the SMTP and POP3 servers I use could read all my messages. I guess you are as safe from snooping as I am.
I tried to enter "now" and the stupid phone decided I was going for "not".
It is a transparent falsehood.

Besides that just the area already devoted to fossil fuel extraction would suffice, solar and wind coexist neatly with existing uses, so don't need to "use up" any land at all.
Second the reco for Pushpa.
It has really nice music, which is _mildly_ inappropriate for children (assuming you know telugu, or the song gets subs/dubbed)
My father wrote technical books through the 80's and 90's. I remember him being very happy about a book that sold in the low tens of thousands of copies (I'm guessing 20k or so). I know some of them flopped. Even as a child I knew that it did not make sense financially... stay up til 4am writing for a solid year or more (he had a regular job as well), so that you can get maybe 5-10% royalty on something that likely will sell only a few thousand copies on average. The ephemeral natural of computer books makes it even worse.
I don't believe that several hundred thousand people migrate out of the US every year. Such would certainly make the news. Yes, there are ex pats, but not many.

What would you say the number of people dying in factory fires were?

Since life expectancy went steadily up during the 19th century, it doesn't seem like factory fires had a worse effect than the positive effect of better nutrition, sanitation, housing, etc.

> I’m not going to bother responding to these paragraphs

Those numbers are easily findable via google. If they don't fit the thesis that Amazon is a hellhole for workers and bad for customers, oh well. The migrants that come here by the hundreds of thousands also are not turning around and running away once they discover how awful it is here.
previously
https://news.ycombinator.com/item?id=24294397

and

https://news.ycombinator.com/item?id=31494498
Having lived in many an unconventional domicile over the years, it seems to me that there is an untapped market for the type of furniture solutions that you only need when you're living somewhere not designed for living.

I lived in a hotel for a while. White carpet! White marble sink! Don't drink any grape juice or wine!

When your kitchen is just a mini-fridge, hot-plate, electric kettle, and a toaster, everything takes so many extra steps to protect your environment from any possible spills. Had to do dishes in the tub, and while the laundry was broken, also did laundry there and then turned the whole room into a drying area.

Things like this are going to be happening with increasing frequency. Landlords and property managers are going to get mad or at least very stressed about %$#@# dangit these &@#^@# people how can they live like this!? Meanwhile the tenants will be pissed about living in the converse situation wondering @#$@#$ dangit how are we supposed to live any other way if the facilities are built for other activities!?!
Geez, this thread man.

@pron I was with you before: I think pcwaltons' take on zig is ... Err, unduly negative to the point of rudeness and closed minded — and kinda paints a clear picture for why we're seeing all of the defensiveness in twitter from andrewkelly and the zig folks.

But — I think you're coming into it similarly here against Rust. Unnecessarily rude, antagonistic, and on technical points: closed minded.

@pcwalton The zig team feels they've made good pragmatic choices around memory safety? Cool. Leave a few reasons why it's different from/and why rust took another approach and your take. Dope.

@pron The Rust folk are happy and proud of the inroads they've made in adoption. Dope. Sure, there's different ways to slice the numbers and you feel what? They've taken unearned pride in their work?

I'm a fan of all of your work, but man. This thread has been disheartening.
And in fact actual food could be farmed in those acres at the same time, instead of fuel.
Is the planet crowded? Whenever I go on a road trip I certainly don't get that impression. There's 20 minutes of cities, an hour of outskirts, then 4 hours of nothing. People don't want to live that far away from everyone else, in general, but wind turbines and solar panels don't get as lonely. All you really have to worry about are resistive losses when bringing the electricity to the people, and that seems very manageable. It's also a problem with nuclear because nobody really wants to live next door to a nuclear power plant. One "hold my beer!" away from being the next "Damn Interesting" article in the lost cities category.
Yet, far, far more is available than could ever be needed. Orders of magnitude more.
> A luxury apartment today is affordable housing tomorrow

I'm not sure I understand. You probably don't mean that literally unless "tomorrow" is 50 years from now. How does it lower rent to make some housing affordable, simply by increasing supply?
I don't get why we (Germany) don't support PV on roofs much more than we do right now.
yeah. like these ugly windmills, also a horrible sight. /s

on a serious note we need to be careful in shaping the world, and a license to mine has to be bound to a plan and a budget for recultivation, for restoration of a habitable and nice landscape.
What crowded planet? It's not always so easy to generalize things.

We have huge deserts that can't sustain human life properly (lack of water sources). Good for solar power plants though.

I'd much rather have, say, Australian cities ran with solar power from huge installations in the centre of the country than building nuclear plants right next to Sydney or Melbourne.

Of course other countries like Singapore wouldn't have that option. We can't generalize the whole planet ("so crowded").
Also in a lot of older trucks and busses

https://en.m.wikipedia.org/wiki/Detroit_Diesel_Series_71
There's also the issue of windows. High-rise office buildings frequently have large floors with windowed offices around the perimeter and huge windowless areas filled with cubicles in the interior. However, residential buildings are generally required by building codes to have a certain number of windows per apartment (or even per room).
The writer didn't even need to read the entire book mentioned in the first paragraph, quite sure Tolkien explicitly said Bombadil was always meant to be an enigma, all powerful and yet completely aloof from the world.

As cliche as it is to say, utterly disappointed he was left out of Peter Jackson's movies, re-watching the entire 12 hours of the extended cuts, he clearly could have had some screentime amongst all the filler. Haven't watched Rings of Power but hope they drop him in somewhere, a character that well-loved surely deserves some fan service.
Who the hell updated Queen Elizabeth II's Wikipedia page so quickly?
Came for the title, stayed for the shaders. Well written and very educational
It's like any hobby. Sometimes people are able to take their hobby full time after a massive success. Most of the time it's a hobby that provides satisfaction.
Could we change the title to the actual title of the article?

I was, let's say, really scared when tapping the link with the current title.
There is a risk of policymakers reading documents like this and using it to make conclusions about which types of energy generation are 'best'.

That's a bad thing to do, because no analysis like this can truly capture all the upsides and downsides of any particular plant in a specific location.

You know one thing that can? It's profitability.

The profits of a power plant are directly impacted by the cost of land - and a power plant competes for the same land as farms and houses.

As long as our markets correctly price in externalities (for example a per-acre-per-year tax for any land not left untouched), then the market makes far better decisions about what to build where than any policymaker ever could.