skysight-inc/HackerNews huggingface dataset:
Heat pumps such as Mitsubishi's "Hyper-Heat" models should be above 3 to 1 down to a little below freezing, and better than 2 to 1 down to around 0℉ (-18℃). They are down to about 1 to 1 at -15℉ (-26℃).
An electric stovetop boils water faster than a gas stovetop
You’re comparing Carnot efficiencies for heat pumps with nominal efficiencies for natural gas heaters. Heat pumps have nominal efficiencies well over 100%. They can move more joules of heat from outside than the number of joules of energy they consume.
I forgot to mention, the way that a) having a Brexit, b) honouring the Good Friday agreement and c) territorial integrity of the UK (no border between NI and GB) all at once is called the "Brexit Trilemma"

As in, pick any 2, we can't have all 3 at once as that's logically inconsistent - these are not compatible things.

The decision to add "brexit" to the mix was _not_ a responsible act by rational actors.

See https://twitter.com/rdanielkelemen/status/136713747706093978...

or google "Brexit Trilemma". https://www.google.co.uk/search?q=brexit+trilemma
Maybe you block ads? When I deactivate my blocker for the site, ads appear...
I agree with you in principle but "stamp out" and "be better" are phrases that produce the opposite of what you're aiming at. We're trying to avoid the online callout/shaming culture here.

https://hn.algolia.com/?sort=byDate&type=comment&dateRange=a...
My impression from your comment is that you don't care that much about "standard" ML users. As a "standard" ML user (pytorch/jax), and a potential Julia user in the future, this is not what I like to hear.
Building Adaptive Apps
Second time this week I saw this from the same user as well. Dang should pay some attention
My immediate reaction was the exact opposite, because replacing natural gas with manufactured gas would be comparatively easy. You can even push plain H2 into the mix as long as the fraction is within a certain range. A gas network can serve as a considerable sink for non-dispatchable renewables to not go to waste. But it's the same (or better!) for centralized natgas plants, so that's clearly better, at least as long as there are no cheap compromises taken to go electric (like installing cheap resistive heating, which is actually a thing here in Germany, where an entire industry pretends that we'd be fine in cold air as long as there's some IR emitter pointed at our body)
I've experienced power going out for a week. I don't know if we have battery technology to heat a house for a week. The tesla battery is 13.5 kWh and costs more than $10k. Just rough calculation, a typical baseboard heater is 1k so thats just enough capacity to run one heater for 13 hours.

The space requirements and enough battery capacity for an entire 50 story apartment building that would last a week, would probably be prohibitively expensive.
The alternative of having to fix frozen pipes in a large apartment building, even if nothing is flooded is probably months of plumbing work. If you could even find the plumbers to do the work if theres a large scale power outage in a city.

My uncle is a plumber, plumbing a new condo building takes months and even years. And thats without complications of having to tear out walls to find where the pipes burst.
I had frozen pipes in a house and it was a nightmare to deal with. They burst in multiple places and flood when temperature heats up.

I'm for green technology, but not when it will kill people.
Its important to make sound decisions, not based on ideology. Especially if you want to achieve your goals. You don't want the public to quickly turn against you.
I can't believe how bad the EHRs in ER settings seem to be. I run a small (but complete) EHR that never has these problems, but we don't have the right sales people I guess to get into these settings.
Efficiency of cooking with gas is less than 30% so I'm not sure your point about relative efficiencies is correct. But I agree with the overall point.
Thank you for your comment. I myself have cooked on gas my whole life, have learnt over years how each of my different pans heats over gas (it sounds stupid but there are a lot of subtleties when it comes to cast iron, carbon steel and stainless steel, how they hear up at different rates and develop hot spots, how the sides and the center hear differently, and how that can result in burnt oil). I am anxious to have to learn all of this again on induction, and maybe even having to let go of my beloved carbon steel pan (it's unclear to me how well it will work on induction and whether it will warp or spin on the flat surface).

But overall the reasoning of this change makes sense to me - we'll all have to adapt and it'll be annoying but we can't wait. The right time to start was 30 years ago - the second best time is now.
California has 7ish times the GDP with less than 5 times the population, so it would superficially have less excuses for homelessness (to be fair, it has less control because the USA extracts more tax from and dictates more policy to California than the EU does to Austria, so arguably the blame belongs at least in part at the higher level.)
Yes, exactly.

One can think of it this way also: if 85 kWh of battery modules is made, how should they be placed to reduce the most CO2.

You can put them into 8 plugin hybrid cars with 10 kWh battery in each, and it's used for commuting in each of them, replacing 80% of yearly kilometers with electric ones, that's maybe 10 x 20,000 x 0.8 = 160,000 km electric driving. Those cars still drive 10 x 20,000 x 0.2 = 40,000 km with gasoline (for long road trips etc).

Or you can put them all into one Tesla. If it's a regular private car, it drives 20,000 km per year and thus we have 20,000 km of electric driving.

So in this calculation, it would make more sense from environmental point of view to put the battery modules in hybrid cars.

Now, maybe the Tesla is a Taxi and is actually driven 100,000 km per year, then it's different.

Or maybe the luxury Teslas that sit on driveways as status symbols are changing how people think, or are driving innovation and have massive leverage that way.

But it's complicated.
Why you are posting the exact comment repeatedly? I saw this twice the past week in China related posts
You broke the site guidelines so badly and so repeatedly in this thread that I've banned the account. If it were just a question of a single thread, I'd put it down to going on tilt (which happens sometimes), but you've also been breaking the guidelines egregiously in other places too.

If you don't want to be banned, you're welcome to email hn@ycombinator.com and give us reason to believe that you'll follow the rules in the future. They're here: https://news.ycombinator.com/newsguidelines.html.

We detached this subthread from https://news.ycombinator.com/item?id=29683556.
Democracy doesn't work.

Even the United States isn't genuinely democratic as most representative hold stock in various companies.

The best way to influence congress in the United States is to lobby, not vote.

And even in the ways that democracy works in the United States, most issues are in a deadlock position.

How long has the United States argued over abortion? the past, what, half century?

And we still go back and forth.

The United States is crumbling right now due to this deadlock with each party looking to overturn the changes that the previous leadership has overturned and so on and so forth.

Democracy is dying.

My ignorance is not as valuable as your knowledge, but this is precisely what democracy implies.

This isn't to say I advocate for Authoritarian governments either, but they do get rid of the levels of bureaucracy and levels of administration to administer changes, whereas in an authoritarian government is way more efficient to deal with changes.

I'd advocate for a benevolent authoritarian, but it doesn't mean that the successor, or the next, won't be a complete asshole, which is why authoritarian is dangerous.

However, the form of government that I would truly advocate for is a meritocratic oligarchy where the few would have absolute rule, but deserve to have that absolute rule in the sense they are benevolent, just, but wise and efficient at the same time.

Democracy is dying. I have absolutely no hope for this deadlock and polarization between the the factions of the United States, especially when most representatives are sellouts to corporations.
I think it's a shame that science does not study rare phenomena like this when they arise, I think there is a lot that could be learned from them.

> and feeling as though I was physically back in the same situation/it was starting to happen again.

> Even though entirely illogical and not being in the same place it happened, in my mind I felt dead certain that the events that had happened were starting to replay themselves and even physically I was reliving the sensations.

I once took some psychedelics and forgot I had taken them (I was also drinking beer), and I had an experience quite similar to this, but at the time had completely forgotten that I was on psychedelics. I always leave myself a note nowadays.
I like the business model, where MS Store users (and Steam, Epic, Google) pay $10USD and linux users just DL for free.
The efficiency depends on the temp. outside.

That's why nat. gas is used for heating more in the north and less so in the south.

At a certain point it's more efficient to burn the gas directly.

https://en.wikipedia.org/wiki/Coefficient_of_performance
I asked a question about whether a recent outage was impacting SWF, as the status page showed that it wasn't.

I got a confirmation from AWS staff in just a few minutes:

https://www.repost.aws/questions/QUTPxjIgdcSWm6tTCacifdDg/is...

So, one thing it has going for it is official AWS staff answering questions.
I guess that's why I found it because I'm autistic and I don't agree with that conclusion, especially if someone has a science blog that's citing studies. There's a way to point out typos that's not rude or petty. The fact that people assume that intent or get offended by the intent without asking about my intent is the problem and why it sucks to be autistic a lot of the time.
I'm about to go watch the sunset with some snacks. Though to be honest, the main thing is just getting out, rather than what I do specifically once I'm there.
It's very slow with cool acid.
> FROM permission p
> LEFT JOIN role r WITH p->permission_role_id_fkey = r

<snip>

You're using the alias "r" here for two different things:

- a table alias for the role table
- a whatever (foreign key index object?) alias for p->permission_role_id_fkey

> the special but common case when joining on columns that exactly match a foreign key

I've been programming with RDBMSs since 1996. I'd say that approximately 99% of the thousands of JOINs I've written were based on PKs/FKs.

The example that you are attempting to improve already operates on PKs/FKs.

I don't understand the point of this proposed improvement at all
The idea, I imagine, is to differentiate what the julia ML stack offers over what is already on python, if it offers the same thing, but without the funding from facebook or google, why bother switching? It has to offer something more.
Photoshop CS2 is good.
does it work on regular typescript files, not definition files specifically? I can see this to be very useful for surfacing in code docs
if you use a public domain image as a starting point and edit it in ways that make it almost unrecognizable to the original image, is that legal?
{ x }, depending on where you put it, could be a block that returns the value of x.

5.times { x }

This could either call the given block 5 times, or pass a hash of :x => x as the first argument.
5% of your drives sounds like a problem solved by a car rental, not by owning two vehicles.
Agreed. This looks like something I will be coming back to. Rules of thumb, recommendations, and reasons for their recommendations -- I'm in heaven. Too few resources hit the sweet spot between introduction and arcana.
If and only if you can guarantee that connection will eventually be restored at all, which you can't. Also there is a maximum amount of retries in practice, because either you put in a maximum retry count yourself or eventually your users will close the tab/shutdown their computer/etc. (Also in real life, if you keep retrying indefinitely when the networks unborks itself you will have a massive thundering herd of retrying clients waiting to hammer your system and some requests can easily be lost in the resulting frackas)

More specifically, retrying can only establish exactly-once request processing semantics if you have infinite time to do so.
This is a good use case for an AST-based query compiler which would allow construction of clauses in arbitrary order. Using HoneySQL in Clojure, I frequently would write:

(-> (from [:cities :c])
(join [:population :c] [:= :c.name :p.city-name])
(select :c.name :c.pizza-rank :p.population)
(order-by [:c.pizza-rank :asc]))

It's handy for a lot of reasons, but unless I had mostly static queries (changing just some where clause params), I would always seek out a AST library rather than attempt string building for a SQL use case.
Where are the incentives taking the price of a Bolt that low? My LEAF just turned 7 and I'd probably buy a Bolt immediately if I could get one in the $11K range. (The LEAF has been great all around, but only being able to count on 75 miles is annoying from time to time.)
Decentralized Rendering – A crypto solution better than centralized options
Nuking the existing LICENSE file and replacing with the canonical one is a good move when it's your own developers' work. They could easily have picked "a" MIT license or screwed up the copyright string, and getting this normalized from the moment the repository is published is important.

But it's important that this -not- get applied to outside work from forks.
So is the source code available?
Internal combustion engines are very complex. Yet they can be produced really cheap.

It's a bit like microchips.

Vast sums (think tens to hundreds of billions) have been invested into the "machine that makes the machine". Cranking out engines at this point is relatively simple.

Path dependency is a very powerful force.
This breaks several of the HN guidelines and crosses into personal attack. We ban accounts that post like that, so please don't.

https://news.ycombinator.com/newsguidelines.html
More than 5k flights canceled on Christmas weekend
They do provide a real technical support team, you just have to pay for it.

And they state it will be driven by customers, partners and employees of AWS, so at least on paper they aren't fully relying on customers.
This sounds interesting. Does anybody have comments on how helpful it is?
Unless you’re heating your house in the arctic, a modern heat pump is still going to have a nominal efficiency well over 100%. So if you’re claiming your heat pump numbers above are nominal efficiencies, I’m really curious as to where you’re getting them.
>> if plasma containment fails, easily killing everyone in or near the plant.

That couldn't be further from the truth. "Magnetic containment" doesn't mean the magnets are holding in the reaction. The magnets are compressing/heating everything to start and sustain the reaction. Any containment failure will cause the reaction to stop instantly. Letting the plasma touch anything solid, any metal/wood/ceramic, would be like throwing a bucket of ice water on a burning candle.

The far more dangerous aspects of this project are the same any any large industrial process: compressed gasses in big tanks. High power electrical lines. Fire. Confined spaces. Gas leaks resulting oxygen displacement. Normal industrial only dangerous to those persons inside the building. But I wouldn't want to have any metal fillings too close to those magnets when they power up. At 20 teslas they might start moving though your head like a bullet.
for example,

why haven't you banned the user chunghuaming?

his account is EXCLUSIVELY devoted to starting hellish flamewars.

Your hypocrisy is in suit of the entirety of western countries.

Western Countries are now on the wrong side of history for this one.
To quote OP:

> I'm not asking for solutions here. Just sharing this.
Unless those 5% of rides start an airplane flight away, I can't imagine very many people are going to pay all the costs to own a car and all the costs and hassle/time-wastage of renting a car once or twice a month. They'll buy a PHEV, hybrid, or conventional car and wait for the BEVs to improve. (I'm a LEAF owner, but can trade cars with my spouse when I need to. I think twice in 7 years we've both needed to drive a distance in a single day where the shorter drive would stress the LEAF.)
Have you ever driven a plug-in Prius (the Prius Prime here in Québec)? It's got wonderful acceleration when using the all-electric mode.
What are the serious drawbacks?
Then disrupt that. Those laws can be executed and people are on sidewalks in tents. That’s the problem that has to be solved.

If they want to break the law with their $5k tiny home on wheels, then so be it until the laws open space for them. The state should provide property tax breaks for people who allow temporary homes.
I don't expect to just cut it off all of a sudden. They could announce the cut some years in advance.

Of course, if right now they already expect to cut off the gas a few years from now, they may as well not build new pipes.
One of my earliest memories is my grandmother giving me a musical christmas card that played a medley of Jingle Bells and Santa Claus is Coming to Town. I thought it was the cutest thing ever. This had to have been it. Thank you so much for reminding me of this old memory on Christmas. :)
I can imagine larger people getting stuck and causing blockages. I just can’t see any system better than stairs for fire escape. Even if we did eliminate the second fire escape, that saves something like 1sqm per unit which is probably worth like $10,000. If we split this cost over the 50+ years the building is expected to last for, it isn’t much of a cost if it provides even a small amount of extra safety.
And, not being in the industry, I don’t quite understand why.

Look at diesel electric locomotives. They run the diesel only for power and they use the electric motors for drive. Why doesn’t this model work in cars and allow us to get rid of the transmission like a full EV does?

Gas engines have an optimal RPM. Why wouldn’t a hybrid run the engine at exactly that RPM to generate the best charge?

Instead, they are complex vehicles with EXTRA transmission like components.
Sad but probably true. Nonetheless, all individuals or companies participating in exploitation and slavery and murder and torture of folks should be held accountable and punished, and those who don't should get rewarded. Can't wait to see that happen. Totally going to do some rather harsh google reviews on these ones.
I think part of it is practice and part is being a big dude.

Check out his book, Dignity. Super good. He does this in the US, hanging in the “worst” neighborhoods. So he has lots of practice.
I have done JS for several years and TS more recently. I think TS really fixes a lot of the issues that arise while building large systems in NodejS. But I think people are right to hate on the dependency nightmare that is npm. I could complain about several other things but really they apply to most popular dynamic languages...
Have always felt SQL is pointlessly complex for the overwhelmingly common case of inner joining a child table to parent via foreign key to primary key. Surely this could / should be made implicit somehow. I shouldn't even have to name the parent table, just let me select or reference parent table columns via indirection through the fk column should be enough.

I often think half the ORMs in existence might not have been invented if SQL was just a bit more ergonomic.
'Don't Look Up' delivers a scathing satire that occasionally veers off course
Sounds like spam to me.
It would also be easier to employ hypothetical future carbon capture systems at a small number of power plants compared to a large number of homes.
What does YouTube use for their go live feature from the browser?
We've banned this account for repeatedly breaking the site guidelines and ignoring our requests to stop (most recently https://news.ycombinator.com/item?id=29501677).

If you don't want to be banned, you're welcome to email hn@ycombinator.com and give us reason to believe that you'll follow the rules in the future. They're here: https://news.ycombinator.com/newsguidelines.html.

We particularly don't want the online callout/shaming culture here. nhttps://hn.algolia.com/?sort=byDate&type=comment&dateRange=a...
I got one of the AWS certifications.

I know it's a scam. HR teams don't. If ponying up $400 every 3 years gets me a more senior position with slightly better compensation, it's worth the ROI.
It turns out Barry Goldwater was right about the preachers.
I hit the same problem when compiling Cpython with the Cheerp[0] compiler in 2019.

I was also at first trying to patch the code but this practice is so pervasive in python C extensions that it was unwieldy.

My solution was also to write an LLVM pass, but different than the one explained in the article:
I wrote a pass that checks when a function address is taken and then immediately converted with a bitcast to a function type with a different number of arguments.
It then creates an adapter function that calls the original and pass more (or less) arguments to it with default values, and returns that function address instead of the original bitcasted one.

This is not a perfect solution, because in theory one can store the pointer and convert it to a different type later, but in the case of python C extensions this is sufficient to fix the issue (at least in my experiments), and has the advantage of not having any branch, and of not hurting code paths that call the function directly or with the right signature.

[0]: https://leaningtech.com/cheerp/
Good point about the quantity of active ingredients varying by species.

It’s worth noting that GP may have been referring to the physical distribution of active ingredients within the mushroom body. The “cap” of a mushroom almost always contains significantly more active ingredients.

Thus, 1 gram of stems may yield a significantly different dose than 1 gram of “caps”.
So why would those 3 fictional characters be ok, but the fictional character of God not be OK?

It is also telling you refusing the answer the question about other religion so I will go ahead and assume your like most and save your ire for only Christians making you a hypocrite in 2 ways.

So at the end of the day you are just bigoted against Christians, and are using secular desires as a cover for this bigotry, it is not religion that bothers you, but Christianity
I'm pretty sure Google pays these types of content publishers (like Reuters) very handsomely. In this case, the content distributor (USNews) also went out of their way to SEO their site with microdata[1], so I'm going to guess a lot of their inbound traffic also comes from Google searches.

[1] https://developer.mozilla.org/en-US/docs/Web/HTML/Microdata
> Given how we witnessed ironic edgelord racism on places like 4chan metamorphose into open, actual, earnest racism in like a decade or less, I'd say no, s*ckless do NOT get a pass on this.

Did some quick searches and couldn't find anything racist posted by suckless developers, but hard to search for. Got any links handy so one could form their own opinion?

> Besides, they tend to rant about SJWs a lot -- red flag #1 that they are for reals far right.

Yeah, sometimes that is true, but I prefer to see hard evidence before reaching any conclusion, especially when people start advocating to stop mentioning software because of it.
I like async. It's is easy to reason about. In what paradigm are race conditions avoided completely? I know Rust avoids "Data Races" but not race conditions as far as I'm aware.