skysight-inc/HackerNews huggingface dataset:
I think you underestimate how much green hydrogen is going to cost. Yes, it would be great if green hydrogen is going to be as cheap as petrol today. No need to worry. However, that is just very unlikely. Just basic physics how much energy you need to put in.

Solar panels are cheap. Batteries are cheap if you can use them every day. Indeed not everybody has a drive way.

Weeks on end sounds very dramatic. But the important number is what fraction of the year. Combining solar and means that a very large fraction of the year there will be green electricity.

If you need to produce large amounts of green hydrogen, then you need to massively overbuild green electricity production. And this increases the fraction of time that there is green electricity.

With respect to islands of BEV. That is a bigger risk for FCEV. It is very unlikely that a BEV island would have a hydrogen infrastructure. On the other hand, in an area dominated by hydrogen, it is still cheap to provide a few fastchargers. Maybe the elctricity won't be cheap but the charger setup is not that expensive, so you can expect them on major highways. Which will make FCEV the car for commutes.

In any case, I'm curious which country will actual role out a fine grained network for green hydrogen. I very much like to know what green hydrogen will cost 'at the pump' if there are no subsidies.
It should be obvious? He uses Racket, Racket has a very simple REPL, as opposed to CL which allows him to use the features he has heard mentioned about Lisp. Interactivity, short feedback loop, etc. This has been written thousands of times on here, I don't intend to repeat it here.
Children can't get boosters, what are you talking about? Paul Offit does not think anyone under 30 should. I suppose they could if they have a hardly functioning immune system, but a third dose might not work either.
Another Life implementation in Rust:
https://github.com/brundonsmith/life

And my own fork of it, with extra features:
https://github.com/DarkStar1982/life
Java is younger than Python.
That could be a fun activity for Boy Scouts; one boy, standing outside of the concrete shed, is watching a geiger counter, and the other sends Morse Code by moving a leaden lid up and down on a sample of Plutonium.
I actually am considering forming local only in person teams for tech projects/ventures, I think there is a market demand for it (and talent).

That may just be a factor of my neighborhood, as many people that could re-locate, relocated to the same areas.

Given all the commercial space available as companies vacated, its just the free market in action.

What I'm finding is that people rejected one environment, but have not been given a framework to navigate an unstructured life. And like a familiar structure.
Nah, we're all bumping Nrrrd Grrrls instead.

https://youtu.be/gzt7jP5XOtM
Neutrino beams are produced by having a muons circulate in an accelerator with long straight sections. As the muons decay, they release neutrinos moving approximately in the same direction the muon was. You modulate the neutrinos by modulating the muon beam. The simplest way to do this is to introduce or take away muons from the beam, but another option is changing their energy. Muons have a half life of approximately 2 microseconds in their inertial reference frame, but from the standpoint of an observer, relativity can make them seem to live much longer. Decrease the energy to the beam energy such that they're moving slower and it is as if their half life decreases, causing them to decay more frequently and thus produce more neutrinos.

The real issue is the detection end. Because of how little neutrinos interact with matter, you need a lot of neutrinos to pass through a detector before you can expect to see a signal, and then you need to distinguish that signal from noise.
Can’t you just bike for recreation? Biking is both “core to your identity” but also something you don’t do unless you strictly have to?
Or the change in paper size when you send a document that has been set up for letter paper and the person receiving it has A4 as the default, not to mention different styles and German quotation marks.
You are protecting the company from liability.

That's the only thing I can work out - they are worried about one person getting sick and dying on campus from a back to work mandate - then what happens?
> So why the fuck am I, "the low risk one", stuck at home alone all day? Who the fuck am I protecting?

It's not about you.

I'm not convinced that boosters should be required, in order to go back to work. But, really, to answer your question: It's not about you. It's about the people you're around. At work.

Just like everything else with COVID -- the reality is that we have to account for the affect on everyone, and not just ourselves. Individually, we have extremely low odds of suffering the worst from COVID. Collectively, hospitals have overflowed, 700,000+ people in the States have died, and many are suffering long-term health consequences.

It's not about you. It's about everyone.

That being said: I'm in Canada, where boosters are still uncommon. I've never heard of any booster requirements, just to go into the office.
OTC drugs have gone through _long-term_ studies. 12 months is not long-term.
How do you lose Python 2 code? The old interpreter still works.
Do you think career criminals go around town throwing eggs during Halloween ?

Vandalism implies actual damages...
No I mean that for the US army today the downside to the army being inefficient is that money is wasted. Not great, but not a disaster. For a different country that could mean the country gets invaded or the government collapses (like Afghanistan).
To me the issue is really consumer culture. If you have a densely populated area where households own multiple large cars, pave over gardens to park them, drive them on ancient narrow lanes etc, that seems to me a big cause of nature destruction. And extending houses to have space for all sorts of possessions that are of doubtful value, or could be shared with others. There surely are far more densely populated areas than SE England in poorer countries that just don't have financial means to destroy nature to the same extent. There's a council estate a couple miles from where I live that has some reputation of being "troubled", "unsafe" etc, but to walk around it is quite pleasant, it has far less traffic, far more trees and bushes in gardens, due to being poor. Frankly a lot more birds singing there. To me the answer is if we all try to live rather more simply in terms of consumption.
>why not let people decide that for themselves?

I agree completely.
Publishers fail to test interactions enough even with monolithic releases. Introducing an exponential number of component configurations makes it impossible. Ask Microsoft if you want direct experience.
I'm sure this headline has nothing to do with the massive supply of expiring vials that pharmaceutical companies are desperately hoping to turn a profit on.
It's a different aesthetic, but t- and p-series thinkpads are well supported by various linux distros and the experience is considerably smoother (and with better battery life) than 5-10 years ago.
Even simpler: a 10x10 image is taken and displayed on a 10x10 screen. The upper right 3x3 pixels are zoomed in on to fill the 10x10 screen.

Now each 3 pixels are being shown on 10 pixels. Each pixel is being spread across 3 1/3 display pixels. How does that work?
> attorneys do not typically need to revert and once a document is executed, prior drafts aren’t really that important.

this isn't 100% true. lawyers very much care about changes in legal codes over time. its incredibly time consuming to do historical legal research given how legal code changes are recorded. strike paragraph 5, insert 'foo' in section 5.3.1. etc.
I want to go back to work "a little bit" - ie. once a week or so when we all rally there.

I'm not looking for everyday, but one day a week would be nice to have more interactive discussions about the work that week etc.
No because it gets paid like a salary over the year with every paycheck.
Danielkrasner.com
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Ever tried to shoehorn ten or more footnotes into an email?
AFAIK they (or whoever) only have records for people whose clearances went through OPM
Classical computing challenges Google’s ‘quantum supremacy’
So I could go to another dealership and have the exact same experience?

This is such a weird hill to die on.
Voice message seems to combine the worst of both text and voice communication.
Minor correction: C code is extracted directly from the WEB. (web2c doesn't use `tangle`, the program that converts WEB to Pascal.) (Unless there's something I've missed…)
Show HN: Wage Inflation Calculator
I know a lot of people who have biked or walked to start and the end work day, regardless of if they were working from home or an office.
Probably has more to do with how office is calculating their collective risks in business-as-usual on site than with your specific risk.

And beyond that, limits on individual activity have as much to do with collective regional transmission rate as they do with individual risk (though CA numbers look pretty decent recently).
Not sure how old kids are or if you really have a choice at this stage, but it does seem Germany, France, Scandanavia, Taiwan have halted at least Moderna for the youth and now even Pfizer (Taiwan).

Saying because people in my family didn't know about this, and would have wanted this relatively new information to help make a decision.
It adds about 7 kg.
Perfecting the New York Street
Owl: A WIP portable Wayland compositor written in Objective-C
And disability and retardation. Criminal on so many levels.
https://www.unicef.org/supply/covid-19-vaccine-market-dashbo... says that 20.9 billion doses have been secured, or about 2.6 doses for every person on earth. Now, distribution is undoubtedly still a problem in some regions of the world, but it does look like there are plenty of doses available. At this stage, I don't think taking an extra dose equates to someone else not getting one.
I've been wondering about the connection between the "curling effect" and the exponential curve of e for a while. Do you have any links where I can learn more in depth?
Simply fantastic. I love Conway's Game of Life. This page makes it easy to observe a huge variety of creative patterns.

The book "The Recursive Universe" by William Poundstone is a fun look into the Game of Life, pairing observations and thoughts about the game with real world physics and life.
"Handed them" may be an understatement, given the scope of the OPM breach.

https://krebsonsecurity.com/2016/09/congressional-report-sla...

https://en.wikipedia.org/wiki/Office_of_Personnel_Management...
I am not a lawyer, and don’t work in law. I was just observing how that industry is cemented to Word. I personally hardly ever use word, and have no need for a Linux replacement for Word. My work is all plain text mostly in sublime or vim.
No one has mentioned that people don't want to take public transport because of pandemic risk. Public transport ridership is down by a lot and hasn't recovered.
The Demon Core also came to my mind when reading GP's comment. For those unaware, the Demon Core was a piece of radioactive material and received its name after two people died in different accidents while experimenting with it on criticality .

https://en.wikipedia.org/wiki/Demon_core
Yes, but they are not mandated by anyone.
well... when they start doing all their flights on electric engines in 2022 I guess we'll see if it makes sense... did you read my link?
Maybe a whatwg equivalent for desktop ux is needed ?
Are you saying the debate would go in wider and wider circles, maybe meander around a bit?
How the TypeScript Compiler Compiles
Hi

1)

It's not a bad idea, maybe this could be improved to include as well flats to be rented for holidays?

I'm saying this because in Switzerland during the last years there have been some scams about holiday apartments available to be rented (both cheap & avg-expensive) as they didn't actually exist (pics of Ikea & similar were used, addresses didn't exist, contact phone number wasn't related at all to the location of the apartment, etc).

2)

Asking me first of all for my email address completely stops me from trying out your product (especially now as I understand it as being a proof-of-concept?).

3)

"scambuster" encompasses all possible scams => you probably need a better name that targets better your area (housing).

4)

What do you mean exactly with "Contact host to further investigate"? Will you call whoever has posted the ad to try to understand if the offer is legit or not? If yes, will you then e.g. ask questions related to the neighbourhood that you see on google maps to understand if they know what they're talking about? Ask about how the local soccer team is doing? Sounds like a very time-consuming therefore costly service... .

5)

In the context of holiday apartments, if you end up supporting that, 5 EUR per request would definitely be too much :)

Wish you a lot of luck!!!

Cheers :D
Why Your Team Has Slowed Down, Why That's Worse Than You Think, & How to Fix It
That's because the metal case can go live if there is an internal short. That's what that protects against. But agreed, that really caught me out. I had a blind spot for days due to the afterimage.
I'm currently waiting for my EAD (Applied for a GC via marriage to a citizen). What's your opinion on expedite requests with the reason being financial loss (I have a pending job offer from startup)? Is it worth trying?
> People in California who are 18 and older are eligible for a COVID booster shot as long as at least six months have passed their second dose of the two-shot Pfizer or Moderna vaccine or two months must have passed since their Johnson & Johnson shot.

What's the protocol for six months having passed but also tested positive for COVID? Like, this guidance here is pretty clear, but it doesn't seem to be enough to judge personal risk tolerance.
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This limitation will help motivate advances in battery tech.
With neutrons, no. They’re slow, isotropic and thermalize easily.

With neutrinos that’d be a different story. They travel at the speed of light (or just below it - depends who you ask) and they aren't readily absorbed by anything. Therefore they can travel through the earth instead of around it.

Problem?

Generation, modulation and detection of neutrinos.
Not everyone has a bad office environment or commute they're trying to avoid
How not to get users to talk to you: popup surveys.

"How are you liking [the app]?" popups always get me to click on the negative option, regardless of my actual feelings.

Why? Because I want it to go away as soon as possible, and the negative option seems to do that more often. I don't want to continue the survey or get directed to the app store. Leave me alone.
Open Source Vibrotactile Haptics Platform for On-Body Applications
I have done something similar, what I really found worked well was to wrap the bash scripts in python to instrument them and if they just operate on data, you can even spawn another command and run them both at the time confirming that the output matches.

Great way to have confidence in a port and provide for a fallback path. Eventually the new code will take over the old code and the old code will wither and die.
Hahaha, children can't get boosters yet. You do realize there always someone next to blame when the magical solution magically doesn’t work, right?
How to Win at Interviewing
> it's a moped, you need a driving license, insurance, a license plate, and all the legal equipment of a moped (e.g. lights, rear view mirror), and commonly type approval (which is going to be very, very expensive).

The amount of bureaucracy in Europe for completely mundane things is completely unbelievable.

Getting a Driver's license in France, for example, is an uphill battle against a very hostile administration. I can completely see why some tried to dodge some of these absurd regulations by innovating in the e-bike space.

Having a tiny bike barely able to break the 25mph limit be considered a moped just because it has a throttle as well as pedal assist is completely ridiculous.
Thanks! What is the prevailing wage for a SaaS CEO in Bay Area? Is there a website I can check for prevailing wages in general?
Modulating neutrinos is easy. You just control the production rate. For example ramping a fission reactor up and down will create pulses of neutrinos (though it's not terribly efficient). For practical neutrino communications, you'd want to use a muon beam to generate your neutrinos. The neutrinos are emitted roughly in the same direction the muons were moving when they decay, so you can make a directional beam, and by controlling the number of muons decaying at any given point in time, either by directly controlling the number of muons or how much time dilation they experience in the beam, you can ramp up and down neutrino production.
Point 1, exposing a potential denial of service attack via expensive queries, was always a point of contention I had with GraphQL. I'd love to explore using GraphQL in a project but security is typically a high priority. What is the generally accepted way of preventing denial of service attacks using oversized GraphQL queries?
This approach kind of exploded on me, and I couldn’t find any window anymore. Recently discovers tab groups, and that you can name browser windows. With those two in place I actually see some hope of recovering control.
"Parents will be allowed to work at home indefinitely without seeking prior approval from their employers until their child turns eight." There have to be some sort of limits on this left out of the article. I cant think a cashier can elect to work from home if they have a 4 year old.
Paying attention while a computer does a task for you automatically and correctly 99.9% of the time is basically impossible though. That point has been made many times before.

I wonder if this will paradoxically lead to Tesla's becoming less safe overall as the software improves, because errors will start to become uncommon enough that people really stop paying attention.

From the sound of it it is currently unreliable enough that most people know that they really do have to pay attention.
Of course, clients never know the facts as well as the lawyers.
And lawyers never make mistakes for clients to edit.
Yesterday I saw a document which claimed that a security agent had made available a $20 million dollar facility.
The term they wanted--and would have corrected, was "Lender."
There are a few programs that let you edit pdf's: Flexipdf is one of them. Otherwise, you get a paper copy with edits, or worse, an email with references to lines, which you can't correct because then the pagination changes.
Yep, we have an oldie sticking around for that purpose alone. The lock is worth more than the bike (which is the only way you get to keep your bike in NL ;) ).
The data-rate would be far below 1 bps. The event-rate in SuperK [1] from the Sun was ~0.1/day/kiloton of water.

Signalling to submarines would require a Fermilab or T2K-caliber accelerator with an ability to direct a beam, with a properly-oriented pion-decay hall, generally in the known direction of the submarine and highly-synchronized clocks (or a clever time-structure strategy) to allow coincidence-detection for background-suppression.

For scale, the MINOS detector [2] detected a couple thousand events with a couple of years of beam-time.

[1] https://en.wikipedia.org/wiki/Super-Kamiokande#/media/File:N...

[2] https://arxiv.org/pdf/1103.0340.pdf
> I'm teaching college algebra right now and introduce 'i' algebraically as a solution to x^2+1=0... but then we talk about graphing quadratics and there's no simple connection between the geometry/graph and the algebra.

Take an equation like x^2 -2x + c

When C is some large negative number, the roots are symmetric about x = 1. As you increase C, roots are real until C = 1, basically the two roots meet in the middle.

When you increase it beyond 1, the roots become complex numbers, but they stay symmetric, they "lift off" from being real into being complex, but still symmetric (conjugates) where 1 is always the real part but the imaginary parts become sqrt(C - 1). You can conveniently imagine the complex plane on top of the real XY plane and the roots go orthonogal to the direction they were going when they were real, from the point where they met.

That's kind of how I visualize it for quadratics. For higher orders you cut a complex circle into n equal pieces. Haven't quite figured it out in my head yet.
They use ATS. Think text.
You don't modulate the neutrino beam itself, but you could modulate the pion production beam. For typical neutrino beam experiments this is done with a large magnetic horn which focuses/defocuses (+/-) charged pions which then decay to (anti)neutrinos and (anti)leptons. By changing the current in the horn you could modulate the intensity of the beam to send data.

Needless to say this is woefully impractical, would require an extremely large neutrino flux and detector, and would have an absolutely abysmal bit-rate. Not to mention you'd likely only be able to send messages in one direction. But it could be done.

see:
https://www.fnal.gov/pub/today/archive/archive_2014/today14-...
Then you're simply being pedantic, and illustrating the inherent danger of free-for-all negative externalities. If the polluting was done far enough away, it doesn't matter?
> It does open up some niches,

I would love to be able to run Nuke, so definitely one of those niches. There's not much *nix only software that can't be run on macOS, but there's definitely lots of macOS software not able to run on *nix. Being 1 reboot away from using whichever is needed is dream a little dream territory.
> It lets me start fresh and restart my mental model with the line of codes below the error handling block.

My code is almost exactly:

err := doThing()

if err != nil {

return err

}

err = doAnotherThing()

if err != nil {

return err

}

etc.

There's no need for me to "start fresh". Each line of actual stuff doing might return an error which needs to be returned. That's it. It's a complete waste of space and inhibits readability to absolutely no benefit. And this is extremely common across our code base.
Yes, but if you know what these applications are used for and read between the lines Houdini is used for simulations, Maya is used for (by hand) animations and UE is used for scene composition.
You could simply place `l.unlock()` underneath the function call to remove the overhead of the defer.
Correct me if I'm wrong - but haven't polygraphs been thoroughly discredited?
No, as the article tries to make clear, it is for handling of nuclear weapons-related information only. And yeah, people get it because they need to work in a lab or otherwise be proximate to the work, but aren't working directly on it themselves.
But what happens "magically" at 255 pounds of weight that it falls in another category?
Glen de Vries, Shatner Crewmate on Space Trip, Dies in Plane Crash
If you can, working with the logarithms of the intermediate large or small values is one way around the issue

One example talking about this here: http://aosabook.org/en/500L/a-rejection-sampler.html#the-mul...
I don't directly deal with Windows desktops but am directly responsible for an estate which includes north of 40k Windows Server systems. As a result, I do have a pretty solid handle on managing Windows at scale (at least in the datacenter). We don't see a BSOD a week across that entire estate, let alone a single system.

BSODs are a sign that something is SERIOUSLY WRONG. Usually, failing hardware or sometimes shitty drivers. Almost never is it a sign of something fundamentally wrong with the operating system itself.