skysight-inc/HackerNews huggingface dataset:
This is very interesting.

It's not clear though if this is a pure Diesel engine or a hybrid between an Otto engine and a Diesel engine. I tend to believe it's a pure Diesel, but that would be a pitty.

In an Otto engine, in the first cycle you absorb in the cylinder a mix of air and fuel droplets, which you then compress in the second cycle, and detonate using a spark in the third cycle. In the last cycle you release the burnt gases.

In a Diesel engine, you absorb just air in the first cycle, which you then compress in the second. You can compress to much higher pressure (and temperature) than in the Otto engine, because the compressed air can't auto-detonate. You then inject fuel, which ignites immediately (no need for a spark plug). You have a slight problem: apart from the first few particles of fuel, the next ones will not find too much oxygen around, since it was already used to burn the first fuel. You solve that by insuring the geometry of the cylinder and piston is such that there is good turbulence going on. Lots of computer simulations going on in the design of a good Diesel engine.

With hydrogen, you could in principle get the best of both worlds, and a bit better even. You could absorb in the first cycle a mixture of air and hydrogen. In the second you compress to a high pressure. Hydrogen supports much higher pressures than gasoline (it has an octane rating above 130). In the third cycle you inject a bit of diesel. That triggers its own ignition, but also the ignition of the hydrogen that's about evenly mixed with the oxygen in the cylinder.

A problem with diesel engines is that they run at a much higher temperature than Otto engines. That results in much better efficiency, but also in the oxygen reacting with the nitrogen in the air and resulting in NO2 and NO3 pollutants (and the whole Dieselgate saga with Volswagen). With the hydrogen-diesel engine, if you run the mixture a tiny bit rich in hydrogen, then you won't have enough oxygen to burn with the nitrogen, so you end up with less pollution.

However, if instead of an Otto-Diesel hybrid, you have a pure Diesel, then you need to use two injectors, one for the diesel fuel, one for hydrogen. That's a lot of added complexity.
how to build a nuclear reactor step by step

Answer: Building a nuclear reactor requires careful steps and is not recommended for the inexperienced. The first step of building a nuclear reactor is to choose a design from the list of designs already certified by the Nuclear Regulatory Commission. Once the company is approved, the NRC staffs, stakeholders, and public will review the design. After that, the company must build the power plant while the NRC staff monitors it. It typically takes about a decade or more to build a nuclear reactor.

In order to build a nuclear reactor, one must have knowledge of high voltage safety and be familiar with welding techniques. A chamber can be found on eBay or made from parts purchased for several hundred dollars. Flanges are usually either KF or conflat style. Fill the pump with quality diffusion pump oil and attach the inlet to a valve which connects to the chamber. Attach the outlet to a mechanical backing pump capable of reaching at least around 75 microns. Test the high vacuum pump by turning on the boiler on the diffusion pump.

Next, a feedthrough needs to be rated for the cathode voltage that will be used, typically 40kv.

Background: A nuclear reactor is a device that uses fission to produce electricity. The fuel rods are immersed in water, which acts as both a coolant and neutron moderator.

---

I've chuckled on the eBay part.
Dollar cost averaging was how I managed to stay sane...
I think to a lot of people who pay attention to this sort of thing (eg the crowd already familiar with tools like reveddit) might not be a shock but it is a rare case of it being admitted in clear terms with specific examples which correspond to the sorts of claims that are often dismissed as rumors by third parties. While not anywhere near as high profile, it's kind of like how anyone who was paying attention probably had a decent idea of the kind of surveillance governments might be engaging in, but it was still a big deal when Snowden released the documents making it undeniable.

As the thread says, Twitter used a bit of trickery by calling it "visibility filtering" so they could lean on the technicality that "we do not shadow ban", because they too preferred to leave in some plausible deniability.
wow, yeah it does! that is so weird i wonder how that works...
This is especially true on macOS Catalina or later with SIP enabled. The entire operating system is mounted read-only [1] and your local changes are effectively contained within your user directory.

[1] https://support.apple.com/en-us/HT210650
Had the exact opposite experience with N4j.

Easy to operate, scale and run. We started in 2014 and in 2018 did a large scale enterprise rollout with a large customer. The performance test we put it through loaded millions of nodes and millions more edges with non trivial data and scaled to 800 concurrent users (could have been even more but for the fact that the web servers we had for this test scenario started to max out since the system was scaled for 200 concurrent and we were basically stress testing it at this point).

In the early days, there were a few edge cases of query incompatibility between versions that we caught with unit tests, but otherwise very stable, easy to operate, and easy to use. Cypher is one of my favorite query languages.

Very surprised that people had issues with it.
My fiance quit working this year, so I asked him how he feels being a statistic making economists anxious.

"good"
Location: Singapore

Remote: Open to remote, but hybrid preferred

Willing to relocate: No

Technologies: BPMN, UML, Agile, Python, Pandas, NumPy, SQL (MySQL)

Résumé/CV: https://www.linkedin.com/in/lilia-melnikova-30aa42a8/

Email: liliagoncharo@gmail.com

I'm an experienced business analyst and a project manager specialising in FinTech (stock trading apps, crypto) and RegTech (risk management, compliance) projects.

What I do:

- I talk to bussiness and other stakeholders their language and find out what they really want (even if their request is unclear as a winter sky).

- Produce a project plan/roadmap.

- Write documentation on business and functional requirements, and user stories, and create conceptual data models.

- Decompose requirements up to Jira tickets and produce task descriptions so clearly that even a junior can swallow them.

- Help with UAT, checking business logic of a solution.

- Write documentation of implemented solutions and features.

N.B. Currently in Singapore on a dependent visa.
With the Windows and Mac market this is not really realistic.

And yet here Valve is with SteamOS and the Steam Deck.

It doesn’t actually have to capture the market, it just has to exist as a threat. It’s worked for ages threatening to move to Linux to get steep discounts from MS.
Maybe I'm confused. From the Wired article and other sources, it sounds like they have abandoned the idea doing any form of hash comparison or client-side scanning. Am I reading that wrong?
He mentioned wanting to be close to the sea, which might give Peoria the upper hand. But then he also mentioned valuing lower taxes, so Muncie might be the best fit after all.
Or a little recurrent ALU side-chain glued on. It would at the very least put a stop to the "It can't even multiple two four-digit numbers correctly," squad which I admit, I can't do in my head either.
A 50lb dog has similar effects and a bit more utility outside of bedtimes.

But you don't have to walk your blanket.
Unfortunately, this has already been figured out. ChatGPT is no worse at this than average YouTuber. See https://imgur.com/a/8EIEGL7, via https://old.reddit.com/r/ChatGPT/comments/zdjowg/i_had_the_w....
Yes, Bungie has 1 IP that is alive and people make "This is it, D2 is dying" video every year.

Bethesda alone as more IPs even if you don't take other ZeniMax's IPs in to consideration.
I had wondered about that before. My guess is that Google considers Waze and Maps users to be different type of "navigators", with Waze being a self-selecting group of folks who want crazy routes to shave a few seconds here and there, while the Maps users are more mainstream and just want a sensible route with options. So they may have hesitated to give the "crazy" option to them.

Another thing, I suspect there's a significant resource cost in constantly re-evaluating these few-second saving opportunities that may not scale well to the size of Map's user base. Could be wrong here.
That wouldn't matter, in a comparable case the fraud victims are Tesla investors who lose out when the faked tech is revealed as such.
In the latter case they reported the car as stolen after it had already been returned!

Don't worry, that happens. Hertz will not hesitate to call you, saying that the credit card used for the rental has been maxed out, and could you supply a different credit card.

Always keep your receipts.
i would not call a scam using the word "illegal", even tho it does describe it.

A scam transaction is one where one party would not have committed said transaction had they known the truth. It is an unwilling transaction (aka, scam).

An illegal transaction is one where both parties are willing, but the state deems said transaction is illegal under their purview. I argue that there should be no such a type of transaction - the state should allow _all_ transactions from _all_ parties that are willing. The illegal part should only apply to an action resulting from the transaction, such as hitman for hire.

e.g, The act of paying someone to kill someone else is legal, but the act of killing is illegal. The act of paying someone for an illicit drug is legal, but possession is illegal.
Could you include a link that isn't a video that leaves my eyes and ears bleeding?

Plus from the video: "do you have a thorough idea what OpenAI is doing, neither do I" - cut to strobe light and rock music. Jeesh, can't see that as support.
I think Game Pass is a big loss for consumers.

* The player doesn't actually own anything. I routinely play games I purchased 5+ years ago, which is a fantastic long term entertainment investment.

* The player doesn't have a direct relationship with the game studio. Microsoft injects themselves a middle man, and is essentially rent seeking.

* The player has much more limited rights to run the software the way they want to. I can legally buy a switch cartridge, a switch, and run the switch game on an emulator. Nintendo hates this. My access to Game Pass games is legally limited to ways Microsoft considers appropriate.
What's the best way to write those user stories? Certainly not plain English; you'd probably want to use some kind of pseudocode. Ah, but it would be good if you could run that pseudocode and see what the results are in the happy path, without worrying too much about what happens when something goes wrong. We have that, it's called Python, so that tends to be how these user stories are expressed.
Elon is rich enough to bend reality around him. Does not always mean things are actually changing permanently.

NASA could have potentially launched the rockets SpaceX is currently. It's a matter of who gets the funds as much as anything. Although the narrative we all must live with, especially now he owns an echo chamber, is that only he can achieve these things. Which is the reality? Showman vs genius? Shall we buy wikipedia and make the definitive record?
Langchain seems to be an active python repository as well
So, it can't be preserved digitally, like shown in star wars prequel.
Apple Music Sing karaoke won’t be compatible with all devices running iOS 16.2
Both go back to the same place though. It doesn't matter if the water evaporates, or trickles down to groundwater, it's the same. If it evaporates it goes to the clouds, and then comes back down as rain, and eventually back into the groundwater.

The real problem is the water that is shipped out in the crops. That's why people say that Isreal is exporting all its water in the form of watermelons.
The article does address that somewhat:

> There won’t be a single perfect solution to the problem of concrete. One potential advancement is green concrete, which is decarbonized by changing the recipe, production process or longevity. Another is to capture emitted carbon at cement plants and store or reuse it.

Scroll down to the bit about ETH Zürich's research and there's some interesting stuff beyond the long opening about history.

> Block’s early research was focused on heritage architecture — vaulted cathedrals and other historic structures. “Our modern engineering tools are quite inadequate in explaining how safe these buildings are,” he said. Sometimes, he went on, digital engineering models of old buildings concluded that there should be no way they could still be standing, that they should’ve collapsed centuries ago. But there they were, solid, unmoving. Maybe, Block thought, there was something wrong with the models.
The plan was "if my son becomes an international pariah I'll stop teaching".
You're right, but I don't think there's any reason for the sarcasm. People are allowed to personally lament actions of others, while fully realizing and even supporting that they are legal. And even hope for circumstances changing, like I'm fully allowed to complain about the rain and wish for sunshine, without someone putting me down with "Oh no! A functioning ecosystem doing its job!".

People would even be allowed to try to effect change. In this case, it would mean weighing saving a likely insignificant amount of time for a subset of people, against residents of the street dealing with constant traffic. What is "fair" depends on the exact circumstances, but taken at face value, I suspect if one were to effect regulation such that speed bumps are added, or through traffic prohibited, or the path being made less convenient, then almost none of the insignificant-time-savers would even notice much. They'd take the new suggested route and be likely just as happy.
I would recommend using Control Surface Library as your framework. It is robust and flexible and has lots of different hardware options that have already been integrated into this framework by the community. This enables you to go all out on design ;)
https://github.com/tttapa/Control-Surface

Together with a friend I've been working on this beasty project in C++ (initially without the CS lib). We did some liveshows back then and decided that we needed some more control gear. But not just a laptop focusing launchpad, we wanted to forget there was even a laptop (or other hardware) attached to this controller, so that all our attention and focus would be on the music and the crowd, and above all: we wanted something that would instantly announce your presence on stage.
So after more than a decade of work (on and off), and a lot of iterations, we have build 2 quarter circle 'cockpit style' midi controllers made from bend aluminium, spanning more than 2,5 meters combined. We've made our knob design with the idea that you would literally be able to fold your laptop and store it underneath the controller, and perform a liveset without looking at a screen.

The last bugs are still being solved, so we hope to test this in a live setting soon :)
(For some pictures see: https://photos.app.goo.gl/8NHQM1Us71oJyB5B9)
RasPis and the like are literally more powerful than your typical desktop PC 20 years ago. They can run all kinds of compilers, interpreters etc just fine, including those that are bootstrapped.

Real embedded is more challenging, but even then... DOS ran on 640 Kb of RAM for userspace, and it had C and even C++ (albeit pre-ISO) compilers, and many embedded platforms these days come with something comparable. Forth is really only necessary if you want to bootstrap on really low-memory stuff.

"Why" is a different question. ~
Why did you ask? Are you a customer? Or an (ex)-employee?
Oh, my friend mjambon tried chatgpt for summarization, the results are pretty good! (from what I can tell from quickly skimming the article in question!). [1]

1: https://twitter.com/mjambon/status/1600673768879230976
Yes, I know. And when that happened, there was a sharp drop in quality in Google Maps as they tried to add Waze features into Google Maps. I can imagine the same drop in quality in Waze if Google starts doing Google things to it.
It's just the normal up-and-down of sensational submissions on HN. The 'wow' factor is a function of the attention you're paying to it.
"Still trying to process my emotions on learning that @twitter blacklisted me. The thought that will keep me up tonight: censorship of scientific discussion permitted policies like school closures & a generation of children were hurt."

https://twitter.com/DrJBhattacharya/status/16010379837793894...
One of my favorite internet happenings is when 4Chan (I think it was 4Chan) used stars and airplane data to get Shia LaBeouf's flag location and steal it. Not because of the political message, but because it was just entertaining and impressive in general. I think it ended up being in Tennessee somewhere. In any case, this wasn't exactly a secret, journalists were invited (though they had their cellphones confiscated at the gate, apparently.) If they really wanted, they could use obfuscation to make the sky, etc unrecognizable or in a totally different location.
That's why it's not only important to have global trade but also fight the kleptoregimes that undermine its positive effects by stealing from its own people I guess
It is a highly unlikely process that is the result of a chain of events, not just at the "creation" end but also at the "discovery" end: that the bones are close enough to the surface to be detected, but haven't been eroded away yet. The fossils we have are from hundreds of millions of years, we only got to get the most common species which lived in the places that were good for fossilization, the fraction of a fraction of all animals that lived.

https://www.nhm.ac.uk/discover/how-are-fossils-formed.html
this hypothetical 3 -> 4 upgrade would run into a lot of the same issues.

Presumably the killer feature here is that it would be faster. Or at least have the potential to be faster because of less constraints on the c API. But for a lot of python applications, speed isn't all that important. After all, if it really needs to be fast, you probably aren't doing it in python (unless python is just a thin wrapper around a lot of c code like numpy).

And for changes to the C API, it would probably much, much harder, maybe even impossible to automate migrating libraries to the new API. The only way I could see this working well is if you had some kind of shim library between the old API and the new API, but that adds constraints on how much you can change the API, and might add additional overhead.
So instead of doing what you really want to do you are doing something else. What is this something else and why do you really want to do it so much that you are putting off doing what you really want.
I'll add, there's some fascinating stuff towards the end, like this:

> Block went for a walk on top of the vaults [Kings College Chapel in Cambridge]. “In thickness-to-span ratio, they were proportionally as thin as an eggshell. They were so thin I could feel them vibrating. When I jumped, I felt them bounce. And yet they were still strong and standing. When you have an experience like this, and really feel how exceptionally thin this totally unreinforced structure is, it really motivates you. You realize: Damn, we have forgotten something. We have forgotten this knowledge.”
This post has got 75 upvotes in the last 1 hour. Surely there must be some merit to keeping it up.
Former pro video editor here. The second video looks like bullshit.

Serious people would show the video at normal speed, then slowed done, and added timecode, as well as documenting their methods. They also wouldn't make assumptions about what was going on, eg 'tries to restart the engine'. These black blobs look to me like compression artifacts, from zooming a video from a phone camera that was compressed for storage and then compressed again when uploaded to social media.

Also, even if there was an object and the engine went out (which seems unlikely, most drones are pretty fragile and would be destroyed by a propellor), losing power doesn't mean losing all control of the plane. Manual flight control would still work to some extent. But I don't see last-minute efforts to avoid a collision that tragically failed; it looks like the fighter was pointed straight at the bomber.

I haven't checked to see if it originates on 4chan, but it wouldn't surprise me. No-standards amateur sleuthing is the norm there, occasionally they get something right but their hit rate is like 5% at best. That's not stereotyping, I've been a regular there since 2008.

-------------------

EDIT:
fieryskiff11 33 minutes ago [dead] | parent | next [–]

>I've been a regular there since 2008
Your username makes sense now

Not sure why, it's a made-up word I came up with in the 1990s for myself and is not meant to convey any secondary meaning. 4chan allows persistent usernames but I've never bothered to create one.
That's talking about article submissions, not comments. Couldn't read the PDF because the link is broken.

More than 95% of the time I see a flagged account on HN, they post complete garbage that leads to more flaming replies if not removed promptly. HN has a very limited set of moderators, like one or two, who cannot police every comment 24/7.

>Discourse doesn't secretly remove content and is popular.

Popular where? In corporate and niche business use cases? What are some public Discourses that allow everyone to post?
I was actually responding to your lamenting how this argument is alive and well. Do you notice how you are self-contradicting?
Exactly! I though this thread was part of Elon's pledge.
> It took a deep understanding of VERY specific tools (shout out to ASIC EDA tools). But that doesn’t matter on a technical interview. So you hire somebody who can Leetcode, but can’t figure out how to fit all the pieces of the actual job together.

What would you suggest testing? If you ask about the specifics of a given framework, you'll get someone who's memorized that framework but can't actually think. If you get someone who can code and has a decent level of general intelligence, they'll generally be able to learn a new API.
Add HN to that list.
How can you ship something that you do not know anything about, isn't this unethical.

What happen if there is a bug in the calculator , are you going to ask the AI to fix it?
It runs on the inputs you give it, not the ones inside your head. If you don't specify what kind of notation you want, then colored-in notes is a perfectly reasonable notation for it to suggest. If you want something else, you can literally type "Give me another idea that isn't related to color" into the input box.
Use-package merged into Emacs-29 branch
commit e950f5a663ad3501e50f43ef6c0a7fd220e0c1f2
Merge: 9c21eae60c 5bcd0cee0f
Author: Stefan Kangas <stefankangas@gmail.com>
Date: Thu Dec 8 18:01:30 2022 +0100

Merge branch 'feature/use-package' into emacs-29
> The number of millionaires -- and billionaires -- residing in Monaco is on the rise

Inflation will do that.
I'll give you two extremes:
- a grandma who is not that comfortable driving, not that comfortable with technology, etc. and is never in a rush.
- a urban taxi driver whose livelihood depends on hustling to destinations as quickly as possible, even through trickier driving scenarios.

If I told you one uses Maps and one uses Waze, could you guess which one is likely which? That's the two use cases.
We should really let go of words per minute or typing effort as a useful metric.

Most of our time is spent thinking about what to write not the actual writing.

Also nothing stopping it from being a voice input rather than typing.
Thank you for your terminology. I will now go out into the world and discuss your term, "shadow moderation", at length with my fellow peers. We need more independent thinkers like you in the world.