skysight-inc/HackerNews huggingface dataset:
Imilcin is precisely right. Rockets are an exception, in that they work perfectly well in a vacuum, where a propellar would do nothing.

Rockets are easiest understood by concervation of momentum. In the case of a rocket, this is for the combined momentum of the rocket and the spent fuel/exhaust. The rocket "trows" the exhaust backward with a momentum exactly opposite to the momentum gained by the rocket.

A wing or the propellar. They accelerate the aircraft by "throwing" air in some direction, with a momentum per unit of timemass equal to the acceleration they cause. (In order to maintain their altitude, this acceleration must counteract the "gravitational acceleration", g of 9.81m/s^2)

This all follows from Newton's laws, where "Force" is the time derivative of momentum F=(dp/dt)=ma => a=(dp/dt)/m. With conservation of momentum for the aircraft + air, one gets:

(dp_aircraft/dt) + (dp_air/dt) = m_aircraft * -9.81 m/s^2

If dp_aircraft/dt = 0 (level flight), then:
dp_air/dt = -m_aircraft * 9.81 m/s^2

In other words, lift is generated by accelerating air in the opposite direction of the lift.

Airodynamic theory, including Bernoulli and Navier-Stokes equations only serve to explain _how_ the wings accelerate the air down.
What implications does murder being natural carry?

For instance, most responses to murder are natural in exactly the same sense that murder is natural. Things like a legal system and imprisonment are sophisticated group responses to murder, but they aren't somehow separate from our nature because of that, they are part of it.
If your table is simple (values, no markup), try DataGridXL: here's a One Million Cells Demo that loads in an eyeblink: https://www.datagridxl.com/demos/one-million-cells. (Disclaimer: I am the maker)
Good news: in stock including US shipping at https://shop.pimoroni.com/products/raspberry-pi-zero-2-w for less than $25. Probably cheaper from US resellers but I'll leave that to you. Yes, one per customer, which is a reasonable policy right now.
No Squid Game Halloween Costumes, New York Schools Say
I presume that's to short-circuit the whole…

– "Can you send me the foo report?"

– "Sure here it is"

– "Thanks"

– "No worries"

If someone says 'thanks in advance', I presume it's to soften the lack of reply so I don't think it's rude. Also means I don't need to acknowledge their thanks email & we can move it from a 4 email conversation to a 2 email one.

Between colleagues that are already dealing with a lot of email I'm all in favour. (Assuming I already have a decent relationship with this person)
gsed -i, Make, AWK, Tar
Amazon Kindle Paperwhite Signature Edition Review
So here's my comparison between cars, boats, and aircraft:

Car Boat Air
Worst case you can safely stop Sometimes Yes No
Reaction time required 100ms Minute Minute
Trajectory tolerance 0.5m (city) 5m (harbor) 5m (takeoff / landing)
Trajectory tolerance 2m (highway) 100m(open sea) 1km(mid flight)
Collision survivable Yes Yes No

Please add or point out my mistakes (I kinda pulled the numbers out of my ass).
> "Veuillez agréer, Monsieur, l'expression de mes sentiments les plus agréeables"

That would actually be somewhat familiar for a formal letter. You probably wouldn’t use "les plus agréable" here but rather "respectueux" or "les meilleurs". People just copy and paste them from the internet nowadays when they need to use one.
I can tell you from personal use as someone with Bipolar Disorder, my ding-a-ling works fine before I start taking it and after the first week I have nothing but a wet noodle down there. So no, the SD is not caused by depression, it is caused by Prozac.

The mechanism of action how this helps is probably so simple that people who have over complicated thoughts cannot see the answer. Serotonin is made from tryptophan by the TPH enzyme. But Tryprtophan is also turned into kynurenine by an enzyme called IDO. This kynurenine pathway is crucial to resolving inflammation and the IDO enzyme is directly activated by inflammation.

When you take prozac so much serotonin builds up that it starts inhibiting the TPH enzyme and pushes more tryptophan down the kynurenine pathway and resolves inflammation.

Depression in probably most of the cases is an inflammatory disorder, which is why prozac helps some people with depression.

It has been shown that COVID-19 infection results in alterations of the kynurenine pathway. I will make a guess that prozac will end up helping some people but not everyone.
Yeah, the Nintendo Switch has been sat at the #1 spot for 33 consecutive months in U.S. Quite the streak!
Because it is a shared resource. It is limited not to exceed the bandwidth of a “typical” SSB transmission.

Typical is in quotes because some people think it is cool to allow their radios to transmit up to 10KHz bandwidth because “high fidelity SSB” is apparently a thing.
Do You Know Where Lisp Is Used Nowadays?
here as gift article https://www.nytimes.com/2021/10/28/nyregion/nyc-wildlife-hab...
As a guy (as weird as it may sound) I've been followed and jumped on by a drugged up homeless making sexual advances in an isolated street next to Gare du Nord. There was a small altercation and I ran away.

In the same trip I've experienced several instances of homeless or just economic immigrants from Africa grabbing your arm trying to steal / sell you something.

There is also plenty of homeless peeing and pooping pretty much everywhere in Paris, which is disgusting enough.

I found London to be much better compared to Paris, even if things got way worse in the last few years. 5-10 years ago it was a rare occurrence to see homeless people, now you see homeless people sleeping everywhere and shooting drugs on the street like it's nothing.

I've since moved in the middle of nowhere and I'm definitely not going to raise my kids in a city.
Did you talk to someone at Cloudflare about this? That sounds... odd.
Don’t buy reviews. But you could recruit a panel of early users to give you feedback. You take their feedback honestly and seriously. (Do this anyway, for your product, not for the sake of reviews.)

Whenever the panel wraps up, you point out they could (only if they want to) leave a review for the app if they would like to.

You won’t be guaranteed positive reviews, but if they’re enthusiastic users and if you’ve been honest and forthright with them, they’ll at least leave thoughtful reviews.
I just wanted to say that your process sounds incredibly awesome. I was curious, what type of instance do you have running behind your Cloud Run job?

I know rendering can be quite heavy on a CPU, but it sounds like you're running a series of commands to generate a model instead
CloudFlare is in the right. This is for privacy.

Just put the IPs on your hosts file, it's easy. https://dns.google/query?name=archive.is

54.37.18.234 archive.today
54.37.18.234 archive.is

While there try a hosts blocklist

http://someonewhocares.org/hosts/

https://github.com/jmdugan/blocklists/tree/master/corporatio...

etc
> Wow, that's not how I parsed the very same reposting rules.

Some posts get reposted a lot see this website for example https://news.ycombinator.com/from?site=lihaoyi.com some were posted 7 times.

This thing is that almost any well written (and not too much technical) post can reach the frontpage it only requires 3-4 people who like the post enough to upvote it during the first 30 minutes. As a result reposting works for those kind of content. And as it is not forbidden, people do it
I wonder why this is. I only speak english so don't have other languages to compare it to. But we use a lot of idioms too, is that also less common in other languages? Could it be because of the wide range of cultures that speak English as their first and only language?

I know there are other languages as or more widely natively spoken (Spanish and Mandarin come to mind) but isn't it common for native speakers of those languages to also natively speak local languages and/or dialects. Could the number of "friendly noises" and idioms in English be because most english speakers only speak english?

In your specific case (ie coming to the UK) you've also the interesting thing where lots of americanisms have been adopted here, while still Britishisms remain. Different regions of Britain also strongly maintain a lot of their own "isms" (Scottish-isms for example) and we still tend to use them with other brits out of local pride. So depending where you are in the UK (London would be the extreme example) you'd likely hear Americanisms and Britishisms on a daily basis plus various region specific isms if you were often around people from those areas.
"stay away from ephemeral messaging for work purposes" is the part I found interesting.

First, does Workplace chat (including video chat) count as ephemeral messaging? Or IRC? Because those are how most work gets done there. Remember that big outage a few weeks ago? One of the reasons it took so long to fix is that normal lines of communication were cut. If this edict were rigorously followed, this would cripple operations (especially involving remote workers which I suspect is the real point).

Second, speech is a form of ephemeral messaging but I doubt they mean to discourage that. In fact, normal practice at companies worried about legal action is to encourage non-recorded communication. If they discourage one form of communication because it doesn't leave a record, but say nothing either way about another form of communication that also doesn't leave a record, they've achieved nothing at all.
Does anyone else find this article written and headlined very awkwardly?
Thank you for understanding the essence! :D
>The fact that this assumes that the only suitable mate is one of the same career status is part of what drivers income inequality.

Absolutely. The proliferation of two-income families is a huge and well-documented driver of inequality. But the fact is that human woman tend not to marry below themselves in terms of some combination of status markers that they judge as important. And human men who don't feel like their contributions are important to the family (primary earner, mostly) tend to make their relationships less stable.
The actual answer given at that link uses dice with a finite number of sides. In fact they all have an even number of sides, so you could make them physically with bipyramids or trapezohedra.

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

https://en.wikipedia.org/wiki/Trapezohedron
You know, perhaps this is tangential to the point that you're making at best, but i still couldn't help but to notice:

> The three parts take roughly the same portion of time, and when I'm writing tests

that bit and have some strong feelings about it. At my current dayjob, writing tests (if it was even done for all code) would easily take anywhere between 50% and 75% of the total development time.

I wish things were easy enough for writing test code not to be a total slog, but sadly there are too many factors in place:

- what should the test class be annotated with and which bits of the Spring context (Java) will get started with it
- i can't test the DB because the tests don't have a local one with 100% automated migrations, nor an in memory one because of the need to use Oracle, so i need to prevent it from ever being called
- that said, the logic that i need to test involves at least 5 to 10 different service calls, which them use another 5 to 20 DB mappers (myBatis) and possibly dozens of different DB calls
- and when i finally figure out what i want to test, the logic for mocking will definitely fail the first time due to Mockito idiosyncrasies
- after that's been resolved, i'll probably need to stub out a whole bunch of fake DB calls, that will return deeply nested data structures
- of course, i still need all of this to make sense, since the DB is full of EAV and OTLT patterns (https://tonyandrews.blogspot.com/2004/10/otlt-and-eav-two-big-design-mistakes.html) as opposed to proper foreign keys (instead you end up with something like target_table and target_table_row_id, except named way worse and not containing a table name but some enum that's stored in the app, so you can't just figure out how everything works without looking through both)
- and once i've finally mocked all of the service calls, DB calls and data initialization, there's also validation logic that does its own service calls which may or may not be the same, thus doubling the work
- of course, the validators are initialized based on reflection and target types, such as EntityValidator being injected, however actually being one of ~100 supported subclasses, which may or may not be the ones you expect due to years of cruft, you can't just do ctrl+click to open the definition, since that opens the superclass not the subclass
- and once all of that works, you have to hope that 95% of the test code that vaguely correseponds to what the application would actually be doing won't fail at any number of points, just so you can do one assertion

I'm not quite sure how things can get that bad or how people can architect systems to be coupled like that in the first place, but at the conclusion of my quasi-rant i'd like to suggest that many of the systems out there definitely aren't easily testable or testable at all.

That said, it's nice that at least your workflow works out like that!
The standard is also the lowest common denominator. I think it's a useful skill to be able to write POSIX-only shell scripts, but in my day to day use I'd rather have the GNU extensions, knowing that they aren't portable. Plus the GNU versions of the programs generally are still portable anyway.
> We’ve had the HTML <video> element for over a decade. Yet, everyone still defaults to embedding YouTube frames instead of hosting their own videos. The underlying problem is that the <video> element isn’t suitable for embedding short video files on webpages.

The reason small websites prefer YouTube embeds is because they want to avoid bearing the storage and bandwidth costs of serving it. And the logistical costs of transcoding it to N different resolutions times M different codecs. No amount of improvements to HTML alone will change that. (Not that the changes are entirely worthless, but they still do not and cannot address the real issue.)
You're right. I'm so annoyed by firefox changing its interface every once in a while instead of coming up with a good one that they can actually keep stable for years...
Random thought upon reading the linked announcement:

If you stacked multiple Pi boards on top of each other, connected through the GPIO HAT connector, could you network them?

Apologies, just woke up and coffee not kicked in. This is probably silly :)

EDIT: yes, I should search for this sort of thing before posting: https://forums.raspberrypi.com/viewtopic.php?t=127660

tl;dr "serial port, RS485 + SLIP of some sort, probably would max out at around 1Mbps, 4Mbps theoretically possible with small MTU's" and "There is no hardware reason why an RS485 network could not be used as the physical layer for at least 32 nodes, and with some of the RS485 driver chips, 127 nodes (they have stronger drivers)"
At what TDP though? The Max powers the CPU, GPU, Neural Engine and RAM a TDP of less than 60w
Exactly. Thank you. Who is really doing the "choosing" here.
> he is the best moderator in the world

Yes he is. Dang, you are amazing. Thank you for tending this beautiful garden in the middle of a sad and boggy Internet.
It does seem to work as a hangover preventative provided you take it before starting to drink alcohol. (Somewhere between 15 minutes to a few hours before.)
I agree with you there. My comment was aimed at the subtext of the whole conversation regarding bullfighting. If i recall correctly that dialog is not in the books and the only reason to bring it up in the movie is to foreshadow the plot.
No SSRI's are antihistaminergic. It is right in the name. SSRI only inhibit serotonin reuptake. Many antipsychotics have histamine receptor inhibition, but there are no antidepressants that block the histamine receptors.
It's quite impressive they managed to pull that off with a clearly inferior process node (which is still noticeable with the power draw, likely)

Still, if ever they manage to at least be competitive on the process node front, that might make things interesting...

As is, while technically impressive they even managed this, it's not like the difference is large enough to be impactful.
Glad to see this finally getting attention. This is not what teenagers have in mind when they ask for "help".
Yeah, this is pretty much meaningless without taking power into account.
Do you have an insight on the timeline for stabilizing the metrics and logging specs?
I think you have a misunderstanding here. You are right that downwash accounts for a tiny proportion of the overall lift, in fact it only become significant close to the wing tips.

Downwash (in the context of lift generating wings) refers to the downwards motions of air generated by tip vortices (look-up "induced drag" for more details). This is not the same as the net downwards motion of the air in the wake, relative to the free-stream air. Take for example, an infinite wing (or a 2D wing). Here, there is no downwash but we still generate lift and have a net downwards motion of the air in the wake. You can see this with online fluid simulators for airfoil sections, many of them are 2D.
Hiring (2018)
I think the 'nonlinearity' they are referring to is the difference between expected value and probability. It's possible that A beats B most of the time, and yet the average amount by which A beats B is negative, because when A does lose it loses big.
What baffles me is the rather bad availability of older versions.

I'd have guessed that there's somewhere a warehouse full of Pi Zero Ws, but I can't buy one right now in Germany. There's a shop in Switzerland, but I'd have to pay import taxes and whatnot to get hold of that.

So, let's try a Model 3 B+ then... Same as before: Official vendors are almost all sold out, one has some but it's 15 to 20 Euro above the recommended price...

Something's broken in the reselling system if you ask me.
I remember those articles, about European rivers being so low that it was possible to see inscriptions from 1300, 1400.

Which, of course, means that centuries ago those rivers were low too, in a period that climate change wasn't a thing and the Amazon forest wasn't even known.
Terraforming: Why the Moon is a better target than Mars
For completeness sake I would only add that a nation-state actor or an organized crime org with access to an unethical CA can generate certs for any site and perform the MITM. CA's sometimes get caught operating this way. One method to mitigate this is to periodically check the fingerprint of the cert for the site you are talking to.

Here is one way using openssl:

for i in $(echo -e "news.ycombinator.com ycombinator.com www.ycombinator.com"); do echo -en "${i}: "; openssl s_client -servername "${i}" -connect "${i}":443 < /dev/null 2>/dev/null | openssl x509 -fingerprint -noout -in /dev/stdin; done|sort -k2 -t"=" | awk '{print $NF "\t" $1}' | column -t

Fingerprint=22:05:8D:96:A0:F7:9B:8F:B8:1D:0F:74:EC:4B:76:8F:84:B0:42:49 www.ycombinator.com:
Fingerprint=5D:70:F0:DC:E0:AF:67:A0:8F:BC:2F:B8:49:F0:79:5D:8B:FF:49:93 news.ycombinator.com:
Fingerprint=C4:A6:FF:38:83:13:31:DC:14:01:3D:05:E8:3B:29:95:FD:AE:9B:0E ycombinator.com:

One could diff the output in a script then send an alert if there is a diff from one test to the other. If doing this factor in expiration and test from multiple locations. Meaning you can expect the cert to change some time before it expires, hopefully.

openssl s_client -servername news.ycombinator.com -connect news.ycombinator.com:443 < /dev/null 2>/dev/null | openssl x509 -noout -dates

notBefore=Sep 7 00:00:00 2021 GMT
notAfter=Oct 8 23:59:59 2022 GMT

Another mitigating control is public key pinning but very few organizations do this any more. It is just too risky operationally. Another method is to limit what CA's you trust but this is not practical for most organizations. e.g. You have a specific purpose system that only talks to Specified_Bank and that Specified_Bank only uses Specified_CA, you can strip out all other CA's from your trust store and/or manually pin their public key in your system accepting the risk connections will break when they update their cert without coordinating with you.
Given the lack of unified memory and the inferior process node, the expectation is that this would be much less power efficient (and the article points this out too).
How would this work? For example there was an update in libXYZ and the office suite, browser, audio player and some system services need to be restarted to use the new version. Obviously the system can't just quit those applications, after all they are in use and there might be unsaved data. So should the users get a popup for every app that needs to be restarted? And what about the system services? E.g. when the display session needs to be restarted, all open applications would be lost as well, or restarting the audio server might mess with an ongoing audio recording.

Wouldn't it be so much more reliable, faster and simpler to just install those updates on the next restart?
Don't count on it...

https://www.1800petmeds.com/Fluoxetine-prod10489.html
The term "gaslighting" has become overwrought to the point where it's hard not to immediately dismiss anyone using it.

It is not a "pivot" for someone to say, "X isn't necessary", and then say, "X still isn't necessary but at least it's implementation doesn't break things".
From a practical sense though, wouldn’t the staffing costs pale in significance to the other costs of running a large vessel?
Seems I'm geo-blocked. My Location is Turkey.
When I met them (years ago), they seemed to be more focused on open waters. In particular, I believe they were providing monitoring vessels in the Mediterranean during the refugee crisis.
Like ramlog for systemd (Useful for RaspberryPi)
I agree it's fragile and dreamlike - but it is in my opinion genuine understanding. If you have or ever do have children you can observe them pass through a similar kind of stage, fractured incomplete understanding, dreamlike, yet still understanding. It crystallises slowly overtime. I predict the same will happen as we expand the models and add more complexity.
I'm having trouble understanding the premise here.

> Why is there only one crane for every 50–100 trucks at every port in America? No ‘expert’ will answer this question.

Cranes should be THE bottleneck. They are massive, expensive and land intensive. Maybe LA needs more cranes, but it doesn't sound like that is the issue. The author states the problem is a trucker problem, "lines to get in, lines to get out" but that isn't a crane problem.

The author gets paid by the hour, others get paid by the job, job duration is variable and undefined, so wages are undefined. One solution is to pay drivers more, and pay them per hour. I've had containers full of goods waiting somewhere around the port of LA in the last year. If there were way to pay more to move them on through the system, I'd gladly pay, but its a giant black box.

My conjecture is that the REAL real issue is a very complicated and embedded union vs non-union vs contractor vs fed government vs state govt vs local govt pissing contest that could all be circumvented by federal government investing in alternative ports around the US border. Port of Louisiana, Port of Houston, Ports of Florida in the gulf. Lots of alternatives, and we are all sitting around like Port of LA is the sole option. Separately, I dont understand why Mexico isn't more prominent in container transport moved via trains into Texas.
`echo 0 > /sys/devices/system/cpu/cpu[0-n]/online` should do what you want.