skysight-inc/HackerNews huggingface dataset:
Here are the question IDs from the 2019-2023 general and 2020-2024 extra pools.

Vacuum tube amplifier tuning: E7B09, https://hamstudy.org/browse/E4_2016/E7B

Analog slow scan television signal components: E2B10, https://hamstudy.org/browse/E4_2020/E2B

Morse code shorthands: G2C02, https://hamstudy.org/browse/E3_2015/G2C
> If they did something that got in the way of building the software I need to build? Then I'd punch out in a heartbeat.

Sadly I don't do it for a living, but the stuff I like to write is all tuned for performance, they don't tell me anything about the CPU, so even if I was in the market for one I still wouldn't buy one as I couldn't have any fun using it.

And Computers stopped being mere tools years ago - the phone has now supplanted the laptop and desktop in this regard, but it remains true that many people are in terms of knowledge and purchasing power completely at the whim of (in this case) Apple to go about their lives.
Pic of BE-4 engines: https://twitter.com/julia_bergeron/status/136060893745692263...

Peak inside the building where they are building things: https://twitter.com/julia_bergeron/status/136030816885784576...
You have a point here: I have made that^^ the new default sort order now.
They often change the titles of their videos, sometimes multiple times. Not sure if that counts as "A/B testing" though.
I know - you would think that with sixty-five whole years since the first satellite launch we'd be able to meaningfully explore our solar system already. It only took a few thousand years to fully map and explore the Earth's surface and you'd think exploring multiple planets and billions of miles of space would be 100x faster than that.

That money could be much better spent, like on tanks we will never use.
Nice catch! The typo is now fixed. And I have added 'Show HN' prefix.

The README is a little bit verbose but I hope it's not too boring. :)
Do we need to?
MSG?
I know Git quite well at this point in my career, but it’s still a very baffling and often frustrating SCM tool in my opinion. I find it disconcerting that despite many years with it, I still feel like I don’t totally comprehend what really is happening under the hood. There seems to be a lot of magic. I still have a sense of apprehension every time I do a rebase, and after successful conflict resolution I am surprised that it somehow worked given how messy and convoluted the rebase workflow is.

One of the oddest things I more recently learned about Git is that you can’t create empty folders. The workaround is to create an empty file (e.g., a README)!

That being said, entire careers are built on this powerful yet odd tool that has somehow become the most popular SCM system in the world.
In this version Belloq's head explodes at the end...I thought that footage was lost to time!? It's strange to see it in such pristine quality.
You seem extremely confused if you genuinely think buried trash in landfill does no harm. Please go and educate your self on the consequences of PLASTIC landfills.
Boeing Lost Its Bearings (2019)
This was a bioethics "prank." Not like April Fools, but more with the intention to get people to react to the idea. That's why there aren't actually any products, even though the copytext keeps talking in the present as if they have already been doing this.

The first entry in the following article briefly talks about it. Back then, this was pretty big "news."

https://blog.cirm.ca.gov/tag/bitelabs/
Having created literal mayhem in an unstable orbit of uncounted masses, ie for a giant externality. Next flight up, don't be within a large amount of space nearby in orbital terms, without care. (Maybe. Im not a kerbal person or an astronomer or flight engineer. This is a precautionary question to risk and to whom it applies)
Yeah, I'm happy to see more experimentation in the lightweight compiler space! My one-pass pipeline does forward greedy regalloc integrated with the approach I outlined in my post.

The next sweet spot seems to be a two-pass pipeline so you get a full forward and backward dataflow pass: your forward pass does SSA generation integrated with the forward dataflow analyses and the backward pass does machine code generation integrated with backward regalloc and dead code elimination. SSA with backward codegen/regalloc gives you an optimal coloring since the backward order for structured code matches the reverse postorder of the corresponding reducible CFG, and the greedy backward approach gives you decent splitting/coalescing for free. This is basically LuaJIT's approach but it can be extended beyond traces to reducible control flow if you replace the linear trace ordering with the dominator tree ordering. With two passes you should also be able to do something like Cliff Click's style of global code motion (as used in the HotSpot server compiler) with the early-schedule/late-schedule steps integrated into the two passes.

The main limitation of a pure two-pass approach is that you can't do precise SSA generation for loops at the same time you're doing your forward dataflow pass, so you have to be conservative. That blocks most LICM opportunities, so an extra micro-pass per loop is easy to justify, either an SSA pre-pass per loop or something like LuaJIT's loop peeling where you fully peel off the first iteration while identifying loop invariant variables before processing the loop a second time. Then LICM happens automatically via CSE since the peeled iteration dominates the loop body.
There is a famous book, to give you an idea of the sophistication, the "US Navy Handbook of Preferred Circuits":

https://usermanual.wiki/Collections/Help-Docs/books/www.rsp-...

There is a vacuum tube circuit called a "Phantastron"- a triggered voltage to time converter, you could do this with a 555 timer today... (or um, in 1972..).

https://www.radartutorial.eu/17.bauteile/bt52.en.html

Here, in a three tube oscilloscope:

http://www.hanssummers.com/tinyscope/tinyscopek3imw.html
No offense towards the average bear, but I would probably have dictated a statement the same way.

I’m not an average bear though. I regularly read and refer to things learned from airlines and other high criticality career fields, and talk about them at conferences. My sister is an airline pilot and I might have been if I wasn’t medically disqualified.

I do participate in government emergency response work and that looks like the type of statement that would come from a trained observer who knows how to express directionality as unambiguously as possible.
The problem is that you can't really push a black hole. As long as there is a faint gravitational pull, it will keep coming closer to the mass, until it's able to touch and consume it.

The only hope that it would evaporate sooner.
RocketLab is getting pretty close. It’s a different size class, but they seem to be getting close.

https://twitter.com/RocketLab/status/1362116590863409152?s=2...
No doubt this was a happy ending, but modern airplanes like the 777 are perfectly capable of flying, even climbing with one engine. So, while it seems very heroic on the part of the pilot, it is pretty ordinary and non news.

What I do think is a happy outcome is the debris from the disintegrating engine did not fall on someone and kill/injure them.

Source: Pilot.
Previously https://news.ycombinator.com/item?id=26188649
Exactly. The essay is quite specific about why the reasoning is bad. Sandifer's breakdown makes clear why I think Siskind's work is often in the category of "not even wrong". [1] To be wrong, one has to be clear, specific, and coherent. And I said, I don't think it's an accident that Siskind is murky. It serves his political purpose.

[1] https://en.wikipedia.org/wiki/Not_even_wrong
You say that 40% of the gas plants failed. I'm sure you're also aware that wind was only able to produce 15-25% of its capacity, and it was at the lower end of that range during the cold nights when temperatures were below 0°F. Your framing in the GGP makes it sound like everything can be blamed on gas plants, and completely ignores wind output collapsing to 15% of capacity. As a world leader in wind capacity, we can't just ignore our abysmal wind generation situation by pointing fingers at other energy sources which performed much better relative to their share of capacity.
This could have gotten so bad so fast. Well trained pilots, arc, decent protocols and some luck saved 231 lives here!
you're misrepresenting the point, the point people make is that apple curating apps on the app store is a good thing for user privacy and minimizing spyware, and that allowing sideloading or third-party app stores would immediately negate that as some of the biggest, most intrusive, and most socially-inescapeable apps (like facebook) would immediately demand they be sideloaded in order to escape the apple rules on permissions/user surveillance/etc.

nobody thinks apple is doing it because they're their friend. And they know apple is making money off it. Some people prefer having apps with limited, audited permissions over a more wild-west approach where you could install anything and apps could demand anything or prevent you from using the app.

(and if you don't that's fine, Android exists and no apple users mind that. Market choices are good, stop trying to shut down Apple's ability to provide a different experience.)

if you really really want to sideload an app on an apple phone, pay the $50 a year for a developer account and you can compile and sideload whatever you want. Same for xbox btw, you can run any UWP app on an Xbox if you have a developer account.
Thanks for that!
I just found this especially awesome shot of Curiosity: https://mars.nasa.gov/resources/21929/curiositys-dusty-selfi...

It's very high res. You can see the holes/damage on the wheels -- Perseverance will have new wheels because of it. And also, won't have the 'morse code spelling' on the wheels either. It's amazing that this kind of damage/wear couldn't have been predicted in tests.
The amount of dust that has settled on top in what appears to be predictable channels is also interesting.

Looks like they have more than 300 000 images on the raw site:
https://mars.nasa.gov/msl/multimedia/raw-images/?order=sol+d...
Curious what's in the Clubhouse app?
I suppose for that its Schwartzschield radius should be much smaller than a typical atom?
TypeError: unsupported operand type(s) for +: 'NoneType' and 'int'
The drug laws in this country are mostly a vestige of racist policies.

For example, opium wasn't illegal until people started fearmongering about race mixing in opium dens with Chinese immigrants.
Doesn't any question that starts with "why did you choose to do X" expect an answer that starts with "Because I wanted..."?

It is the part that comes after that matters. "Because I wanted someone else to experience the joy I experience every day" is a very different answer than "Because I needed someone to make me feel like I'm important."
So... web browsers?

I think it's important to distinguish between applications and protocols.

Successful applications based on decentralized networks seem to be a mix of both application code and protocol. So in discussing email, we are probably discussing SMTP and IMAP, and then the applications are the email clients that speak those protocols. Similarly, when we talk about the web we are talking about TCP/IP and HTTP(S), (also DNS, CGI, etc) and the browsers are again the clients that speak those protocols.

It seems to me that the success of the world wide web has entirely to do with TBL making sure that his superiors released his work into the public domain[1].

Whereas with something like World of Warcraft, there you have an extremely successful application, but it's based on a proprietary protocol, proprietary code, and centralized networks. Could it have been more successful if Blizzard had released the protocol and client into the public domain?

[1]http://cds.cern.ch/record/1164399
Modern software controls dependencies because it helps software authors
Mealprime Test
Current biodegradable plastics are an industry smokescreen. The biodegradable portion is generally plant starch used as a binder. The “plastic” is just that, a very stable long lived micro/nano plastic. The big chunks break down, and the plastics continue to move through the environment and bioaccumulate.

The work towards truly biodegrade plastic is generally from the other end; identifying or making organisms that can break down the polymers themselves. Those don’t seem to be commercially viable, and in themselves won’t address environmental plastic pollution.
Don’t forget China Academy of Launch Vehicle Technology and China Aerospace Science and Technology Corporation

https://spacelaunchnow.me/launch/long-march-5-change-5
There's a lot more to ULA than just assembling old-space rockets. There are people there with the experience in designing, testing and launching rockets and all the equipment required to support them. There's also the real estate already zoned for rocket manufacturing.

Massive win for BO if this comes to pass.
This is an extremely ignorant position to take. For starters amateur licenses have mode and modulation restrictions in certain bands and power output limitations in all of them. Secondly despite far higher power privileges than unlicensed users amateurs have to keep their power output appropriate for their use. They can't just crank the output up to 11. Third, amateurs are prohibited from commercial communications and broadcasting on amateur bands.

Everyone with some sort of radio license from commercial broadcasters to amateurs have some sort of legal limits on their operation. Radio is a shared medium and being an asshole can ruin the medium for other uses over a huge area.

When it comes to encryption, good encryption is little different from noise. I also have no idea what you're doing on the band. Do you just have a mistuned radio? Are you overdriving your transmitter? What I do know is you're raising the noise floor on whatever band you're on and keeping me from using it.

Your WiFi being encrypted is a much different situation. Best case propagation is hundreds of feet and the PEP is so low that beyond a relatively short distance your transmissions literally blend into background noise for me. So your WiFi doesn't affect me too badly unless we're in adjacent apartments and you've got your output power maxed out.

Your encrypted transmissions on the rarified space available for hams ruins it for a lot of users over a wide area. That is why hams are fine with no encryption for amateur operation.
how (if) important is using as minimal resources on the user's system? (if) Everyone agrees electron is bloated, is it (still) fair to prioritize developer "comfort zone" over actual specs?
The little inspiration it brings is always overthrown by the negatives of the now outside of the whole space venture. There is no national pride to have when say one government decides to screw the country one lives causing restrictions in freedom.

Space will be a great thing, but when those in control of it, also control the damage of the current planet kind of makes moot of the whole two elements.

You could say the whole space venture is for the future, our kids, kids but how is there to be a future if we destroy the now?

I hate being stuck in the rut I am in, 31 and highly cynical. But from what I've experienced and seeing the decaying future gives less hope every day. I try hard to keep an optimistic type of view but it's bare threaded. Knowing that I've picked up four bin-bags daily of trash gives me hope that someday we can all be doing the same and that I've saved the planet a tiny bit.

I too also hope I can create awareness that turn a few heads with a few ideas but then with that you still run the extreme risk of being taken down for trying to promote a good deed.
We will meet on the battlefield in the looming civil war, then.
As much as I hate to admit it, this is a solid argument.

I like that I can go to a cannabis dispensary if I want to (even though it’s not my thing). But I remember the outrage I felt learning about federal agents destroying a place some years back. They didn’t just arrest people; they deliberately trashed everything they could.

That said, you gotta start somewhere. People have to take risks to effect change and progress. The civil rights movement wouldn’t have led to change if people weren’t willing to put themselves at risk of being arrested.
Let’s talk about the US then. Do you agree we’re not running out of land? If so, what is the point of recycling?
It is technically possible to travel beyond our solar system with current technology. https://en.wikipedia.org/wiki/Project_Orion_(nuclear_propuls...
What do you think about intelligent design sort arguments? It is hard to understand how random variation and natural selection can produce the equivalent of a biological operating system. I have also a fair amount of experience with evolutionary algorithms, and they add to my perplexity as to how random variation and natural selection are sufficient mechanisms to produce the genome, let alone how the whole system would get started in the first place. This does seem to be a pretty good piece of scientific evidence for the intrusion of something entirely unlike any physical process we know of, and capable of feats only analogous to what human intelligence can produce. This seems to me a quite persuasive scientific argument for something deity-ish.
https://preppcomm.com/

Company local to me makes these. I haven't tried one but it looks interesting.

I did some rework on a couple of their prototype boards.

edit: TLDR; it is a morse code transceiver
737 MAX has entered the chat
Flying on one engine is one thing. Flying one engine while the other is on fire due to unknown causes is another. Still newsworthy in my book.

Source: also a pilot
> I’m looking for that 1% of the posts that interest me, and when I find them it’s fantastic, since it’s info I would not be able to find anywhere else. But going through the other 99% is a waste of time.

Would this really help with HN addiction? I imagine it might exacerbate it since everything you see is so much more engaging (by definition), and probably count(posts that interest you) >>> count(posts that you've read).
28-year-old turned his college side hustle into a $1.3B startup
O, that is a good idea. But, I found this too late, so now I cannot change my original message. (I did intend to do so actually, but I had forgotten.) But, I will mention here:

Free Hero Mesh is a puzzle game engine, for grid-based turn-based puzzle games (with rectangular grids up to 64x64; there are no hex grids). There is no randomness; the solution is a sequence of moves that results in the winning state.

Additionally, it is intended to be compatible with Hero Hearts, Hero Defiant, Falling Hero, and other puzzle sets using Everett Kaser's Hero Mesh software; however, there are many improvements in Free Hero Mesh (including compression and many other things). Some things do not work due to race conditions in the original puzzle sets; if they are corrected, most puzzles will work.

Free Hero Mesh is more than just a reimplementation of Hero Hearts, though; I also added some new features, and there are many more I intend to add, too.
> 1. What is the best way to communicate issues to the pilot if you're a passenger and see something the pilot can't see?

Flight attendants is the passengers' interface to the whole flight environment. BTW there's seniority rank among the attendants too, chain of command, so to speak.

I would think that your observation was likely being noted, not sure if relayed to the pilots. Juice is the best option, noone needs to have a panic in the cabin.

Did you try to mention that observation again but at the arrival, during the "Thank you, good bye!" time? Sometimes you may even see the captain there.

P.S. Once, my flight was cancelled (all boarded already) because the crew discovered a missing "Exit" sign in the cabin and the mechanics at the airport could not find the exact part for the plane model. Call this an attention to details!
I find it reassuring that the advice resonates with economic theory. "Comparative advantage" isn't the most accessible way of putting it, so it's good to have others that are easier to understand
The SRI at Stanford claims psi is very prevalent in the human population, but operates at low levels that require a large number of sensitive experiments to detect. Not saying they are right, but that could explain why these people were persuaded of paranormal activity, but it never popped out at you as a really obvious capability.
The onerously high taxes could help pay for the incentives, prizes, and grants.
> I think psychedelics will ruin the minds of many teenagers. They should never be legalized. Anyone who has spent time around people who used them in their youth knows this, we don’t understand how they affect brains

Funny how I took huge amounts of LSD and mushrooms as a youth and then made a successful living as a productive member of society. People are surprised to learn that aspect of my past because when it comes up. If anything, my world view and appreciation for differing viewpoints is broader because of it.
This has been almost my exact same discovery path but I'm a few paces behind you. I would also highly recommend Carl Hart's "Drug Use for Grownups".
White board and pen

Pen and paper

Google sheets / docs, so my partner and I can share things

Sometimes I email myself thigns

Voice assistant scheduling "Hey google, reminder tomorrow at 3pm to take out the garbage" or such like.

That's it. Anything more complicated creates more friction than value.
lots more context switching which is a big thing on a new architecture.

It goes from "it boots as a toy" to "actually useful"
I don't mean to be dismissive, but isn't almost anything a decent home server nowadays? As long as your'e OK with the performance, size, cost, storage, there are just myriad options available. Just about any PC or mac would do. Finally, we all have our own preferences, but I'm not sure why one would really want to use OpenBSD for a home server. There's less driver support or application support than just about any other choice. It sounds like an ideal choice if you like to spend countless hours fiddling with things.

I'm really curious what you see to like in this setup.
The main advantage of an app is guided meditation. If you only want to sit quietly, or you're already trained in meditation, or you've read some books on practice, then the apps may not provide an advantage to you.
I would think that NNTP is good. (It would also be possible to provide a web interface in addition to the NNTP; there are a few such programs.)
I've never worked at a company which took titles seriously, let alone fractional title levels; what on earth do those mean?
good point, I was trying to stick to private companies but if I included Khrunichev, I should probably include them too.
"So it had to download ~3gb to update the OS, just to wipe itself."

Similarly, if one wants to replace Windows 10S with Linux, have to either have or create a Microsoft account and then have to upgrade to Windows Home via a large download ...