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Practical SDR: Getting Started with Software-Defined Radio

https://nostarch.com/practical-sdr
47•teleforce•1h ago•5 comments

Player Piano Rolls

https://omeka-s.library.illinois.edu/s/MPAL/page/player-piano-rolls-landing
9•brudgers•33m ago•1 comments

WeatherStar 4000+: Weather Channel Simulator

https://weatherstar.netbymatt.com/
537•adam_gyroscope•11h ago•96 comments

FLUX.1 Kontext

https://bfl.ai/models/flux-kontext
287•minimaxir•9h ago•85 comments

A scientist who disarmed an atomic bomb twice

https://daxe.substack.com/p/disarming-an-atomic-bomb-is-the-worst
42•vinnyglennon•2d ago•30 comments

U.S. Sanctions Cloud Provider 'Funnull' as Top Source of 'Pig Butchering' Scams

https://krebsonsecurity.com/2025/05/u-s-sanctions-cloud-provider-funnull-as-top-source-of-pig-butchering-scams/
38•todsacerdoti•1h ago•17 comments

Show HN: I wrote a modern Command Line Handbook

https://commandline.stribny.name/
269•petr25102018•12h ago•72 comments

Making C and Python Talk to Each Other

https://leetarxiv.substack.com/p/making-c-and-python-talk-to-each
85•muragekibicho•2d ago•56 comments

My website is ugly because I made it

https://goodinternetmagazine.com/my-website-is-ugly-because-i-made-it/
445•surprisetalk•1d ago•120 comments

Learning C3

https://alloc.dev/2025/05/29/learning_c3
214•lerno•13h ago•128 comments

Car Physics for Games (2003)

https://www.asawicki.info/Mirror/Car%20Physics%20for%20Games/Car%20Physics%20for%20Games.html
21•ibobev•2d ago•5 comments

Gurus of 90s Web Design: Zeldman, Siegel, Nielsen

https://cybercultural.com/p/web-design-1997/
372•panic•19h ago•168 comments

Human coders are still better than LLMs

https://antirez.com/news/153
393•longwave•10h ago•481 comments

A visual exploration of vector embeddings

http://blog.pamelafox.org/2025/05/a-visual-exploration-of-vector.html
131•pamelafox•1d ago•29 comments

How did geometry create modern physics?

https://www.quantamagazine.org/how-did-geometry-create-modern-physics-20250515/
5•surprisetalk•3d ago•0 comments

Flash Back: An "oral" history of Flash

https://goodinternetmagazine.com/oral-history-of-flash/
20•surprisetalk•1d ago•18 comments

Notes on Tunisia

https://mattlakeman.org/2025/05/29/notes-on-tunisia/
26•returningfory2•6h ago•12 comments

Putting Rigid Bodies to Rest

https://twitter.com/keenanisalive/status/1925225500659658999
110•pvg•11h ago•10 comments

Open-sourcing circuit tracing tools

https://www.anthropic.com/research/open-source-circuit-tracing
106•jlaneve•10h ago•19 comments

The flip phone web: browsing with the original Opera Mini

https://www.spacebar.news/the-flip-phone-web-browsing-with-the-original-opera-mini/
99•protonbob•12h ago•60 comments

I'm starting a social club to solve the male loneliness epidemic

https://wave3.social
58•nswizzle31•3h ago•64 comments

Why Is Everybody Knitting Chickens?

https://ironicsans.ghost.io/why-is-everybody-knitting-chickens/
100•mooreds•2d ago•80 comments

Grid-Free Approach to Partial Differential Equations on Volumetric Domains [pdf]

http://rohansawhney.io/RohanSawhneyPhDThesis.pdf
32•luu•2d ago•3 comments

Nova: A JavaScript and WebAssembly engine written in Rust

https://trynova.dev/
149•AbuAssar•13h ago•42 comments

Editing repeats in Huntington's:fewer somatic repeat expansions in patient cells

https://www.nature.com/articles/s41588-025-02172-8
19•bookofjoe•2d ago•2 comments

Infisical (YC W23) Is Hiring Full Stack Engineers (TypeScript) in US and Canada

https://www.ycombinator.com/companies/infisical/jobs/vGwCQVk-full-stack-engineer-us-canada
1•dangtony98•10h ago

Net-Negative Cursor

https://lukasatkinson.de/2025/net-negative-cursor/
31•todsacerdoti•6h ago•17 comments

Show HN: Typed-FFmpeg 3.0–Typed Interface to FFmpeg and Visual Filter Editor

https://github.com/livingbio/typed-ffmpeg
318•lucemia51•23h ago•33 comments

I started a little math club in Bangalore

https://teachyourselfmath.app/club
101•viveknathani_•14h ago•19 comments

Airlines are charging solo passengers higher fares than groups

https://thriftytraveler.com/news/airlines/airlines-charging-solo-travelers-higher-fares/
254•_tqr3•8h ago•391 comments
Open in hackernews

The mysterious Gobi wall uncovered

https://phys.org/news/2025-05-secrets-mysterious-gobi-wall-uncovered.html
68•bikenaga•1d ago

Comments

burnte•1d ago
> Until now, its origins, function, and historical context remained largely unknown.

I'm pretty sure we know its function, though. Walls have one function, to be a barrier.

ceejayoz•1d ago
https://en.wikipedia.org/wiki/Vietnam_Veterans_Memorial is a wall, but not really intended to be a barrier.
pixl97•1d ago
One would hope it would be a barrier to future war, but humans seem to love crossing that one.
notherhack•1d ago
"The Gobi Wall was not just a barrier—it was a dynamic mechanism for governing movement, trade, and territorial control in a challenging environment."
card_zero•1d ago
Dynamic, like it moved around?

Or it had moving parts maybe, this mechanism? Oh, I guess they're thinking of soldiers. Part of the wall in a way.

BurningFrog•1d ago
I think they mean the wall gates could be opened and closed to control where people could travel.
beloch•1d ago
Barriers can have different purposes though. e.g. One wall might be built because the people on one side want nothing to do with the other. Another might be built because the people on both sides are in a close economic relationship, but somebody else entirely wants to funnel that through choke points where intercourse can be taxed, monitored for information, etc..
madaxe_again•1d ago
Walls are just as commonly used as borders. Want your neighbour to not nick your land? Put up a wall. Make it heavy and a pain in the ass to move.
nkrisc•1d ago
That's like saying the purpose of a blade is to cut, which while true, is a fairly useless statement. A blade may be an artisan's tool, or a soldier's weapon, or something you use to cut your food. All cutting implements but with quite different applications and functions.

So the question regarding the wall's function is what was it a barrier against? When we build houses, we put holes in the walls so that they are less of a barrier to people, yet remain an effective barrier against the external environment. Other walls are meant to be barriers to specific animals, yet completely permeable to others.

arp242•1d ago
And it goes on to explain why that's not so straightforward:

"Contrary to the traditional view of such walls as solely defensive structures, the research highlights the Gobi Wall's multifunctional role in boundary demarcation, resource management, and the consolidation of imperial control."

AStonesThrow•1d ago
Okay, so what's the Western Wall in Jerusalem for?

wall(8) (previously invoked from /bin) is a Unix command to "write all", and wall used to emit a humorous error message, which IIRC was output when you provided no text to send as a message:

  But what do you want to do with the wall?
And I believe this was, in turn, a reference to adventure games like Infocom's, where the parser may detect that you typed a recognized noun without a verb in front, like "hit wall" or "push wall" and give exactly the same message as a prompt to include a verb.
johnea•1d ago
A better link:

https://www.labrujulaverde.com/en/2025/05/the-mysterious-gob...

I wish people would stop linking to phys.org. It's primarily a spam ad promoting agregation site...

teh_klev•1d ago
Or, just link directly to the paper which isn't paywalled:

https://www.mdpi.com/2073-445X/14/5/1087

johnea•1d ago
Thanks for that link!

I didn't find it in my search...

anadem•1d ago
In the phys.org article:

> The paper is published in the journal Land.

the word 'published' links to the MDPI paper

johnea•8h ago
It's good to know the link was in the phys.org article. I didn't read it.

When I have interest in an article at that site, I search for the text of the headline, and try to identify the original source.

carefulfungi•1d ago
What aggregators do you prefer that surface papers similar to this one?
johnea•7h ago
I generally don't use aggregator sites.

I scan/read ~20 journalistic websites each morning. In the modern meaning of "journalism", obviously these sites are also publishing news from elsewhere, but they also have their own staff, and generate original articles.

The usual ones: Wash Post, NY Times, Guardian, El Pais, Asahi Shimbun. But also a number of local news sites: San Diego Union, LA Times, San Jose Mercury, SFGate (aggregator?). I used to have tabs for Ars Technica and El Reg, but now I only open those in response to a specific article.

Probably the only true aggregator I use, is HN. Which I monitor via the ##hntop IRC channel on libera.chat.

I also subscribe to RSS feeds from about a dozen blag sites.

Jun8•1d ago
This wall is usually referred to as Wall of Chinggis, although it has nothing to do with Genghis Khan. Here’s another paper from Nature about it: https://www.nature.com/articles/s41599-020-0524-2.

Here’s an interesting link that gives place names so you can look up the wall on Google maps (not much to see): https://www.escapetomongolia.com/blog/wall-of-chinggis-in-do.... According to it the wall starts at Bayan-Adarga (https://en.m.wikipedia.org/wiki/Bayan-Adarga,_Khentii) and continues to Gurvanzagal (https://en.m.wikipedia.org/wiki/Gurvanzagal).