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I Write Games in C (yes, C)

https://jonathanwhiting.com/writing/blog/games_in_c/
45•valyala•2h ago•19 comments

We Mourn Our Craft

https://nolanlawson.com/2026/02/07/we-mourn-our-craft/
228•ColinWright•1h ago•247 comments

SectorC: A C Compiler in 512 bytes

https://xorvoid.com/sectorc.html
31•valyala•2h ago•4 comments

Hoot: Scheme on WebAssembly

https://www.spritely.institute/hoot/
128•AlexeyBrin•8h ago•25 comments

Brookhaven Lab's RHIC Concludes 25-Year Run with Final Collisions

https://www.hpcwire.com/off-the-wire/brookhaven-labs-rhic-concludes-25-year-run-with-final-collis...
8•gnufx•1h ago•1 comments

The AI boom is causing shortages everywhere else

https://www.washingtonpost.com/technology/2026/02/07/ai-spending-economy-shortages/
132•1vuio0pswjnm7•9h ago•161 comments

Stories from 25 Years of Software Development

https://susam.net/twenty-five-years-of-computing.html
71•vinhnx•5h ago•9 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
836•klaussilveira•22h ago•251 comments

U.S. Jobs Disappear at Fastest January Pace Since Great Recession

https://www.forbes.com/sites/mikestunson/2026/02/05/us-jobs-disappear-at-fastest-january-pace-sin...
181•alephnerd•2h ago•124 comments

Al Lowe on model trains, funny deaths and working with Disney

https://spillhistorie.no/2026/02/06/interview-with-sierra-veteran-al-lowe/
57•thelok•4h ago•8 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
1064•xnx•1d ago•613 comments

Reinforcement Learning from Human Feedback

https://rlhfbook.com/
85•onurkanbkrc•7h ago•5 comments

Start all of your commands with a comma (2009)

https://rhodesmill.org/brandon/2009/commands-with-comma/
493•theblazehen•3d ago•178 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
215•jesperordrup•12h ago•77 comments

Show HN: I saw this cool navigation reveal, so I made a simple HTML+CSS version

https://github.com/Momciloo/fun-with-clip-path
15•momciloo•2h ago•0 comments

Coding agents have replaced every framework I used

https://blog.alaindichiappari.dev/p/software-engineering-is-back
231•alainrk•7h ago•366 comments

France's homegrown open source online office suite

https://github.com/suitenumerique
577•nar001•6h ago•261 comments

Selection Rather Than Prediction

https://voratiq.com/blog/selection-rather-than-prediction/
9•languid-photic•3d ago•1 comments

A Fresh Look at IBM 3270 Information Display System

https://www.rs-online.com/designspark/a-fresh-look-at-ibm-3270-information-display-system
41•rbanffy•4d ago•8 comments

72M Points of Interest

https://tech.marksblogg.com/overture-places-pois.html
30•marklit•5d ago•3 comments

History and Timeline of the Proco Rat Pedal (2021)

https://web.archive.org/web/20211030011207/https://thejhsshow.com/articles/history-and-timeline-o...
19•brudgers•5d ago•4 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
114•videotopia•4d ago•35 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
80•speckx•4d ago•91 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
278•isitcontent•22h ago•38 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
201•limoce•4d ago•112 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
289•dmpetrov•23h ago•156 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
558•todsacerdoti•1d ago•272 comments

Making geo joins faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
155•matheusalmeida•2d ago•48 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
431•ostacke•1d ago•111 comments

Show HN: Kappal – CLI to Run Docker Compose YML on Kubernetes for Local Dev

https://github.com/sandys/kappal
22•sandGorgon•2d ago•12 comments
Open in hackernews

What we find in the sewers

https://www.asimov.press/p/sewers
70•surprisetalk•5mo ago

Comments

bediger4000•5mo ago
Don't miss footnote 5
LargoLasskhyfv•5mo ago
The https://en.wikipedia.org/wiki/Crinoline as early porta potty :>
alakra•5mo ago
I was slightly hoping this was a piece about ninja turtles.
LargoLasskhyfv•5mo ago
Try https://en.wikipedia.org/wiki/C.H.U.D. instead.
southernplaces7•5mo ago
Absolute favorite of a B movie, and today something of a historical gem too, showing a grimy, grim Manhattan underworld (literally) that's long gone, or at least more hidden than ever.
comrade1234•5mo ago
Here in Zürich? Mostly cocaine...

https://www.eawag.ch/en/info/portal/news/news-detail/drugs-a...

Nifty3929•5mo ago
It
cruffle_duffle•5mo ago
There are surprisingly few YouTubers down in the sewers but if you look you’ll find them.

The best is some guy in Czechia who routinely explores the vast trunk sewers under Brno, Prague and others. Often times he will visit during a rain storm and watch the combined sewer overflows do their thing. It gets pretty wild down there!

Up until about a year ago it was all in Czech but recently he has been adding English subtitles as well, which are very informative. The dude clearly does a lot of homework before visiting.

Examples: https://youtu.be/GQtzYgH8buc?si=IldzL7KEEhdObjtJ

https://youtu.be/ZUwXZbkEXWE?si=UmzGMbHXSQAt6hjx

And one of my personal favorites is this absolutely massive CSO which somehow has a plaque memorializing some civil engineer on one of the walls: https://youtu.be/5LVlj-6qwZU?si=lwMdKgVrA7BRuvt2

I highly recommend browsing the channel because there are plenty of videos of him exploring deep sewer tunnels and stuff. Channel: https://youtube.com/@kanalismus35

The other guy I’ll watch goes under London. Not nearly as much content but the “artisan brickwork” down in older London sewers cannot be beat.

https://youtube.com/@valdigger

You’ll occasionally find videos of people going into storm drains and tunnels but those aren’t nearly as interesting in my opinion.

dcminter•5mo ago
I might have to watch the London one - my mind was blown a few years ago to learn that in the Fleet River sewer (storm drain really) you can still see the barge mooring rings from before the river was paved over in the mid-1700s.
snarf21•5mo ago
There are quite a few who work specifically at unblocking the sewers (and a lot in Australia for some reason). Mostly they find tree roots but tampons and wipes are the other major culprits that they have to remove. These plus the roots are a bad combination.
filiptw•5mo ago
Hey, I'm quite into the topic of sewer systems exploration (especially the older, historical ones) for a few years now, and this is the first time I'm seeing a question like yours, so I feel obliged to share all the sources I have found.

general disclaimer: following sources are in various languages, but I'm still including them, since the videos don't have much talking in them, and you can easily translate blog sources.

1) Youtube: I know both Kanalismus35 and valdigger, and they are both the best, most in-depth as well as possibly the only real Youtubers in the sewers topic. However, there are at least a few more:

- https://www.youtube.com/@zemi02 - yet another creator from Czechia, Brno exploring bits and pieces of the sewer infrastructure, maybe not so refined as @kanalismus35 but worth checking out as well

- https://www.youtube.com/@KanalVision - from Germany, not much context or inisght given but still nice shots of huge sewers

- https://www.youtube.com/@penetratorscavenger/ - from Poland, Warsaw, they do urbex in general, but also go deep into historical sewers in Warsaw. Examples: https://www.youtube.com/watch?v=SGcou71yKoU https://www.youtube.com/watch?v=rVOVmXZLE6c https://www.youtube.com/watch?v=oZJ0L3DPAFc

2) Websites/blogs

- https://guerrillaexploring.webador.co.uk/content/draining - from England, London, incredibly in-depth context, knowledge and exploration of legendary London sewers - an absolute must read & see if you are into the topic

- https://penetratorscavengerteam.blogspot.com/search/label/ka... - from Poland, Warsaw, already mentioned before, they have much more thorough and in-depth content about Warsaw sweres with tons of photos on their blog than on yt. Just install a web page translation browser extension and you are good to go

- https://www.sub-urban.com - specifically about London, also a great, in-depth source

- https://www.28dayslater.co.uk/forum/uk-draining-forum.94/ of course this one for all of UK

Summing up, I know I went quite a bit off-topic here, but I hope I helped a bit regarding youtube sources as well. Also happy to get to know any other Youtubers doing some proper exploration.

yehoshuapw•5mo ago
what you get out of it, depends on what you put into it
lloydatkinson•5mo ago
This was a really fascinating read.
ProllyInfamous•5mo ago
I spent the first six months of my apprenticeship working in lift stations ("lift" poop up every mile or so, so gravity can keep sludge moving").

The item missing from the article that disgusted me most was the massive amount of tampons which found themselves ejected from the semi-solid pumps. From afar, they appear to be a moat of dead mice. It was literally somebody's job to shovel these up, as nothing more than routine.

Who is still tossing these/trash into toilets?

SoftTalker•5mo ago
> Who is still tossing these/trash into toilets?

Most women who use them? Sit down, pull it out, drop it, flush. It's the easiest thing.

ProllyInfamous•5mo ago
Please use (or provide) the little trashcan that ought'ta sit next to any toilet.

This "simple" action far exceeds half of sewage maintenance budgets.

Only flush TP, liquids, and poop — does not matter if sewer / septic.

Src: former sewer pump repair guy; have had a $eptic $ystem ruined by gue$t tampon$.

kulahan•5mo ago
This requires a PSA, not internet comments. And honestly, I imagine people are willing to pay the extra maintenance dollars to not have to take that extra step. We all appreciate some kind of convenience.
deadbabe•5mo ago
No.
quesera•5mo ago
It's a classic problem of externalized consequences. But with the added challenge that the action happens in a very private place.

Also, this tends to be a topic where the actor has a dramatically negative interest in suggestions from the person who will have to deal with the problem.

Nevertheless, septic fields cost $20-30K, and municipal sewer management is also very expensive.

Aside (but not far): Someone should honestly bring litigation against the wipes that call themselves flushable.

ProllyInfamous•5mo ago
>wipes that call themselves flushable

There is no such product, despite many such packaging claims.

>the person who will have to deal with the problem

Plumbers will always have work, but there may be environmental consequences in the interim:

I renovated a small garage apartment, located in the wealthiest part of town (Lookout Mountain). The property had been owned by the same family since the 1930s, and was home of the same heir since the early 1990s (until renovated ~2022).

After the historic toilet/flange rusted out, Heir lived their for another thirty years squatting into a hole that dropped down into a bucket (in the garage, below). He would then run off into the forest to dump the poop, once festidiously heaping. As he aged, the loads got smaller and smaller (until one day he just decided to stop emptying it, until quickly thereafter Going Home, thank god / RIP).

Millions and millions of dollars in neighboring properties, and this legacy of the mountain was contributing his own surface run-off into Poopy Falls' tributaries (Ruby Falls, which is an underground waterfall made up of recycled septic field line water of the affluent mountaintop community, above). Just a surface stream of solid effluent / shit.

>Nevertheless, septic fields cost $20-30K

That's if you're under ideal conditions. Some situations (e.g. hillside) can quickly approach $100k+.

throwway120385•5mo ago
Sometimes they just fall out.
quesera•5mo ago
... and if that were the scale of the problem, it would not be one. :)
sho_hn•5mo ago
Maybe I have a particularly florid imagination, but it's hard to believe that tampons would be the most digusting thing found in sewers. I mean, they rank far below even just fecal matter on the icky scale.

My anticipation for shock and & are for clicking this thread is so far not met.

ProllyInfamous•5mo ago
Poop doesn't really exist very long. Neither does toilet paper. Mostly, it amalgamates into "sludge."

Tampons don't succumb to the namesake maserators, and are instead ejected (there is a foreign debris port for anything that doesn't drip out centrifugally).

Within the darker corners of sewerlines you find the fat plaques, which are disgusting (but pass through the pumps in smaller pieces). But...

Tampons everywhere. There's even moats to catch 'em all.

wodenokoto•5mo ago
I believe a lot of them still says “flushable”, even though the plumber disagrees.
ProllyInfamous•5mo ago
>"flushable"

There is no such product, despite many such packaging claims.

Other non-flushables: condoms; cigarette (& so many clear wrappers!); candy wrappers; tampons.

jjwiseman•5mo ago
I talked to a woman who worked for the Los Angeles Dept. of Water and Power (LADWP) at a party once and she told me about some of the things they find in the sewers. The ones I remember are tampons, a dead horse, and money.
asdff•5mo ago
One wonders about the circumstances of a horse dying in a sewer. There is tons of illegal dumping plaguing the LA sewer system. From a 2021 sewer discharge event brought on by a clog basically:

"Plant Manager Tim Dafeta said on Tuesday that the July 11 sewage spill was caused when significant quantities of debris blocked the Plant's filtering screens, mostly "everyday mundane trash," including wipes, but also construction material and other large debris like bike parts and couches also played a role in the spill.

LASAN Chief Operating Officer Traci Minamide also said that: "Initial theories are potential areas within the sewer where we have structures such as diversion structures of siphons of broad structures, something different than the normal straight-line type that could have caused some hangup of debris and some buildup over time that then on July, 11 let loose.""

https://www.westsidecurrent.com/news/one-month-zero-answers-...

BrandoElFollito•5mo ago
If you are in Paris you can visit the sewers (https://musee-egouts.paris.fr/en/). It is surprisingly entertaining.
araes•5mo ago
After reading the article, be interesting to see an academic study exhaustively cataloguing the chemical compounds found in sewer systems that might be possible mining targets and issues to deal with.

"We took 1000 samples from the sewers at various locations, at 1/10 gallon increments, 100 gallons total, and found: H2S, H2SO4, HS⁻, S²⁻, NH3, CH4, CO2, CHCl3, CH3Cl, CCl2F2, C6H4Cl2, C2H6O, CH2Cl2, C5H12, C3H8, C2Cl4, C2HCl3, C6H5CH3, C8H10, PO4-P, H5P3O10, H3PO4, PO3−, and C10H15N5O10P2 of #% and ug/m3 in gaseous, liquid, solid forms. Percentage of low degradability human products (wipes, tampons, plastic bags, wrappers) were #%, ug/m3. Percentages of oil / grease / and solidified food waste were #%, ug/m3."

There's a few papers on a quick search:

Sulphur: https://www.sciencedirect.com/science/article/abs/pii/S03014...

VOCs: https://www.sciencedirect.com/science/article/abs/pii/S03043...

Phosphorous: https://www.sciencedirect.com/science/article/abs/pii/S22133...

gilleain•5mo ago
Most of those are small molecules, so nearly unambiguous (C2H6O is either ethanol or dimethylether).

However, C10H15N5O10P2 is more tricky. A quick google suggests https://en.wikipedia.org/wiki/Adenosine_diphosphate (ADP) which seems plausible.

araes•5mo ago
You're correct on at least where the guess about possible chemicals came from. Search on possible phosphorous chemicals came back with Polyphosphates (https://en.wikipedia.org/wiki/Polyphosphate) as a major group, of which ADP (C10H15N5O10P2) is a major percentage. Polyphosphates in addition to Organic Phosphorous (https://en.wikipedia.org/wiki/Organophosphorus_chemistry) and Orthophosphate [PO4]3− (https://en.wikipedia.org/wiki/Phosphate) as the other major constituents.

https://www.sciencedirect.com/science/article/abs/pii/S22133...

A further search brought up that that Chinese found Apatite phosphorous is actually a major part. Triangular admixture of Ca10(PO4)6(OH)2, Ca10(PO4)6F2 and Ca10(PO4)6Cl2 https://en.wikipedia.org/wiki/Apatite

https://www.sciencedirect.com/science/article/abs/pii/S09560...