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Show HN: Moli P2P – An ephemeral, serverless image gallery (Rust and WebRTC)

https://moli-green.is/
1•ShinyaKoyano•9m ago•0 comments

The Crumbling Workflow Moat: Aggregation Theory's Final Chapter

https://twitter.com/nicbstme/status/2019149771706102022
1•SubiculumCode•13m ago•0 comments

Pax Historia – User and AI powered gaming platform

https://www.ycombinator.com/launches/PMu-pax-historia-user-ai-powered-gaming-platform
2•Osiris30•14m ago•0 comments

Show HN: I built a RAG engine to search Singaporean laws

https://github.com/adityaprasad-sudo/Explore-Singapore
1•ambitious_potat•20m ago•0 comments

Scams, Fraud, and Fake Apps: How to Protect Your Money in a Mobile-First Economy

https://blog.afrowallet.co/en_GB/tiers-app/scams-fraud-and-fake-apps-in-africa
1•jonatask•20m ago•0 comments

Porting Doom to My WebAssembly VM

https://irreducible.io/blog/porting-doom-to-wasm/
1•irreducible•21m ago•0 comments

Cognitive Style and Visual Attention in Multimodal Museum Exhibitions

https://www.mdpi.com/2075-5309/15/16/2968
1•rbanffy•22m ago•0 comments

Full-Blown Cross-Assembler in a Bash Script

https://hackaday.com/2026/02/06/full-blown-cross-assembler-in-a-bash-script/
1•grajmanu•27m ago•0 comments

Logic Puzzles: Why the Liar Is the Helpful One

https://blog.szczepan.org/blog/knights-and-knaves/
1•wasabi991011•39m ago•0 comments

Optical Combs Help Radio Telescopes Work Together

https://hackaday.com/2026/02/03/optical-combs-help-radio-telescopes-work-together/
2•toomuchtodo•44m ago•1 comments

Show HN: Myanon – fast, deterministic MySQL dump anonymizer

https://github.com/ppomes/myanon
1•pierrepomes•50m ago•0 comments

The Tao of Programming

http://www.canonical.org/~kragen/tao-of-programming.html
1•alexjplant•51m ago•0 comments

Forcing Rust: How Big Tech Lobbied the Government into a Language Mandate

https://medium.com/@ognian.milanov/forcing-rust-how-big-tech-lobbied-the-government-into-a-langua...
2•akagusu•51m ago•0 comments

PanelBench: We evaluated Cursor's Visual Editor on 89 test cases. 43 fail

https://www.tryinspector.com/blog/code-first-design-tools
2•quentinrl•53m ago•2 comments

Can You Draw Every Flag in PowerPoint? (Part 2) [video]

https://www.youtube.com/watch?v=BztF7MODsKI
1•fgclue•59m ago•0 comments

Show HN: MCP-baepsae – MCP server for iOS Simulator automation

https://github.com/oozoofrog/mcp-baepsae
1•oozoofrog•1h ago•0 comments

Make Trust Irrelevant: A Gamer's Take on Agentic AI Safety

https://github.com/Deso-PK/make-trust-irrelevant
6•DesoPK•1h ago•3 comments

Show HN: Sem – Semantic diffs and patches for Git

https://ataraxy-labs.github.io/sem/
1•rs545837•1h ago•1 comments

Hello world does not compile

https://github.com/anthropics/claudes-c-compiler/issues/1
34•mfiguiere•1h ago•20 comments

Show HN: ZigZag – A Bubble Tea-Inspired TUI Framework for Zig

https://github.com/meszmate/zigzag
3•meszmate•1h ago•0 comments

Metaphor+Metonymy: "To love that well which thou must leave ere long"(Sonnet73)

https://www.huckgutman.com/blog-1/shakespeare-sonnet-73
1•gsf_emergency_6•1h ago•0 comments

Show HN: Django N+1 Queries Checker

https://github.com/richardhapb/django-check
1•richardhapb•1h ago•1 comments

Emacs-tramp-RPC: High-performance TRAMP back end using JSON-RPC instead of shell

https://github.com/ArthurHeymans/emacs-tramp-rpc
1•todsacerdoti•1h ago•0 comments

Protocol Validation with Affine MPST in Rust

https://hibanaworks.dev
1•o8vm•1h ago•1 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
5•gmays•1h ago•0 comments

Show HN: Zest – A hands-on simulator for Staff+ system design scenarios

https://staff-engineering-simulator-880284904082.us-west1.run.app/
1•chanip0114•1h ago•1 comments

Show HN: DeSync – Decentralized Economic Realm with Blockchain-Based Governance

https://github.com/MelzLabs/DeSync
1•0xUnavailable•1h ago•0 comments

Automatic Programming Returns

https://cyber-omelette.com/posts/the-abstraction-rises.html
1•benrules2•1h ago•1 comments

Why Are There Still So Many Jobs? The History and Future of Workplace Automation [pdf]

https://economics.mit.edu/sites/default/files/inline-files/Why%20Are%20there%20Still%20So%20Many%...
2•oidar•1h ago•0 comments

The Search Engine Map

https://www.searchenginemap.com
1•cratermoon•2h ago•0 comments
Open in hackernews

Spray Cooling – Recreating Supercomputer Cooling on a Desktop CPU [video]

https://www.youtube.com/watch?v=yEBSuk20gvc
10•zdw•3mo ago

Comments

ggm•3mo ago
Flourinert was very.. yellow. The cray-1 had a see-through plastic recirculation tank with a float, much like a toilet. Oddly, hidden away inside a cabinet. We hung a plastic squeaky Lobster in ours (-UQ) because we'd named the Cray "yabby" for obvious reasons.

I helped in very minor ways commissioning the system, so I got to play around the edges. Looking at hotspots through an old school IR camera with about 127 scanlines was fun too.

Hint: just because a raised floor was OK for IBM cooling pipes doesn't mean it meets minimum bend radius for a Cray. Oh dear..

everyone•3mo ago
Not super related but I investigated cooling solutions for my own desktop pc, and I got the impression that the typical closed loop liquid cooling systems are pointless. They're not quieter and dont cool any better than a good air cooling solution. Thoughts?
Numerlor•3mo ago
The cooling should be better, especially with higher wattage chips (either out of the box, or overclocked). The AIOs have gotten a lot better with faster pumps.

Noise should also be lower again assuming you'd be actually cooling enough power with an air cooler that'd require higher fan RPMs. Pump noise differs by model, with quite a lot of them being silent

Avlin67•3mo ago
try with 800W xeon/threadripper
barrkel•3mo ago
The guys who built my 9995wx threadripper pro system believed that AIO was basically necessary for the chip. The radiator part of it covers almost the entire top of my case, pushing air through.
Vecr•3mo ago
The coolers get so heavy that they don't make good contact if your motherboard is not horizontal. For mainstream CPUs that's why a cheap closed loop cooler is better.
everyone•3mo ago
Makes me wonder why old fashioned flat desktops aren't more popular.. they wouldnt have that issue + the gpu wont have it's fans facing down + it wont be a giant weight hanging off the mobo.
estimator7292•3mo ago
They're impractically large. Turning a typical PC case on its side takes up a huge area of desk/floor space.

Plus you can't see all your OLED RAM through the glass side.

noir_lord•3mo ago
Depends on the CPU - X3D's really don't need it, the X's can if you want to uncap the power limits.

I put a 420mm AIO on a 7950X3D (because I was originally getting a 7950X but the X3D went on sale) - the fans barely come on most of the time and the absolute hottest I've ever got it was 77C during the soak in test (stress-ng on 32 cores for a few hours).

If I was building another on say the 9800X3D I'd go back to air - the AIO's only have a five year warranty so you need to replace them fairly often vs air where you just blast the dust off.

If you are running a CPU that can routinely site over 200W under heavy load the AIO's can make sense.

tgsovlerkhgsel•3mo ago
I bought a used pre-built HP Omen gaming PC during the GPU price madness. The CPU is liquid cooled and the whole thing sounds like a jet engine under the slightest load. I've never owned a liquid cooled PC before, and this one is by far the loudest I've ever had.
kadoban•3mo ago
That's likely an issue of tuning or the thermal paste is dried out or something. No particular reason the fans should have to go that hard immediately. The fan speed should really be a function of the liquid temperature more than the cpu temp. The cpu temp will fluctuate a good bit, but the water temp goes up quite slowly under load.

Is it an AIO, or a custom loop with a resevoir and such?

But yeah, short story: water cooling is very rarely worth it in a consumer pc. But it shouldn't sound like you're describing, it's just overcomplicated and too expensive.

quickthrowman•3mo ago
Why did the PC liquid cooling segment redefine terms that have been used in HVAC for over 100 years, with worse definitions?

A real ‘closed loop system’ is a chilled water loop with no evaporative cooling tower.

A real ‘open loop system’ is a chilled water loop with an evaporative cooling tower. The loop is open to the atmosphere at the cooling tower.

What the computer cooling industry calls a ‘closed loop system’ (a refrigerant based cooler that comes with precharged lines) normal people call them ‘a closed loop system with pre-charged linesets’.

Split A/C units often come with precharged linesets that you just plug in to the condenser and evaporator (air handler) without having to charge the system with refrigerant.

Now, for some on-topic commentary. If you put together what I will call a closed loop system consisting of tubing, water blocks, a pump, and a remote condenser, it could potentially be almost silent. The only things that make noise are the fans and pumps and those can be located anywhere you want with enough tubing. If you’re trying to dissipate 1kW of heat, it’ll be a lot easier with a heat pump than with air alone, liquid-to-air heat exchangers are quite amazing.