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Previewing GPT‑5.6 Sol: a next-generation model

https://openai.com/index/previewing-gpt-5-6-sol/
722•minimaxir•5h ago•447 comments

The gap between open weights LLMs and closed source LLMs

https://blog.doubleword.ai/frontier-os-llm
68•kkm•1h ago•43 comments

A C++ implementation of a fast hash map and hash set using hopscotch hashing

https://github.com/Tessil/hopscotch-map
31•gjvc•1h ago•2 comments

U.S. government will decide who gets to use GPT-5.6

https://www.washingtonpost.com/technology/2026/06/26/openai-says-us-government-will-vet-users-its...
668•alain94040•4h ago•807 comments

MicroVMs: Run isolated sandboxes with full lifecycle control

https://aws.amazon.com/blogs/aws/run-isolated-sandboxes-with-full-lifecycle-control-aws-lambda-in...
224•justincormack•3d ago•133 comments

We Can Still Stop California's 3D Printer Surveillance Scheme

https://www.eff.org/deeplinks/2026/06/we-can-still-stop-californias-3d-printer-surveillance-scheme
87•hn_acker•1h ago•8 comments

The "Bizarre Headgear" exhibit at the Sam Noble museum

https://svpow.com/2026/05/15/the-bizarre-headgear-exhibit-at-the-sam-noble-museum-is-incredible/
60•surprisetalk•3d ago•6 comments

Show HN: Smart model routing directly in Claude, Codex and Cursor

https://github.com/workweave/router
129•adchurch•6h ago•81 comments

Ultrasound imaging of the brain

https://alephneuro.com/blog/ultrasound-brain
217•rossant•11h ago•82 comments

Hightouch (YC S19) Is Hiring

https://hightouch.com/careers#open-positions
1•joshwget•1h ago

The open source DOCX editor submitted to HN a few weeks ago has been deleted

23•gcanyon•1h ago•20 comments

What Is a Nomogram and Why Would It Interest Me?

https://lefakkomies.github.io/pynomo-doc/introduction/introduction.html#what-is-a-nomogram-and-wh...
63•Eridanus2•5h ago•14 comments

PlayStation Is Deleting 551 Movies from Customers' Accounts

https://kotaku.com/playstation-store-movies-digital-studio-canal-terminator-2000711013
86•ortusdux•2h ago•30 comments

Modern GPU Programming for MLSys

https://mlc.ai/modern-gpu-programming-for-mlsys/
51•crowwork•3d ago•5 comments

A human postmortem of the 1996 AOL outage

https://ngrok.com/blog/aol-was-down-1996
21•EndEntire•2d ago•2 comments

The National Parks Were Reportedly Told to Stay Silent on Deaths

https://www.outsideonline.com/outdoor-adventure/environment/nps-internal-memo-deaths/?link_source...
42•LostMyLogin•1h ago•7 comments

Show HN: Autofit2 – End-to-end pipeline for multilingual text classification

https://github.com/neospe/autofit2
9•leschak•1d ago•0 comments

Gossamer: a Rust-flavoured language with real goroutines and pause-free memory

https://gossamer-lang.org/
58•mwheeler•4h ago•43 comments

Long Wave radio era set to end with Droitwich switch-off

https://www.bbc.com/news/articles/c74yn7v7k4qo
35•speckx•3h ago•15 comments

Pre-Modern Armies for Worldbuilders, Part III: Paying for It

https://acoup.blog/2026/06/26/collections-pre-modern-armies-for-worldbuilders-part-iii-paying-for...
26•jfoucher•4h ago•2 comments

The Art of Kite Flying (1430–1929)

https://publicdomainreview.org/collection/art-of-kite-flying/
17•benbreen•4d ago•9 comments

Lippmann Photography

https://www.jonhilty.com/lippmann
6•andsoitis•2d ago•0 comments

Data centers trigger voter backlash

https://www.newsweek.com/cost-me-the-election-data-centers-trigger-voter-backlash-12118327
136•randycupertino•5h ago•244 comments

LaTeX.wasm: LaTeX Engines in Browsers

https://www.swiftlatex.com/
73•theanonymousone•3d ago•27 comments

The US lifts its block on Mythos 5

https://twitter.com/Techmeme/status/2070638481265905837
6•bobrenjc93•11m ago•0 comments

My Steam Machine is a 50ft HDMI cable

https://blog.matthewbrunelle.com/my-steam-machine-is-a-50ft-hdmi-cable/
136•speckx•3d ago•146 comments

Bipartite Matching Is in NC

https://scottaaronson.blog/?p=9851
104•amichail•4d ago•16 comments

Show HN: WebBase-III – dBASE III rebuilt in the browser with its own interpreter

https://github.com/DDecoene/WebBaseIII
74•ddecoene•2d ago•25 comments

Springer Nature has removed two studies by Max Planck

https://www.science.org/content/article/why-have-papers-one-history-s-most-famous-physicists-been...
332•adharmad•8h ago•163 comments

Slisp: Simple Lisp compiler (Linux/amd64)

https://github.com/skx/slisp
48•stevekemp•4h ago•2 comments
Open in hackernews

Long Wave radio era set to end with Droitwich switch-off

https://www.bbc.com/news/articles/c74yn7v7k4qo
35•speckx•3h ago

Comments

_whiteCaps_•1h ago
Seems like everyone's shutting down radio services. CHU and Weather radio in Canada too :(
mschuster91•1h ago
These transmitters consume insane amounts of power. Per Wikipedia, that's 500 kW of rated transmission power, so probably a solid megawatt of grid power input.

At 30 ct/kWh, that's 300€ per hour, 7200€ per day and about 2.6 million € a year - for a customer base that is only decreasing.

[1] https://en.wikipedia.org/wiki/Droitwich_Transmitting_Station

reaperducer•44m ago
Is that emitted power, consumed power, or effective radiated power? Without knowing that, your power calculations have no meaning.

Radio stations are usually measured by the last of those: Effective radiated power.

You can have a radio station with a 50,000 watt ERP, but running only a 2,500 watt transmitter.

For FM radio stations, it's all about the height of the transmitter above average terrain. For AM, it's about the ground conductivity and frequency.

I once worked at a 1,000-watt AM station that had a signal much larger and clearer signal than the 5,000-watt AM station a few miles away.

I'm not a radio engineer, but I'm sure there are plenty on HN who can correct and clarify what I've written.

BuildTheRobots•6m ago
Also bear in mind that Droitwitch is radiating 3 different services. Talk Sport (1053 kHz), Radio 4 (198 kHz) and Radio Five Live (693 kHz).

My suspicion is that this means an exciter and a stack of amps per service, which then go through a two stage combiner and out to the antenna. There might even be a pair of exciters and amps per service depending on redundancy.

The combiners (certainly for FM/DAB/TV services) also cause cumulative attenuation as the signal gets combined each time, so even if all 3 are radiating at the same power, the first in the chain might need twice as much amplification to make up for losses.

yakkers•7m ago
Doesn't excuse CHU: two 3kW, one 5kW ERP.

And by the virtue of shortwave propagation, it could be heard across the world. For the past month and a half (from when the news of its impending shutdown was revealed) I was regularly picking it up in Australia right up until the bitter end.

jmclnx•1h ago
That is too bad, you would think these could be kept active for historical purposes. But seems these services are all being turned off even though I heard a few were very useful in this day and age.
cjs_ac•11m ago
IIRC, their operation relies on enormous vacuum tubes that the BBC can’t get replacements for any more.
nickcw•1h ago
The Droitwich transmitter used to transmit on exactly 200 kHz which I always thought was very cool, but it moved to 198 kHz in 1988 to better harmonize with European stations.

The program was mostly the same as BBC Radio 4 but it used to diverge at certain times of day. I used to be woken up at 5am every day by my parents clock radio with the farming news which was very dull, but easy to sleep through.

reaperducer•41m ago
It was my father's morning alarm, too. But he was a couple of thousand miles away in New York state.

That, and Atlantic 252 (I believe now long gone) were what he woke up to every morning.

gavinward•12m ago
Despite the name I would not have guessed you could pick up Atlantic 252 in the US. The quality of it wasn't great for listening to music.

https://en.wikipedia.org/wiki/Atlantic_252

"Although the transmitter was in Ireland, the signal's reach meant that it was often looked upon as a "UK national station". Reception reports were received from such locations as Berlin, Finland, Ibiza and Moscow."

mark-r•30m ago
Thanks for mentioning the actual frequency. The article says "long wave" many times without specifying what it actually means.
davidferguson•57m ago
Online stream for those without a LW AM receiver: https://www.youtube.com/watch?v=Ugd8G5w-Sfo
binaryturtle•54m ago
As long we still have DCF77…
goodthenandnow•39m ago
That station is said to be one of the signals used by the UK’s nuclear subs to assess the state of the country in a war scenario.

https://en.wikipedia.org/wiki/Letters_of_last_resort#:~:text...