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Remembering Magnetic Memories and the Apollo AGC

https://2earth.github.io/website/20260304.html
13•2earth•2d ago

Comments

bradley13•2d ago
I find it remarkable that magnetic core memory was used in (semi-)modern fighter aircraft. Their systems have to pass extreme vibration testing, and you would think that core memory would be very susceptible to vibration.

Core memory was in use a lot longer than people think. Some fighters being produced as recently as the 1980s still used it.

ocfnash•2d ago
According to http://madrona.ca/e/coremem/index.html

> I have seen it [core memory] in service as recently as 2004 in a telephony control application

alnwlsn•1d ago
As seen on Curious Marc, where some real AGC core rope ROMs are read:

https://www.youtube.com/watch?v=hckwxq8rnr0

They even have to work around some design mistakes made in the modules in order to read them correctly. Not many living people know more about the AGC than those guys (especially Mike Stewart).

Show HN: Apfel – The free AI already on your Mac

https://apfel.franzai.com
229•franze•3h ago•32 comments

Show HN: I built a frontpage for personal blogs

https://text.blogosphere.app/
21•ramkarthikk•24m ago•10 comments

April 2026 TLDR Setup for Ollama and Gemma 4 26B on a Mac mini

https://gist.github.com/greenstevester/fc49b4e60a4fef9effc79066c1033ae5
78•greenstevester•3h ago•27 comments

TDF ejects its core developers

https://meeksfamily.uk/~michael/blog/2026-04-02-tdf-ejects-core-devs.html
13•janvdberg•1h ago•3 comments

Google releases Gemma 4 open models

https://deepmind.google/models/gemma/gemma-4/
1572•jeffmcjunkin•20h ago•423 comments

Lower Price for ChatGPT Business

https://help.openai.com/en/articles/8792828-what-is-chatgpt-business
12•alxthm•1h ago•3 comments

Samsung Magician disk utility takes 18 steps and two reboots to uninstall

https://chalmovsky.com/2026/03/29/samsung-magician.html
25•chalmovsky•4d ago•4 comments

Decisions that eroded trust in Azure – by a former Azure Core engineer

https://isolveproblems.substack.com/p/how-microsoft-vaporized-a-trillion
904•axelriet•20h ago•396 comments

ESP32-S31: 320MHz 2C RV32IMAFCP+CLIC, 512KB SRAM, GbE, 802.11ax, 61 GPIO

https://www.espressif.com/en/news/ESP32_S31_Release
94•topspin•5d ago•51 comments

NHS staff refusing to use FDP over Palantir ethical concerns

https://www.freevacy.com/news/financial-times/nhs-staff-refusing-to-use-fdp-over-palantir-ethical...
127•chrisjj•3h ago•34 comments

What Category Theory Teaches Us About DataFrames

https://mchav.github.io/what-category-theory-teaches-us-about-dataframes/
50•mchav•5d ago•6 comments

'Fatal decision': EU slammed for caving to US pressure on digital rules

https://www.politico.eu/article/fatal-decision-eu-slammed-for-caving-to-us-pressure-on-digital-ru...
71•nickslaughter02•1h ago•38 comments

Bun: cgroup-aware AvailableParallelism / HardwareConcurrency on Linux

https://github.com/oven-sh/bun/pull/28801
5•tosh•1h ago•0 comments

The True Shape of Io's Steeple Mountain

https://www.weareinquisitive.com/news/hidden-in-the-shadow
74•carlosjobim•5d ago•1 comments

Tailscale's new macOS home

https://tailscale.com/blog/macos-notch-escape
491•tosh•18h ago•242 comments

Cursor 3

https://cursor.com/blog/cursor-3
455•adamfeldman•18h ago•341 comments

Artemis II's toilet is a moon mission milestone

https://www.scientificamerican.com/article/artemis-iis-toilet-is-a-moon-mission-milestone/
273•1659447091•1d ago•121 comments

H.264 Streaming Fees: What Changed, Who's Affected, and What It Means

https://www.streamingmedia.com/Articles/ReadArticle.aspx?ArticleID=173935
37•phantomathkg•1h ago•22 comments

Intel Assured Supply Chain Product Brief

https://www.intel.com/content/www/us/en/content-details/850997/intel-assured-supply-chain-product...
11•aw-engineer•3d ago•1 comments

Qwen3.6-Plus: Towards real world agents

https://qwen.ai/blog?id=qwen3.6
555•pretext•22h ago•189 comments

Good ideas do not need lots of lies in order to gain public acceptance (2008)

https://blog.danieldavies.com/2004/05/d-squared-digest-one-minute-mba.html
286•sedev•19h ago•132 comments

C89cc.sh – standalone C89/ELF64 compiler in pure portable shell

https://gist.github.com/alganet/2b89c4368f8d23d033961d8a3deb5c19
149•gaigalas•2d ago•48 comments

Show HN: Home Maker: Declare Your Dev Tools in a Makefile

https://thottingal.in/blog/2026/03/29/home-maker/
74•sthottingal•5d ago•43 comments

Proton meet isn't what they told you it was

https://www.sambent.com/proton-meet-isnt-what-they-told-you/
132•bundie•3h ago•116 comments

New Rowhammer attacks give complete control of machines running Nvidia GPUs

https://arstechnica.com/security/2026/04/new-rowhammer-attacks-give-complete-control-of-machines-...
72•01-_-•4h ago•5 comments

Vector Meson Dominance

https://johncarlosbaez.wordpress.com/2026/03/29/vector-meson-dominance/
40•chmaynard•5d ago•4 comments

ParadeDB (YC S23) Is Hiring Database Internal Engineers (Rust)

https://paradedb.notion.site/
1•philippemnoel•14h ago

LinkedIn is searching your browser extensions

https://browsergate.eu/
1789•digitalWestie•23h ago•727 comments

SSH certificates: the better SSH experience

https://jpmens.net/2026/04/03/ssh-certificates-the-better-ssh-experience/
7•jandeboevrie•3h ago•0 comments

RiskReady-open-source GRC platform with MCP gateway and human-approved mutations

https://github.com/riskreadyeu/riskready-community
4•danielminda7•2h ago•0 comments