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The electromechanical angle computer inside the B-52 bomber's star tracker

https://www.righto.com/2026/04/B-52-star-tracker-angle-computer.html
151•NelsonMinar•3h ago•46 comments

Migrating from DigitalOcean to Hetzner

https://isayeter.com/posts/digitalocean-to-hetzner-migration/
563•yusufusta•6h ago•307 comments

State of Kdenlive

https://kdenlive.org/news/2026/state-2026/
281•f_r_d•8h ago•94 comments

Thoughts and feelings around Claude Design

https://samhenri.gold/blog/20260418-claude-design/
13•cdrnsf•1h ago•1 comments

Show HN: MDV – a Markdown superset for docs, dashboards, and slides with data

https://github.com/drasimwagan/mdv
51•drasim•5h ago•17 comments

Scientists discover "cleaner ants" that groom giant ants in Arizona desert

https://www.sciencedaily.com/releases/2026/04/260414075641.htm
51•t-3•3d ago•23 comments

Young sons of U.S. marshal ride horseback from Oklahoma to New York (2018)

https://texascooppower.com/the-astonishing-ride-of-the-abernathy-boys/
24•mhb•1h ago•5 comments

Michael Rabin has died

https://en.wikipedia.org/wiki/Michael_O._Rabin
342•tkhattra•3d ago•72 comments

Graphs That Explain the State of AI in 2026

https://spectrum.ieee.org/state-of-ai-index-2026
37•bryanrasmussen•3h ago•22 comments

Sumida Aquarium Posts 2026 Penguin Relationship Chart, with Drama and Breakups

https://www.sumida-aquarium.com/special/sokanzu/en/2026/
117•Lwrless•3d ago•5 comments

Opus 4.7 to 4.6 Inflation is ~45%

https://tokens.billchambers.me/leaderboard
321•anabranch•4h ago•350 comments

Fuzix OS

https://www.fuzix.org/
50•DeathArrow•5h ago•21 comments

UpCodes (YC S17) Is Hiring SDRs to Help Make Construction More Productive

https://up.codes/careers?utm_source=HN
1•Old_Thrashbarg•3h ago

Show HN: AI Subroutines – Run automation scripts inside your browser tab

https://www.rtrvr.ai/blog/ai-subroutines-zero-token-deterministic-automation
7•arjunchint•23h ago•0 comments

80386 Memory Pipeline

https://nand2mario.github.io/posts/2026/80386_memory_pipeline/
53•wicket•4d ago•10 comments

Show HN: Remoroo. trying to fix memory in long-running coding agents

https://www.remoroo.com
9•adhamghazali•4d ago•1 comments

Amiga Graphics Archive

https://amiga.lychesis.net/
213•sph•14h ago•57 comments

Understanding the FFT Algorithm (2013)

https://jakevdp.github.io/blog/2013/08/28/understanding-the-fft/
28•peter_d_sherman•3d ago•2 comments

Category Theory Illustrated – Orders

https://abuseofnotation.github.io/category-theory-illustrated/04_order/
204•boris_m•13h ago•56 comments

College instructor turns to typewriters to curb AI-written work

https://sentinelcolorado.com/uncategorized/a-college-instructor-turns-to-typewriters-to-curb-ai-w...
3•gnabgib•1h ago•0 comments

It's OK to compare floating-points for equality

https://lisyarus.github.io/blog/posts/its-ok-to-compare-floating-points-for-equality.html
148•coinfused•4d ago•98 comments

Show HN: I made a calculator that works over disjoint sets of intervals

https://victorpoughon.github.io/interval-calculator/
272•fouronnes3•19h ago•48 comments

4-bit floating point FP4

https://www.johndcook.com/blog/2026/04/17/fp4/
6•chmaynard•3h ago•2 comments

Why Japan has such good railways

https://worksinprogress.co/issue/why-japan-has-such-good-railways/
238•RickJWagner•7h ago•251 comments

The USDA's gardening zones have shifted. (Interactive app and map) (2024)

https://apps.npr.org/plant-hardiness-garden-map/
48•nuke-web3•3h ago•5 comments

The quiet disappearance of the free-range childhood

https://bigthink.com/mind-behavior/the-quiet-disappearance-of-the-free-range-childhood/
146•sylvainkalache•8h ago•152 comments

Towards trust in Emacs

https://eshelyaron.com/posts/2026-04-15-towards-trust-in-emacs.html
167•eshelyaron•3d ago•25 comments

Rail: A self-hosting language that speaks TLS alone

https://github.com/zemo-g/rail
5•zem0g•3h ago•3 comments

A Dumb Introduction to Z3 (2025)

https://ar-ms.me/thoughts/a-gentle-introduction-to-z3/
56•y1n0•4d ago•24 comments

The simple geometry behind any road

https://sandboxspirit.com/blog/simple-geometry-of-roads/
112•azhenley•2d ago•12 comments
Open in hackernews

IMF says America's $39T national debt is a global problem

https://finance.yahoo.com/economy/policy/articles/world-going-broke-imf-says-194850050.html
21•tcp_handshaker•2h ago

Comments

jfengel•1h ago
An old joke: If you owe the bank a thousand dollars, it's your problem. If you owe the bank a billion dollars, it's the bank's problem.

Apparently we now know what it takes to become the world's problem.

cyanydeez•1h ago
The petrodollar is the only thing that props up Republicans "economic theory" and they seem entirely confused as to it's real value. Unless you assume they're all economic masterminds rather than degenerate gamblers.
notyourwork•30m ago
Soft power is no fun. Let’s send in missiles and aircraft carriers otherwise we’re not making America great.
blcknight•1h ago
Trump just needs to mint a 39T coin with his face on it.