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Stories from September 20, 2025
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1.
Ultrasonic Chef's Knife (seattleultrasonics.com)
824 points by hemloc_io 3 months ago | 671 comments
2.
Scream cipher (sethmlarson.dev)
300 points by alexmolas 3 months ago | 102 comments
3.
$2 WeAct Display FS adds a 0.96-inch USB information display to your computer (cnx-software.com)
409 points by smartmic 3 months ago | 169 comments
4.
Escapee pregnancy test frogs colonised Wales for 50 years (2019) (bbc.com)
135 points by Luc 3 months ago | 59 comments
5.
FLX1s phone is launched (furilabs.com)
337 points by slau 3 months ago | 262 comments
6.
MapSCII – World map in terminal (github.com/rastapasta)
218 points by _august 3 months ago | 21 comments
7.
I’m Not a Robot (neal.fun)
516 points by meetpateltech 3 months ago | 268 comments
8.
The best YouTube downloaders, and how Google silenced the press (windowsread.me)
579 points by Leftium 3 months ago | 243 comments
9.
Designing NotebookLM (jasonspielman.com)
295 points by vinhnx 3 months ago | 84 comments
10.
Images over DNS (dgl.cx)
201 points by dgl 3 months ago | 50 comments
11.
If all the world were a monorepo (jtibs.substack.com)
277 points by sebg 3 months ago | 75 comments
12.
PYREX vs. pyrex: What's the difference? (corning.com)
173 points by lisper 3 months ago | 122 comments
13.
Show HN: Zedis – A Redis clone I'm writing in Zig (github.com/barddoo)
158 points by barddoo 3 months ago | 111 comments
14.
Claude can sometimes prove it (galois.com)
219 points by lairv 3 months ago | 69 comments
15.
Vapor chamber tech keeps iPhone 17 Pro cool (ieee.org)
133 points by rbanffy 3 months ago | 297 comments
16.
Knitted Anatomy (knitted-anatomy.at)
116 points by blikstiender 3 months ago | 8 comments
17.
A revolution in English bell ringing (harpers.org)
99 points by ascertain 3 months ago | 35 comments
18.
Cormac McCarthy's tips on how to write a science paper (2019) [pdf] (gwern.net)
229 points by surprisetalk 3 months ago | 84 comments
19.
Evals in 2025: going beyond simple benchmarks to build models people can use (github.com/huggingface)
80 points by jxmorris12 3 months ago | 8 comments
20.
After Babel Fish: The promise of cheap translations at the speed of the Web (hedgehogreview.com)
70 points by miqkt 3 months ago | 16 comments
21.
Living microbial cement supercapacitors with reactivatable energy storage (cell.com)
88 points by PaulHoule 3 months ago | 44 comments
22.
Git: Introduce Rust and announce it will become mandatory in the build system (kernel.org)
335 points by WhyNotHugo 3 months ago | 413 comments
23.
Solving a wooden puzzle using Haskell (glocq.github.io)
69 points by Bogdanp 3 months ago | 29 comments
24.
Show HN: Math2Tex – Convert handwritten math and complex notes to LaTeX text
79 points by leoyixing 3 months ago | 16 comments
25.
Are touchscreens in cars dangerous? (economist.com)
238 points by Brajeshwar 3 months ago | 242 comments
26.
Show HN: FocusStream – Focused, distraction-free YouTube for learners (focusstream.media)
81 points by pariharAshwin 3 months ago | 46 comments
27.
Supporting Our AI Overlords: Redesigning Data Systems to Be Agent-First (arxiv.org)
67 points by derekhecksher 3 months ago | 20 comments
28.
High-performance read-through cache for object storage (github.com/s2-streamstore)
82 points by pranay01 3 months ago | 18 comments
29.
Starfront Observatories (starfront.space)
51 points by stefanpie 3 months ago | 15 comments
30.
If you are good at code review, you will be good at using AI agents (seangoedecke.com)
192 points by imasl42 3 months ago | 197 comments

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