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Midjourney Medical

https://www.midjourney.com/medical/blogpost
320•ricochet11•2h ago•260 comments

Lore – Open source version control system designed for scalability

https://lore.org/
1054•regnerba•14h ago•559 comments

Local Qwen isn't a worse Opus, it's a different tool

https://blog.alexellis.io/local-ai-is-not-opus/
23•alphabettsy•1h ago•1 comments

US holds off blacklisting DeepSeek, more than 100 firms deemed security risks

https://www.reuters.com/world/china/us-holds-off-blacklisting-chinas-deepseek-more-than-100-firms...
408•giuliomagnifico•1d ago•453 comments

Taxonomy of the Occlupanida (parasitoids on bread bag tags)

https://www.horg.com/horg/?page_id=921
103•beatthatflight•5h ago•19 comments

Storied Colors – a catalogue of named colors

https://storiedcolors.com/
122•susiecambria•6h ago•28 comments

Clojure Hosted on Go

https://github.com/glojurelang/glojure
65•dnlo•5h ago•11 comments

Show HN: Spin Lab

https://srijanshukla.com/artifacts/spin-lab/
21•srijanshukla18•1d ago•9 comments

[x86] AI Compute Extensions (ACE) Specification

https://x86ecosystem.org/resource/ai-compute-extensions-ace-specification/
19•matt_d•2h ago•9 comments

Loreline – Tools for writing interactive fiction

https://loreline.app/en/
103•smartmic•8h ago•12 comments

Show HN: We built an 8-bit CPU as 2nd year EE students

https://github.com/c0rRupT9/STEPLA-1
50•CorRupT9•2d ago•11 comments

Launch HN: Adam (YC W25) – Open-Source AI CAD

https://github.com/Adam-CAD/CADAM
171•zachdive•12h ago•84 comments

How we run Firecracker VMs inside EC2 and start browsers in less than 1s

https://browser-use.com/posts/firecracker-browser-infra
232•gregpr07•1d ago•154 comments

How Madrid built its metro cheaply (2024)

https://worksinprogress.co/issue/how-madrid-built-its-metro-cheaply/
70•trymas•8h ago•28 comments

RFC 10008: The new HTTP Query Method

https://www.rfc-editor.org/info/rfc10008/
340•schappim•17h ago•147 comments

Biological evolution and information acquisition

https://www.construction-physics.com/p/biological-evolution-and-information
24•chmaynard•6d ago•2 comments

Show HN: An 8-bit live gamecast for baseball

https://ribbie.tv/watch
217•brownrout•12h ago•120 comments

Nim Conf 2026 (Online, Sat June 20)

https://conf.nim-lang.org/
4•pietroppeter•1h ago•1 comments

Tesco moving 40k server workloads off VMware amid Broadcom's abusive conduct

https://arstechnica.com/information-technology/2026/06/tesco-moving-40000-server-workloads-off-vm...
229•Bender•7h ago•122 comments

Why thinking out loud with someone beats thinking alone

https://www.thesignalist.io/s/the-dialogue-dividend/
206•kodesko•15h ago•95 comments

Volkswagen started blocking GrapheneOS users

https://discuss.grapheneos.org/d/35949-volkswagen-app?page=3
545•microtonal•13h ago•351 comments

Show HN: Inkwash, a watercolor sketching app and explanation

https://johnowhitaker.github.io/inkwash/about
187•Yenrabbit•4d ago•21 comments

U.S. science is in chaos

https://www.scientificamerican.com/article/americas-compact-between-science-and-politics-is-broken/
753•presspot•18h ago•911 comments

GLM-5.2 is the new leading open weights model on Artificial Analysis

https://artificialanalysis.ai/articles/glm-5-2-is-the-new-leading-open-weights-model-on-the-artif...
820•himata4113•19h ago•395 comments

The Return of Rigorous Full-System Timing Simulation

https://www.sigarch.org/the-return-of-rigorous-full-system-timing-simulation/
39•matt_d•1d ago•0 comments

MicroUI – A tiny, portable, immediate-mode UI library written in ANSI C

https://github.com/rxi/microui
211•peter_d_sherman•16h ago•73 comments

Image Compression

https://www.makingsoftware.com/chapters/image-compression
182•vinhnx•4d ago•28 comments

Show HN: Local personal data redaction for any AI tools

https://github.com/sophia486/pii-gui
6•unusual_typo•2h ago•0 comments

Want your images back? That'll be $5

https://www.lutr.dev/want-your-images-back-sure-that-ll-be-5-dollars
620•lutr•15h ago•257 comments

Trellis AI (YC W24) hiring a product lead to build agents for healthcare access

https://www.ycombinator.com/companies/trellis-ai/jobs/Cg94htp-product-lead
1•macklinkachorn•11h ago
Open in hackernews

Right-Truncatable Prime Counter

https://github.com/EbodShojaei/Right-Truncatable-Primes
9•rainmans•1y ago

Comments

throwawaymaths•1y ago
Curious about base 2. Obviously if you hit a 0 it's immediately not prime, but maybe adjust the rules so:

- you drill through as many 0's on the right.

- you finish on 1.

3, 5, 7, 11, 13, 15, 17 are all right truncatable, 19 is the first non-truncatable prime in this scheme.

nh23423fefe•1y ago
i dont think smaller radixes make the problem more interesting. the problem is interesting because base 10 has a large branching factor
throwawaymaths•1y ago
I think in the base2 reformulation I propose we do not know for certain if the list of numbers terminates, as all Fermat primes are in the set and we don't know if there are infinitely many Fermat primes.

For base-10 and the original rules the set is provably closed.

"Drilling through zeros" makes the branching unbounded.

jinwoo68•1y ago
There's a Project Euler problem for finding truncatable prime numbers, from both left and right: https://projecteuler.net/problem=37
thechao•1y ago
Just in case any else is wondering: there are only 83 right-truncatable primes (RTP) and that is it. There's two constraints that let you see this "immediately":

1. An RTP must start with {2,3,5,7,9}; and,

2. An RTP must end with {1,3,7,9}.

So, let's take the largest RTP (73939133) and try to "extend" it: there are only four possible extensions: 73939133[1], 73939133[3], 73939133[7], 73939133[9]. None of these are prime. This holds for the other 8-digit RTPs. Therefore, there is no extension to a 9-or-longer RTP. Thus, the list is exhaustive.