news newest ask show jobs

Made with ♥ by @iamnishanth

Open Source @Github

fp.

Bijou64: A variable-length integer encoding

https://www.inkandswitch.com/tangents/bijou64/

64•justinweiss•1h ago•24 comments

The Dead Economy Theory

https://www.owenmcgrann.com/p/the-dead-economy-theory

23•WillDaSilva•33m ago•8 comments

I Am Retiring from Tech to Live Offline

https://openpath.quest/2026/i-am-retiring-from-tech-to-live-offline/

326•PinkG•1h ago•214 comments

Tulip mania: when a single flower was worth more than a house (2025)

https://dutchreview.com/culture/tulip-mania-netherlands/

100•dotcoma•4h ago•89 comments

High Density Living, 2000 Years Ago: Inside the Roman Apartment Building

https://commonedge.org/high-density-living-2000-years-ago-inside-the-roman-apartment-building/

60•surprisetalk•3h ago•14 comments

The UK Government's Low Value Purchase System Is a Waste of Time

https://shkspr.mobi/blog/2026/05/the-uk-governments-low-value-purchase-system-is-a-waste-of-time/

107•ColinWright•4h ago•58 comments

GTA 6 Developers Unionize

https://rockstarintel.com/gta-6-developers-announce-rockstar-games-union/

51•AndrewKemendo•46m ago•27 comments

Danish Pension Blacklists SpaceX over 'Catastrophic Governance'

https://www.bloomberg.com/news/articles/2026-05-29/danish-pension-fund-blacklists-spacex-citing-g...

47•leopoldj•1h ago•17 comments

Blue Origin's New Glenn blows up during static fire test

https://twitter.com/nasaspaceflight/status/2060164928472854821

404•enraged_camel•15h ago•399 comments

Headway Therapy Patients Forced to Scan Their Faces to Keep Getting Care

https://www.404media.co/headway-therapy-facial-scan-biometric-data-identity-verification/

47•pavel_lishin•2h ago•12 comments

Real-time LLM Inference on Standard GPUs: 3k tokens/s per request

https://blog.kog.ai/real-time-llm-inference-on-standard-gpus-3-000-tokens-s-per-request/

127•NicoConstant•6h ago•65 comments

Claude Code – Everything You Can Configure That the Docs Don't Tell You

https://buildingbetter.tech/p/i-read-the-claude-code-source-code

289•ankitg12•14h ago•55 comments

Local Git Remotes

https://cblgh.org/posts/local-git-remotes/

58•surprisetalk•3h ago•42 comments

Cedana (YC S23) Is Hiring

https://www.ycombinator.com/companies/cedana/jobs/d1vYocG-forward-deployed-engineer-ai-hpc

1•neelm•4h ago

The Secret Garden of Rock-Paper-Scissors

https://theshamblog.com/the-secret-garden-of-rock-paper-scissors/

9•scottshambaugh•2h ago•0 comments

Orchestrating AI code review at scale

https://blog.cloudflare.com/ai-code-review/

91•pramodbiligiri•3d ago•35 comments

Claude Opus 4.8

https://www.anthropic.com/news/claude-opus-4-8

1680•craigmart•23h ago•1305 comments

Bricks and Minifigs Stole a Man's $200k Lego Collection

https://mybricklog.com/blog/bricks-minifigs-corporate-stole-old-mans-200000-lego-collection

1209•philips•20h ago•530 comments

Let's compile Quake like it's 1997

https://fabiensanglard.net/compile_like_1997/

139•goranmoomin•13h ago•47 comments

An Obsessive Focus on UX: Pilot's Pressure-Regulating Kire-Na Highlighter

https://www.core77.com/posts/143832/An-Obsessive-Focus-on-UX-Pilots-Pressure-Regulating-Kire-Na-H...

40•surprisetalk•3d ago•10 comments

Is AI causing a repeat of Front end's Lost Decade?

https://mastrojs.github.io/blog/2026-05-23-is-AI-causing-a-repeat-of-frontends-lost-decade/

171•xyzal•5h ago•170 comments

Wterm – Terminal Emulator for the Web

https://wterm.dev/

36•m3h•7h ago•8 comments

Social media bans for teenagers lack evidence and pose risks, scientists say

https://www.frontiersin.org/news/2026/05/29/we-cannot-ban-our-way-out-of-a-youth-mental-health-cr...

17•giuliomagnifico•4h ago•16 comments

Even (very) noisy LLM evaluators are useful for improving AI agents

https://www.tensorzero.com/blog/even-very-noisy-llm-evaluators-are-useful-for-improving-ai-agents/

15•GabrielBianconi•2d ago•2 comments

Volkswagen blocks Home Assistant by requiring client assertion

https://github.com/robinostlund/homeassistant-volkswagencarnet/issues/967

319•Kwastie•10h ago•162 comments

We should be more tired than the model

https://vickiboykis.com/2026/05/28/we-should-be-more-tired-than-the-model/

79•tosh•4h ago•76 comments

Show HN: Context-aware Japanese furigana using Sudachi and ModernBERT

https://www.ezfurigana.com/

15•epitrochoid413•3h ago•13 comments

Italians and Dutch share the same gestural instinct for teaching

https://www.mpi.nl/news/italians-and-dutch-share-same-gestural-instinct-teaching

103•vi_sextus_vi•13h ago•50 comments

Ten Basic Clouds

https://www.noaa.gov/jetstream/clouds/ten-basic-clouds

179•nopg•4d ago•45 comments

HeidiSQL – Lightweight MariaDB, MySQL, SQL Server, PostgreSQL and SQLite Manager

https://github.com/HeidiSQL/HeidiSQL

86•peter_d_sherman•13h ago•31 comments

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.