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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
143•theblazehen•2d ago•42 comments

OpenCiv3: Open-source, cross-platform reimagining of Civilization III

https://openciv3.org/
668•klaussilveira•14h ago•202 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
949•xnx•19h ago•551 comments

How we made geo joins 400× faster with H3 indexes

https://floedb.ai/blog/how-we-made-geo-joins-400-faster-with-h3-indexes
122•matheusalmeida•2d ago•33 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
53•videotopia•4d ago•2 comments

Show HN: Look Ma, No Linux: Shell, App Installer, Vi, Cc on ESP32-S3 / BreezyBox

https://github.com/valdanylchuk/breezydemo
229•isitcontent•14h ago•25 comments

Jeffrey Snover: "Welcome to the Room"

https://www.jsnover.com/blog/2026/02/01/welcome-to-the-room/
16•kaonwarb•3d ago•19 comments

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
28•jesperordrup•4h ago•16 comments

Monty: A minimal, secure Python interpreter written in Rust for use by AI

https://github.com/pydantic/monty
223•dmpetrov•14h ago•117 comments

Show HN: I spent 4 years building a UI design tool with only the features I use

https://vecti.com
330•vecti•16h ago•143 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
494•todsacerdoti•22h ago•243 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
381•ostacke•20h ago•95 comments

Microsoft open-sources LiteBox, a security-focused library OS

https://github.com/microsoft/litebox
359•aktau•20h ago•181 comments

Show HN: If you lose your memory, how to regain access to your computer?

https://eljojo.github.io/rememory/
288•eljojo•17h ago•169 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
412•lstoll•20h ago•278 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
19•bikenaga•3d ago•4 comments

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
63•kmm•5d ago•6 comments

Dark Alley Mathematics

https://blog.szczepan.org/blog/three-points/
90•quibono•4d ago•21 comments

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
256•i5heu•17h ago•196 comments

Delimited Continuations vs. Lwt for Threads

https://mirageos.org/blog/delimcc-vs-lwt
32•romes•4d ago•3 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
44•helloplanets•4d ago•42 comments

Where did all the starships go?

https://www.datawrapper.de/blog/science-fiction-decline
12•speckx•3d ago•5 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
59•gfortaine•12h ago•25 comments

Female Asian Elephant Calf Born at the Smithsonian National Zoo

https://www.si.edu/newsdesk/releases/female-asian-elephant-calf-born-smithsonians-national-zoo-an...
33•gmays•9h ago•12 comments

I now assume that all ads on Apple news are scams

https://kirkville.com/i-now-assume-that-all-ads-on-apple-news-are-scams/
1066•cdrnsf•23h ago•446 comments

I spent 5 years in DevOps – Solutions engineering gave me what I was missing

https://infisical.com/blog/devops-to-solutions-engineering
150•vmatsiiako•19h ago•67 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
288•surprisetalk•3d ago•43 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
149•SerCe•10h ago•138 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
183•limoce•3d ago•98 comments

Show HN: R3forth, a ColorForth-inspired language with a tiny VM

https://github.com/phreda4/r3
73•phreda4•13h ago•14 comments
Open in hackernews

Behind the ballistics of the 'explosive' squirting cucumber

https://phys.org/news/2025-07-ballistics-explosive-squirting-cucumber.html
54•PaulHoule•6mo ago

Comments

lolc•6mo ago
Great capture and it's funny to read the "possible applications" section when you know humans just love watching slow motion exploding things.
firesteelrain•6mo ago
Wild how evolution landed on 53° as the ideal launch angle. Nature’s own ballistics optimization.
fsckboy•6mo ago
53° is very close to a 3-4-5 triangle
firesteelrain•6mo ago
Evolution meets Euclid.
abeppu•6mo ago
> The experiments also revealed that the fruit stem straightens up during ripening, creating an average 53° angle that is close to the theoretical perfect angle of 50° that would maximize shooting distance.

I recall from school that distance is maximized for a ballistic path when the angle is 45°. See e.g. https://www.scientificamerican.com/article/football-projecti...

Did someone get confused while writing this article or is there some reason why the optimal angle would be different in this situation?

crubier•6mo ago
45deg is optimal if you neglect air drag on the projectile
Sharlin•6mo ago
> speeds up to 29 miles per hour and reach shooting distances up to 12 meters.

My brain hurts.

But I learned a new word: mucilaginous.

temp0826•6mo ago
This reminded me of the South American "dynamite tree" (Hura crepitans, https://en.wikipedia.org/wiki/Hura_crepitans ), which wikipedia says launches seeds from its exploding fruits at 160 mph, up to 100 ft away! A pretty menacing tree actually, its trunk covered in huge thorns and it has a poisonous sap.
accrual•6mo ago
Wow. We really have it good considering most trees don't fire projectiles at us.
x______________•6mo ago
Some time ago, I grew clover in flower pots at the office and noticed one day that there were seeds stuck on the window pane.

Further observation revealed that clover flowers used a similar yet opposite mechanism to squirting cucumbers featured in this article. The seed pods would form and then dry out, and the dryness would form a tightness in the seed pod that upon touch(or given enough time and dryness), would burst out propelling its seeds far away from the plant.

While some seeds would stick to the window, I can only assume now that this is the seed itself clinging to other surfaced as another propagation method that I've not fully understood.

Comparing this experience to the article and the squirting cucumbers, I can imagine that the liquid used in this mechanism would only be useful to heavier seeds, as the added weight would hinder any 'dry' spread process.

This is only my immediate thoughts but it seems that evolution and time have figured out this concept long ago! Cool stuff!

(edit: typo)

sMarsIntruder•6mo ago
I know it’s not the point, but:

> 29 miles per hour and reach shooting distances up to 12 meters

Clash between Metric and Imperial is still alive.