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Start all of your commands with a comma

https://rhodesmill.org/brandon/2009/commands-with-comma/
80•theblazehen•2d ago•16 comments

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

https://openciv3.org/
648•klaussilveira•13h ago•189 comments

The Waymo World Model

https://waymo.com/blog/2026/02/the-waymo-world-model-a-new-frontier-for-autonomous-driving-simula...
941•xnx•19h ago•549 comments

What Is Ruliology?

https://writings.stephenwolfram.com/2026/01/what-is-ruliology/
37•helloplanets•4d ago•34 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
117•matheusalmeida•2d ago•28 comments

Unseen Footage of Atari Battlezone Arcade Cabinet Production

https://arcadeblogger.com/2026/02/02/unseen-footage-of-atari-battlezone-cabinet-production/
45•videotopia•4d ago•1 comments

Jeffrey Snover: "Welcome to the Room"

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

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

https://github.com/valdanylchuk/breezydemo
224•isitcontent•13h ago•25 comments

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

https://github.com/pydantic/monty
217•dmpetrov•14h ago•110 comments

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

https://vecti.com
326•vecti•15h ago•143 comments

Sheldon Brown's Bicycle Technical Info

https://www.sheldonbrown.com/
377•ostacke•19h ago•94 comments

Hackers (1995) Animated Experience

https://hackers-1995.vercel.app/
485•todsacerdoti•21h ago•238 comments

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

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

Vocal Guide – belt sing without killing yourself

https://jesperordrup.github.io/vocal-guide/
21•jesperordrup•3h ago•10 comments

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

https://eljojo.github.io/rememory/
281•eljojo•16h ago•167 comments

An Update on Heroku

https://www.heroku.com/blog/an-update-on-heroku/
407•lstoll•20h ago•274 comments

Dark Alley Mathematics

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

PC Floppy Copy Protection: Vault Prolok

https://martypc.blogspot.com/2024/09/pc-floppy-copy-protection-vault-prolok.html
58•kmm•5d ago•4 comments

Delimited Continuations vs. Lwt for Threads

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

How to effectively write quality code with AI

https://heidenstedt.org/posts/2026/how-to-effectively-write-quality-code-with-ai/
248•i5heu•16h ago•193 comments

Introducing the Developer Knowledge API and MCP Server

https://developers.googleblog.com/introducing-the-developer-knowledge-api-and-mcp-server/
56•gfortaine•11h ago•23 comments

Was Benoit Mandelbrot a hedgehog or a fox?

https://arxiv.org/abs/2602.01122
14•bikenaga•3d ago•3 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/
1062•cdrnsf•23h ago•439 comments

Why I Joined OpenAI

https://www.brendangregg.com/blog/2026-02-07/why-i-joined-openai.html
140•SerCe•9h ago•127 comments

Learning from context is harder than we thought

https://hy.tencent.com/research/100025?langVersion=en
180•limoce•3d ago•97 comments

Understanding Neural Network, Visually

https://visualrambling.space/neural-network/
286•surprisetalk•3d ago•39 comments

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

https://infisical.com/blog/devops-to-solutions-engineering
145•vmatsiiako•18h ago•67 comments

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

https://github.com/phreda4/r3
70•phreda4•13h ago•14 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...
29•gmays•8h ago•12 comments

FORTH? Really!?

https://rescrv.net/w/2026/02/06/associative
64•rescrv•21h ago•23 comments
Open in hackernews

Daniel Kleppner, Physicist Who Brought Atomic Clock Precision to GPS, Has Died

https://www.nytimes.com/2025/07/12/science/daniel-kleppner-dead.html
35•NaOH•6mo ago

Comments

NaOH•6mo ago
http://archive.today/n6xxF
toomuchtodo•6mo ago
https://en.wikipedia.org/wiki/Daniel_Kleppner

https://physics.mit.edu/faculty/daniel-kleppner/

kwoff•6mo ago
"He also helped to create an advanced physics course for M.I.T. freshmen with more than a rudimentary knowledge of the subject. He and Robert J. Kolenkow wrote a 2013 textbook for the course, “An Introduction to Mechanics.”"

I used Kleppner/Kolenkow's intro to mechanics (copyright 1973) in 1993 or so, not at MIT. Seems 2013 is referring to the 2nd edition: https://en.wikipedia.org/wiki/Daniel_Kleppner#Books Maybe the 1st edition was created for the "mechanics for masochists" MIT course.

mng2•6mo ago
I think you're right; I imagine the reporters wouldn't be familiar with physics pedagogy and just picked up the first date they saw in the google search.

I was too intimidated to take the honors series in undergrad but I sat in on one lecture and was totally lost in a room that seemed to be nodding along with the preacher, so to speak. From the syllabus I found out they used K&K, so I asked my father to buy it for me so I could study it at my leisure.

At the end of one of the first chapters there's a statement about how we can trivially extend the equations of mechanics to three dimensions. It blew my mind at the time, but after spending enough time studying physics, I am in agreement.

andbberger•6mo ago
"The first scientists to succeed, in 1995, were Eric Cornell, Wolfgang Ketterle and Carl Wieman at JILA (formerly known as the Joint Institute for Laboratory Astrophysics), a research institute in Colorado." incredible underhanded dig from the NYT (against the rest of the Boulder physics dept)
nobodyandproud•6mo ago
If you don’t mind, would you elaborate? What’s the subtext, etc.?

I’m quite dense when it comes to more refined insults.

denimnerd42•6mo ago
I think it’s just lazy reporting as JILA google search comes up with those exact words but the insult is that you would ordinarily just say The University of Colorado, or say JILA at The.. Leaving it out completely is quite a diss but probably not intentional.
andbberger•6mo ago
JILA is the golden child of the physics dept for reasons no one quite knows. Better facilities, higher stipends, separate events programming, same department!