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Rock Tumbler Instructions
A detailed step-by-step guide for turning rough rocks into beautiful gems with a rotary rock tumbler.
New
The latest blog posts to take off on Hacker News. 1,197 posts.
Life, Learning & Writing
Any year
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Eye prosthesis is the first to restore sight lost to macular degeneration
In a Stanford Medicine-led clinical trial of a wireless retinal prosthesis, people with advanced macular degeneration regained enough vision to read books and subway signs.
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Why I'm teaching kids to hack computers
Cybersecurity challenges for iPhone, iPad, and Mac
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"Vibe code hell" has replaced "tutorial hell" in coding education
When I started thinking about the problems with coding education in 2019, "tutorial hell" was enemy number one. You'd know you were living in it if you:
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The Molecular Basis of Long Covid Brain Fog
Researchers use a specialized brain imaging technique to identify a potential biomarker and therapeutic target of Long COVID
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Kurt Got Got
The night we spent without control of our Twitter account.
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Mister Macintosh (2004)
Steve Jobs often came by Texaco Towers after dinner, to see what was new, and we'd usually show him whatever recent progress we made. Sometimes he'd be pissed off about something, but other times he'd be really excited about a new idea.
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Solveit – A course and platform for solving problems with code
You can now sign up for ‘How to Solve It with Code’, which is a course in how to solve problems (including coding, writing, sysadmin, and research) using fast short iterations, and also provides a platform that makes this approach easier and more effective.
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Inflammation now predicts heart disease more strongly than cholesterol
The American College of Cardiology now recommends everybody measure their hs-CRP.
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Why do we remember some life moments but not others?
BU study finds memories of mundane incidents can be strengthened when they get attached to a memory of an emotionally charged event
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High Altitude Living – 8,000 ft and above (2021)
Living at high altitude reduces risk of dying from heart disease: Low oxygen may spur genes to create blood vessels. Summary: Researchers have found that people living at higher altitudes have a lower chance of dying from heart disease and live longer. Jeanne and I live at 8,400 feet (2.560 meters)
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We can’t circumvent the work needed to train our minds
Debunking the myth that search engines and AI eliminate the need for memory. Building deep knowledge through active learning remains essential for critical thinking, despite promises of instant information access.
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Effective learning: Rules of formulating knowledge (1999)
This article will help you overcome one of the greatest difficulties you will face when trying to accelerate learning: formulating knowledge.
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Toothpaste made with keratin may protect and repair damaged teeth: study
Toothpaste made from your own hair may offer a sustainable and clinically effective way to protect and repair damaged teeth.
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Auf Wiedersehen, GitHub
I am stepping down as GitHub CEO to build my next adventure. GitHub is thriving and has a bright future ahead.
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Try and
Typically, try can be followed by three kinds of phrases: a noun phrase (1a), an infinitival verb phrase with to (1b), or a verb phrase with - ing (1c).
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Wired Called Our AirGradient Monitor 'Not Recommended' over a Broken Display
A detailed critique of WIRED's AirGradient ONE review, focusing on methodology, product understanding, and what trustworthy monitor reviews require.
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Our Farewell from Google Play
Our project started in 2016 with the goal of offering alternatives to apps with basic functionality that demanded – back then at install time – many permissions they did not need. From our humble beginnings with Privacy Friendly Torchlight, our apps have always been available in the Google Play Store. Our current…
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Maintaining weight loss
This article offers tips and practical advice to help people maintain their weight loss more effectively over time.
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Try the Mosquito Bucket of Death
The Mosquito Bucket of Death is a safe and environmentally sound way to rid your yard of mosquitoes. Here's how you make them.
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How I keep up with AI progress
Last Updated: 30th June 2025
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Recovering from AI addiction
Welcome to Internet and Technology Addicts Anonymous! We’re glad you’ve found us, and we hope our community can be as helpful to you as it has been for us. ITAA is a Twelve-Step fellowship of individuals who support each other in recovering from internet and technology addiction. This includes social media addiction…
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Matt Trout has died
"No one is finally dead until the ripples they cause in the world die away,"(Reaper Man, Terry Pratchett) It is with great sadness that we announce the passing of Shadowcat co-founder, Matt S. Trout. Matt started Shadowcat Systems with Mark Keating in 2005 after a few years of each of them working for other people's…
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Swedish Campground (2004)
We thought it was important for the user to be able to invoke every menu command directly from the keyboard, so we added a special key to the keyboard to invoke menu commands, just like our predecessor, Lisa. We called it the "Apple key"; when pressed in combination with another key, it selected the corresponding menu…
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I'm dialing back my LLM usage
From the Zed Blog: Alberto Fortin shares his honest reflection on the reality of using LLMs in production code and why he's taking a more measured approach.
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The Effect of Noise on Sleep
Using Apple Watch noise and sleep stages to quantify the effect of noise on sleep
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Biomolecular shifts occur in our 40s and 60s (2024)
Time marches on predictably, but biological aging is anything but constant, according to a new Stanford Medicine study.
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Managing time when time doesn't exist
The Ultimate Productivity Paradox