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Top Stories from Hacker News

Learn how chips are made with this Rollercoaster Tycoon-inspired animation

A guided isometric tour of a chip factory. A cart carries one wafer from a pile of sand to a finished chip, stopping at all twenty stages along the way.

8 points

0 comments

discussion source

The Simple Elegance of the Integrated Timing Belt Loopback Fastener

I’ve recently been working on a mechatronics project that involves constructing an X-Y cartesian motion system. I opted to use stepper motors to drive each axis, and timing belts and pulleys for translating the rotational torque of the steppers into linear motion. The timing belts need to be anchored to the component that is being actuated, which in this case is the carriage on the linear rails. Though matching toothed clamps exist, it is common, particularly in DIY projects, for timing belts to be fastened using zip ties or custom clips.

56 points

11 comments

discussion source

Building progressively enhanced forms using Htmx

Software engineer, artist and musician

17 points

2 comments

discussion source

Discovery Loop

Discovery Loop is building AI systems that automate the experimental loops of science and engineering. Continuous Exploration.

879 points

557 comments

discussion source

Almost no skill required to cook a steak

Why AI can make software development faster without replacing the judgment and understanding needed to build consistently good software.

133 points

166 comments

discussion source

Mario Meets Pareto

Discover how to find the best Mario Kart 8 build using the Pareto frontier method. This interactive guide explores multi-objective optimization of speed, acceleration, and other key stats to help you beat your friends on the race track.

686 points

134 comments

discussion source

Pareto Front

188 points

81 comments

discussion source

Humans missed 1 in 3 threats approving AI agent commands across 40k game runs

Results from AI agent permission game: which attacks beat human reviewers, and which safe commands got blocked instead.

198 points

161 comments

discussion source

Poles of Inaccessibility in the San Gabriel Mountains

22 points

14 comments

discussion source

How to Make a Nintendo 64 Game in 2026

393 points

165 comments

discussion source

Unearthing my 1996 windowed OS in machine code for Am29000 homebrew computer

120 points

30 comments

discussion source

Launch HN: ProvenMetal (YC S26) delivers circuit boards in days instead of weeks

ProvenMetal runs the entire PCB build in the US for drone and defense teams. Fast turns, made in America. Ordering now open.

113 points

82 comments

discussion source

My phone detects going on a run as "someone snatching my phone and running off"

As of a recent update, my phone has started detecting me going on a run as "someone snatching my phone and running off". This insta-locks the screen and kicks me out of the app I use to pace my runs. gaaaaah

23 points

31 comments

discussion source

Crime Pays but Botany Doesn't

565 points

176 comments

discussion source

Federal Communications Commission scraps limit on broadcast TV ownership

The Federal Communications Commission voted to eliminate a cap on the share of U.S. television households a single company can reach.

24 points

15 comments

discussion source

Dress made of living mycelium can renew and repair itself

Researchers in China have created a textile from living mycelium that is self-cleaning, near self-repairing and can fend off UV rays.

37 points

23 comments

discussion source

Zapscape (CVE-2026-64561)

Contribute to V4bel/Zapscape development by creating an account on GitHub.

33 points

5 comments

discussion source

Improving GPT-5.6 Sol in ChatGPT—and expanding access for free users

ChatGPT introduces improved GPT-5.6 Sol with better accuracy and consistency, plus expanded access for free users and unlimited everyday chats with GPT-5.6 Luna.

11 points

0 comments

discussion source

Show HN: The Channels SDK – Bring Any Agent to Any Channel (Slack, MS Teams)

The open-source SDK for bringing any agent into any chat platform: Slack, Microsoft Teams, Discord, Telegram - with native, Interactive UI. - CopilotKit/channels-sdk

54 points

17 comments

discussion source

Changes at Google DeepMind: Demis Hassabis from CEO to Chair, Jeff Dean departs

Today, Google and Alphabet CEO Sundar Pichai shared some changes with Google DeepMind teams.

800 points

855 comments

discussion source

On this day

A suicide bomb attack kills at least 15 people at a mosque in the Saudi city of Abha.

2015

Top Stories from Hacker News

Learn how chips are made with this Rollercoaster Tycoon-inspired animation

The Simple Elegance of the Integrated Timing Belt Loopback Fastener

Building progressively enhanced forms using Htmx

Discovery Loop

Almost no skill required to cook a steak

Mario Meets Pareto

Pareto Front

Humans missed 1 in 3 threats approving AI agent commands across 40k game runs

Poles of Inaccessibility in the San Gabriel Mountains

How to Make a Nintendo 64 Game in 2026

Unearthing my 1996 windowed OS in machine code for Am29000 homebrew computer

Launch HN: ProvenMetal (YC S26) delivers circuit boards in days instead of weeks

My phone detects going on a run as "someone snatching my phone and running off"

Crime Pays but Botany Doesn't

Federal Communications Commission scraps limit on broadcast TV ownership

Dress made of living mycelium can renew and repair itself

Zapscape (CVE-2026-64561)

Improving GPT-5.6 Sol in ChatGPT—and expanding access for free users

Show HN: The Channels SDK – Bring Any Agent to Any Channel (Slack, MS Teams)

Changes at Google DeepMind: Demis Hassabis from CEO to Chair, Jeff Dean departs

On this day

A suicide bomb attack kills at least 15 people at a mosque in the Saudi city of Abha.

NASA's Curiosity rover lands on the surface of Mars.

War in Afghanistan: A United States military helicopter is shot down, killing 30 American special forces members and a working dog, seven Afghan soldiers, and one Afghan civilian. It was the deadliest single event for the United States in the War in Afghanistan.

Flash floods across a large part of Jammu and Kashmir, India, damages 71 towns and kills at least 255 people.

A military junta led by Mohamed Ould Abdel Aziz stages a coup d'état in Mauritania, overthrowing president Sidi Ould Cheikh Abdallahi.

Erwadi fire incident: Twenty-eight mentally ill persons tied to a chain are burnt to death at a faith based institution at Erwadi, Tamil Nadu.

Korean Air Flight 801 crashed at Nimitz Hill, Guam, killing 229 of the 254 people on board.

NASA announces that the ALH 84001 meteorite, thought to originate from Mars, contains evidence of primitive life-forms.

Tim Berners-Lee releases files describing his idea for the World Wide Web. WWW makes its first appearance as a publicly available service on the Internet.

Takako Doi, chair of the Social Democratic Party, becomes Japan's first female speaker of the House of Representatives.

Gulf War: The United Nations Security Council orders a global trade embargo against Iraq in response to Iraq's invasion of Kuwait.

A low-pressure system that redeveloped off the New South Wales coast dumps a record 328 millimeters (13 inches) of rain in a day on Sydney, New South Wales, Australia.

US President Lyndon B. Johnson signs the Voting Rights Act of 1965 into law.

Jamaica becomes independent from the United Kingdom.

Cuban Revolution: Cuba nationalizes American and foreign-owned property in the nation.

Law of Permanent Defense of Democracy, outlawing the Communist Party of Chile and banning 26,650 persons from the electoral lists, is repealed in Chile.

After going bankrupt in 1955, the American broadcaster DuMont Television Network makes its final broadcast, a boxing match from St. Nicholas Arena in New York in the Boxing from St. Nicholas Arena series.

World War II: Hiroshima, Japan is devastated when the atomic bomb "Little Boy" is dropped by the United States B-29 Enola Gay. Around 70,000 people are killed instantly, and some tens of thousands die in subsequent years from burns and radiation poisoning.

Queen Wilhelmina of the Netherlands becomes the first reigning queen to address a joint session of the United States Congress.

Estonia is annexed by the Soviet Union.

Gertrude Ederle becomes the first woman to swim across the English Channel.

First public screening using the Vitaphone process

World War I: Battle of Mărășești between the Romanian and German armies begins.

World War I: Battle of Sari Bair: The Allies mount a diversionary attack timed to coincide with a major Allied landing of reinforcements at Suvla Bay.

World War I: U-boat campaign: Two days after the United Kingdom had declared war on Germany over the German invasion of Belgium, ten German U-boats leave their base in Heligoland to attack Royal Navy warships in the North Sea.

World War I: Serbia declares war on Germany; Austria declares war on Russia.

Kiowa land in Oklahoma is opened for white settlement, effectively dissolving the contiguous reservation.

At Auburn Prison in New York, murderer William Kemmler becomes the first person to be executed by electric chair.

Franco-Prussian War: The Battle of Spicheren is fought, resulting in a German victory.

Franco-Prussian War: The Battle of Wörth results in a decisive German victory.

American Civil War: The Confederate ironclad CSS Arkansas is scuttled on the Mississippi River after suffering catastrophic engine failure near Baton Rouge, Louisiana.

Britain imposes the Lagos Treaty of Cession to suppress slavery in what is now Nigeria.

The Bolivian Declaration of Independence is proclaimed.

Peruvian War of Independence: Patriot forces led by Simón Bolívar defeat the Spanish Royalist army in the Battle of Junín.

Norwich University is founded in Vermont as the first private military school in the United States.

Francis II, Holy Roman Emperor, declares the moribund empire to be dissolved, although he retains power in the Austrian Empire.

Sixty proof sheets of the Constitution of the United States are delivered to the Constitutional Convention in Philadelphia, Pennsylvania.

American Revolutionary War: The bloody Battle of Oriskany prevents American relief of the Siege of Fort Stanwix.

The Treaty of The Hague is signed by Portugal and the Dutch Republic.

Toyotomi Hideyoshi is officially appointed kampaku (Imperial Regent).

Bogotá, Colombia, is founded by Gonzalo Jiménez de Quesada.

The Republic of Pisa is defeated in the Battle of Meloria by the Republic of Genoa, thus losing its naval dominance in the Mediterranean.

Antipope Constantine II is deposed and blinded by the Lombard troops of primicerius Christopher.

The Umayyad forces suffer a decisive defeat against the pro-Alid forces under Ibrahim ibn al-Ashtar in the battle of Khazir.

Pope Sixtus II is arrested while celebrating mass and then beheaded with several of his deacons.

On this day

A suicide bomb attack kills at least 15 people at a mosque in the Saudi city of Abha.

NASA's Curiosity rover lands on the surface of Mars.

War in Afghanistan: A United States military helicopter is shot down, killing 30 American special forces members and a working dog, seven Afghan soldiers, and one Afghan civilian. It was the deadliest single event for the United States in the War in Afghanistan.

Flash floods across a large part of Jammu and Kashmir, India, damages 71 towns and kills at least 255 people.

A military junta led by Mohamed Ould Abdel Aziz stages a coup d'état in Mauritania, overthrowing president Sidi Ould Cheikh Abdallahi.

Erwadi fire incident: Twenty-eight mentally ill persons tied to a chain are burnt to death at a faith based institution at Erwadi, Tamil Nadu.

Korean Air Flight 801 crashed at Nimitz Hill, Guam, killing 229 of the 254 people on board.

NASA announces that the ALH 84001 meteorite, thought to originate from Mars, contains evidence of primitive life-forms.

Tim Berners-Lee releases files describing his idea for the World Wide Web. WWW makes its first appearance as a publicly available service on the Internet.

Takako Doi, chair of the Social Democratic Party, becomes Japan's first female speaker of the House of Representatives.

Gulf War: The United Nations Security Council orders a global trade embargo against Iraq in response to Iraq's invasion of Kuwait.

A low-pressure system that redeveloped off the New South Wales coast dumps a record 328 millimeters (13 inches) of rain in a day on Sydney, New South Wales, Australia.