fp.

Show HN: Agent Citizen – Your AI agents are sitting around doing nothing

https://agent-citizen.vercel.app

1•daltonlcarr•1m ago•0 comments

Bosses say AI boosts productivity – workers say they're drowning in 'workslop'

https://www.theguardian.com/technology/2026/apr/14/ai-productivity-workplace-errors

1•pseudolus•4m ago•0 comments

Researchers discover record-setting heat-conducting material

https://www.anl.gov/article/researchers-discover-recordsetting-heatconducting-material

1•gmays•6m ago•0 comments

Ask HN: Any services like NotebookLM that can convert text into videos?

1•haebom•8m ago•0 comments

Police officer uses Flock database to track mistress

https://ktla.com/news/orange-county/former-orange-county-officer-pleaded-guilty-to-using-police-d...

2•hentrep•12m ago•0 comments

Show HN: Lumon, browser agents as interactive sprites

https://lumon-live.netlify.app

1•lesprgm•13m ago•0 comments

The race to understand the mysterious world of Africa's fungi

https://www.theguardian.com/environment/2026/apr/14/african-scientists-fungal-conservation-moveme...

1•a_w•14m ago•0 comments

The Great Software Meltdown

https://www.danmartell.com/the-great-software-meltdown/

1•wfme•15m ago•0 comments

Thomas Riedel Acquires Arri

https://theasc.com/news/thomas-riedel-acquires-arri

1•coolandsmartrr•16m ago•0 comments

Show HN: Playra 2026 link

https://playra-app.vercel.app

1•COdefinder•18m ago•0 comments

Show HN: Make sure your OpenClaw isn't doing things it's not supposed to

https://claw.armoriq.ai/

1•vaibhavb007•20m ago•0 comments

Zperiod: Interactive Periodic Table with 118 elements and 3D atom models

https://zperiod.app/

1•itherseed•20m ago•0 comments

Bunk beds for economy passengers take off on Air New Zealand's new planes

https://www.cnn.com/2026/04/14/travel/air-new-zealand-bunk-beds

2•1659447091•22m ago•1 comments

Intro to Synthesis

https://signalfunctionset.com/projects/intro-to-synthesis/

1•stuart78•25m ago•0 comments

Aethon: A reference-based instantiation primitive for stateful AI agents

https://arxiv.org/abs/2604.12129

1•swanandr•25m ago•0 comments

Ask HN:Multi-microservices e2e tests solution

1•tonyxia•28m ago•0 comments

X.org Security Advisory: multiple security issues X.Org X server and Xwayland

https://lists.x.org/archives/xorg-devel/2026-April/059446.html

1•voxadam•29m ago•0 comments

The Origin of AI's 'Reasoning' Abilities

https://www.theatlantic.com/technology/2026/04/4chan-ai-dungeon-thinking-reasoning/686794/

1•a_w•30m ago•0 comments

Traffic fatalities in US increased 15% on same days big albums were released

https://www.nytimes.com/2026/04/10/well/car-crashes-streaming-friday-harvard.html

2•bookofjoe•36m ago•1 comments

Iran's nuke confession blows reasons for America's war wide open

https://www.dailymail.co.uk/sciencetech/article-15732615/iran-nuclear-bomb-confession-ali-motahar...

2•Bender•45m ago•4 comments

Show HN: Idea File for LLM Cycling Coach

https://gist.github.com/leourbina/4db27d9a0a86b9e1551bf9d4b3fd6dad

1•leourbina•46m ago•0 comments

An open source template for building cloud agents

https://github.com/vercel-labs/open-agents

1•obilgic•48m ago•0 comments

Open Agents by Vercel

https://open-agents.dev/

1•obilgic•48m ago•0 comments

Grok Imagine 2.0 – AI-Powered Image Generation

https://grokimagine2.io

3•danielmateo773•51m ago•0 comments

Voxtral TTS – High-Quality Text-to-Speech API

https://voxtral-tts.com

1•danielmateo773•52m ago•0 comments

I built a local real estate site for Ottawa with neighborhood market data

https://maisonpropertygroup.ca

1•thugdrama•56m ago•0 comments

Scandinavian Governance: A Story of Trust and Shared Power

https://polycentricleadership.com/casestudies/scandinavian-governance-a-story-of-trust-and-shared...

1•thunderbong•56m ago•0 comments

The Accursèd Alphabetical Clock

https://boat.horse/clock/index.html

4•ohjeez•1h ago•1 comments

Not Even Noise-Cancelling Headphones Can Block This Bicycle Bell

https://www.carscoops.com/2026/04/skoda-duobell-anc/

1•ohjeez•1h ago•1 comments

Ask HN: What's with the Wargames-like UX lately?

3•beatthatflight•1h ago•3 comments

Open in hackernews

Gauss' Secret Way to Calculate π Faster [video]

https://www.youtube.com/watch?v=7qiDDhIYx48

1•peter_d_sherman•1h ago

Comments

peter_d_sherman•1h ago

IMHO: Of all of the videos showing Pi's relationship with the Arithmetic-Geometric Mean (AGM), this is the best one.

Gauss–Legendre algorithm:

https://en.wikipedia.org/wiki/Gauss%E2%80%93Legendre_algorit...

Arithmetic–Geometric Mean (AGM)

https://en.wikipedia.org/wiki/Arithmetic%E2%80%93geometric_m...

Chudnovsky algorithm

https://en.wikipedia.org/wiki/Chudnovsky_algorithm

Landen's transformation

https://en.wikipedia.org/wiki/Landen%27s_transformation

Binary splitting:

https://en.wikipedia.org/wiki/Binary_splitting