US citizen charged after GrapheneOS phone wipes during airport search

Kimi-K3 Releases on HuggingFace 7/27

PGSimCity - How PostgreSQL Works

<a href="https:&#x2F;&#x2F;xcancel.com&#x2F;HedgieMarkets&#x2F;status&#x2F;2081534588485296565" rel="nofollow">https:&#x2F;&#x2F;xcancel.com&#x2F;HedgieMarkets&#x2F;status&#x2F;2081534588485296565</a>

AI companies are shredding rare books

We have a black hole at home — with actual relativistic physics, live in your browser.I&#x27;m Sasha (Alexander) Plavin, an astrophysicist at Harvard&#x27;s Black Hole Initiative studying quasars and black hole environments. I work with raytracing&#x2F;radiative transfer simulations professionally, and wanted to make one anyone can play with — so I built this app.Put the black hole onto your screen (any browser), or directly into your room with AR or VR (requires WebXR, for example Chrome on Android, or any VR headset). When looking around, pay attention to unintuitive relativistic effects: rays bending around the black hole, and special relativistic &quot;Doppler boosting&quot; changing brightness depending on the viewing angle — zoom out to see the fast jet where the latter effect is especially pronounced.
Faint markers show where other viewers are standing right now.Alternatively, put the black hole in front of your camera and watch it lens
your actual surroundings. Light winds around the hole, so you see both what&#x27;s in front of you and what&#x27;s behind you at once (when the device and browser allow both camera feeds). The closer to the black hole, the stronger the bending — and the longer the light-travel delay: wave at it and watch the changes propagate inward.
(unfortunately, WebXR restrictions make AR passthrough and the camera feed mutually exclusive)No signup, basic features work on every device, no data uploaded — the camera feed never leaves your device. Source code: <a href="https:&#x2F;&#x2F;github.com&#x2F;aplavin&#x2F;blackhole.plav.in" rel="nofollow">https:&#x2F;&#x2F;github.com&#x2F;aplavin&#x2F;blackhole.plav.in</a>.Enjoy having a black hole in your room, or use it for education&#x2F;outreach — any questions, feedback, or suggestions are welcome!

Show HN: Physically accurate black hole you can put in your room

Also, interview with creator: <a href="https:&#x2F;&#x2F;www.arraycast.com&#x2F;2025&#x2F;01&#x2F;04&#x2F;Decker.html" rel="nofollow">https:&#x2F;&#x2F;www.arraycast.com&#x2F;2025&#x2F;01&#x2F;04&#x2F;Decker.html</a>

Decker, a platform that builds on the legacy of Hypercard and classic macOS

How is the Bun Rewrite in Rust going?

Scriptc by Vercel: TypeScript-to-Native compiler, no JavaScript engine in binary

Introduction to Data-Oriented Design [pdf]

We have proof automation now

Magnolias Are So Old That They're Pollinated by Beetles, Not Bees

Should you wash your solar panels?

Removing React.js from the codebase and adapting Htmx for UI interactivity (2023)

HN

US citizen charged after GrapheneOS phone wipes during airport search

Kimi-K3 Releases on HuggingFace 7/27

PGSimCity - How PostgreSQL Works

AI companies are shredding rare books

Show HN: Physically accurate black hole you can put in your room

Decker, a platform that builds on the legacy of Hypercard and classic macOS

How is the Bun Rewrite in Rust going?

Scriptc by Vercel: TypeScript-to-Native compiler, no JavaScript engine in binary

Introduction to Data-Oriented Design [pdf]

We have proof automation now

Magnolias Are So Old That They're Pollinated by Beetles, Not Bees

Should you wash your solar panels?

Removing React.js from the codebase and adapting Htmx for UI interactivity (2023)

Libsm64: Mario 64 as a library for use in external game engines

VLC for Unity now supported on Linux

Modern email can be built from borrowed parts

Apple Will 'Watch Everything Burn' When the AI Bubble Bursts

Kimi-K3 Technical Report [pdf]

Building a Fast Lock-Free Queue in Modern C++ from Scratch

AI companies spend record sums on Washington lobbying