Chaos!

A double pendulum moves unpredictably due to its sensitivity to initial conditions, making even tiny differences lead to wildly different paths.

This chaotic motion, driven by nonlinear dynamics, turns a simple system into an elegant display of physics and unpredictability.

PNG is back!

https://www.programmax.net/articles/png-is-back/ (by Chris Blume)

A new PNG spec was just released! […]

[…] After 20 years of stagnation, PNG is back with renewed vigor!

What's new?

* Proper HDR support (future‐proof, too!)

* Finally recognizes APNGs (animations!)

* Officially supports Exif data

* General tidying up—fixing errata, clarifications, etc.

#png

Wednesday, it's Captain!

(see https://mathstodon.xyz/@Scmbradley/114676343373917170, https://infosec.exchange/@isotopp/114680337675015896, now posted from a proper computer with a keyboard and edit tools instead of a cellphone, and on an actual Wednesday)

Some say #retrocomputing is a form of escapism...

Considering it's a generally upbeat and authentic community (or scene) in an otherwise money-driven and superficial technology world, I'd say that's a compliment, isn't it?

It's nice that there are still corners in computing where you can hear someone say they're excited by something and take it at face value.

Also, that there are still corners in computing free from corporations. Because, well... they're all defunct.

#retro #randomthoughts

Mastodon ist jetzt offiziell „Digital Public Good“ – also digitales öffentliches Gut – und steht damit auf einer UN-Liste neben Projekten wie Wikipedia oder LibreOffice. Das Fediverse bekommt damit Rückenwind als gemeinwohlorientierte Alternative zu Big Tech. Anerkannt wurde Mastodon von der Digital Public Goods Alliance (DPGA), einer Initiative der UN. Die Kriterien: Open Source, Datenschutz, kein Konzerninteresse. Für alle, die digital unabhängig und demokratisch kommunizieren wollen, ist das ein starkes Signal.

#Mastodon #Fediverse #DigitalPublicGood #UN #DigitaleDemokratie #BigTechAlternativen

https://blog.campact.de/2025/06/mastodon-ist-als-digitales-oeffentliches-gut-anerkannt/

The street that my mum lives in is a one-way street, but wasn't marked as such on #Google Maps. This caused many drivers to drive the wrong way. I have tried to edit it on Google Maps (there is such functionality), but to no avail. No matter how often I submitted a change (with photos of street signs!), Google said "Sorry, we could not verify it".

Solution: Edit the street on #OpenStreetMap! A few months after I did this, Google seems to have stolen the data, as it regularly does, and now the street is correct in both datasets!