Can someone please make a run of these, or something a bit more modest, and sell it please?

I have money I want you to take.

A fluid simulation pendant:
https://hackaday.com/2025/01/13/fluid-simulation-pendant-teaches-lessons-in-miniaturization/

#physics #watch #jewelry #maker #geek #LED #ARM #Cortex-M4 #wearable #demo #toy #blinkenlights #fluiddynamics #fluids #simulation #gear #tech #blog #video

At #38c3, we presented our #BlinkenCity research, which started as a fun art project idea, and ended up as a plausible European #blackout scenario.

https://www.youtube.com/watch?v=DAf-T3bFJFs

Details: https://positive.security/blog/blinkencity-38c3

TL;DR: Some European countries use unencrypted and unauthenticated #longwave radio to steer parts of their renewable power, enough to potentially cause a Europe-wide blackout.

The control signals can be sent with just a #Flipper Zero over short distance, or via self-built transmitters over a long distance (e.g. using a kite to lift an antenna wire).

The system is also used for street lamp control, allowing for a scaled-up “Project #Blinkenlights” art installation that transforms an entire city into a screen (for astronauts).

The company operating this system has threatened us with lawsuits and (now publicly) denies the risk.

BBSing with some tracker tunes tonight.

#introduction on the occasion of switching instances.
I'm Marcin, he/him, mostly #programming; #Go/#golang these days, earlier #Python, Javascript, C++, Perl, Java, to Pascal and Basic 30+ years ago. I burn through hobbies fast; photography and music stuck for longer, both in "I have no idea what I'm doing but this is fun" mode. Also #electronics and building stuff for festivals, from #blinkenlights to night clubs in Nowhere.