Particle Twister WebApp

Android, ATLAS, Board games, CERN, Coding, Computers and IT, Outreach, Physics, World Wide Web

It took some time, but now I finally managed to finish the next twist in Particle Twister.

My game idea that I designed and realised together with Katarina Anthony during my ‘more active’ time at the ATLAS Experiment at CERN finally got the first set of long-promised playing cards for additional fun and challenges in addition to the classic spinning wheel – all that in my brand new Progressive Web App (PWA).
You can use it online at and install it locally from https://particle-twister.mehlhase.info/.

Let me know if you have more ideas for cards, playing modes or features.
I still have a few more ideas, so stay tuned for updates …

Breakthrough Prize 2025

ATLAS, CERN, LHC, Physics

Today, I got a little my little share certificate for the Breakthrough Prize in Fundamental Physics that was awarded to the ATLAS Collaboration and other three large LHC collaborations.

As announced already back in April, the prize was awarded for detailed measurements of Higgs boson properties, confirming the symmetry-breaking mechanism of mass generation, the discovery of new strongly interacting particles, the study of rare processes and matter-antimatter asymmetry, and the exploration of nature at the shortest distances and most extreme conditions at CERN’s Large Hadron Collider.

I am happy to have been (and to tiny extent still am) part of this adventure.
Congratulations to all co-reciepients :)

timekeeper v3

Coding, Outreach

Ever had an issue with people not sticking to their allocated presentation time at one of your events? I certainly do …

After another round of testing at our MQV Annual Meeting in Eichstätt in October, I put together a new version of my little timekeeping tool available at timekeeper.mehlhase.info.

I usually have it running on a Raspberry Pi using Chromium in kiosk mode and use chroma keying on an ATEM Mini Pro to overlay the presentation source with the timer display, all controlled by a tiny five-keys ‘keyboard’. But it’s a Progressive Web App, so you can install it locally on your PC, tablet or phone and hook that up your video mixer via HDMI.

Continue reading timekeeper v3 →