Ruben Flame Tube (a.k.a Wave Flame Tube)
Chladni Plate (method of creating Chladni figures)
A good mix of liquid nitrogen and boiling water :)
Additionally, I attempted to publish Observare Scientia, a Turkish academic journal that disseminates news about science around the world. Due to regulatory burdens, we were unable to proceed after preparing the first issue.
Since I essentially began designing for societal needs like posters, social media inserts, roll-ups, t-shirts, etc., the Physics Society has played a significant role in my design career. I have included some of my early design samples. I also revamped the society's emblem.