Journal of Physics D: Applied Physics

https://iopscience.iop.org/article/10.1088/0022-3727/42/4/045201
Beautiful work on streamer discharges. The authors were able to study in detail loop creation in discharge channels thanks to the innovative capturing technique. And it captured exactly the effect that I was looking for 😉
Why was it awesome? It was helpful! It was surprising!
From: Stanisław Żukowski, s.zukowski@uw.edu.pl