Posts from 2013 to 2020 moved to the archive

I just cleaned up my website and put a lot of old stuff from 2013 to 2020 into the archive. In addition, all my photography posts are now in their own section called Weekend Stories.

Update January 2026: During the COVID-19 period in 2020, I drafted a series of plasma and space physics posts together with accompanying Python code. When migrating this website to Jekyll and Markdown, I archived much of this material rather than converting it, as the texts were not yet in Markdown format and the code was still in an early and often buggy state. In January 2026, I revisited these posts and significantly expanded them. I cleaned up and corrected the accompanying code, which is now stable and fully functional. I decided to re-release the posts in an updated and technically consistent form, in their original chronological context. The accompanying Python codes are now hosted in a dedicated GitHub repositoryꜛ. Enjoy reading and experimenting!