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2026 Summer Seasonal Anime Preview

I like to watch seasonal anime, and posting about it. Instead of just posting a giant Mastodon thread, I’m going to try something new this season: Writing an aniblogger season preview post about the shows that I decided to give a try! Lets start with the highly anticipated show …

Transmitting data via ultrasound without any special equipment

There are secret messages flying all around you all the time, being transmitted via, most of the time, electromagnetic waves going from antenna to antenna. ELOs “Secret Messages” is a song about posting conspiracy theories via WiFi. But what if you need to get a few bytes from device A to device B (one of the hard problems in computer science!) and you don’t feel like making sure they’re both…

Silly Mastodon apps

Just like used to be the case with Twitter, there are a lot of very nice third-party apps for Mastodon . I’m not neccesarily very good at making those, or at least do not usually feel like writing good software for fun most days, but I do maintain Mastodon.py …

Mastodon.py in the browser!

Today, I learned that PyScript exists. PyScript is, at its core, some rigging to make Pyodide , a WebAssembly port of the CPython Python interpreter, real easy to use as a proper client-side web scripting tool. Just include one <script> tag and now <script type="py"> is a valid thing you can have in your website. Put Python code inside of it, interact with the DOM , the works. I think that rules…

Measuring power network frequency using junk you have in your closet

Over the weekend starting on Saturday, the 8th of February 2025, the Baltic states’ electricity grid is switching from being synchronized with the Russian electric grid to being synchronized with the continental European electrical grid . This involves first disconnecting from the Russian grid, then operating a while as an island system, regulating the frequency alone and doing various tests, and…

Perry Rhodan, Part 1: Die Dritte Macht

I like Perry Rhodan a lot. If you’re not German, and even if you are German, you might not have heard of Perry Rhodan, so here is a quick high level summary. Perry Rhodan is a German pulp magazine sci-fi series. It has, somehow, been in continous publication since 1961 . It is still very much published as pulp issues - at time of writing, we’re on issue #3226 . This makes it probably the longest…

Frequent easily avoidable mistakes in student presentations and how to not make them

If you are a university student, you’ll sometimes have to give presentations about research, mostly in seminars, but also for a thesis. I’ve supervised a lot of those as a PhD student, and I’ve seen people Do A Presentation Badly in all kinds of ways. Since, as an advisor, it’s much more fun to say “Wow! what a great presentation! we’re giving you the best grade!” than “we’re passing you, but only…