Landed about 2m away at eye height, and just stayed there. Didn't seem scared at all, so I could get fairly close :)
Not really a special bird here in the Netherlands, but I liked the picture :)
You're right! My mistake here was in translation, as the Dutch name is "koolmees", which literally translates to "coal tit". I've edited the post title
That's what prompted me to post! I had just taken these pictures when I saw your post
Unexpectedly found a bunch of common firecrests near The Hague (where they're not so common as the name suggests). Surprised I was able to get these photo's with the amount of light at that moment.
Both taken on a Canon R50 + Sigma 16-300mm
It started as a test image, but I rather like how it turned out
The general idea is correct, but since we're dealing with electronagnetic waves, they travel slower in any medium. So pumping out all the air of the room would technically make your wifi faster.
Liquid oxygen has (I think) a refractive index of about 1.2, so it would make the signals 20% slower (still very fast)
That would be a "zwarte mees" or "black tit". I guess that's a fitting name as well