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Good morning. Starlink has now launched more than TEN THOUSAND satellites into orbit. Nearly 1400 have already been burned up in the atmosphere so far.

Here's a "lovely" image from my Kuiper Belt discovery program with dozens of satellite streaks in a 3 hour stacked exposure from CFHT. This was from 2022, when there were thousands fewer satellites... This is dumb.

Image credit: P. Cowan/W. Fraser/S. Lawler/CLASSY Survey Team

(The small streaks that are similar lengths are actually asteroids!)

@noelfb

There should automatically be an entry. If not, you can create the desktop file[1] yourself, set `Exec=flatpak run ...` and other fields like the name. Then put it in an appropriate folder (probably ~/.local/share/applications). Depending on what you use to list applications, you might need to update some database.

[1] https://wiki.archlinux.org/title/Desktop_entries

Desktop entries - ArchWiki

@patrickgaley
You don't need to be smart to play chess and just because you are confused by chess doesn't mean that you are not smart 😉
@liamo
I'm also not a chess expert, but I'm currently having fun with the Jobava London after playing the "normal" London for a while.

@frcl Not a lot of physics and some more outreach focused, but here are some:

Terence Tao: @tao
John Carlos Baez: @johncarlosbaez
Matt Henderson: @matthen2
Katie Mack: @AstroKatie
Steven Strogatz: @stevenstrogatz

@dfurdo g2 isn't mate, the king can move back to h2.

@Garrett That's probably also a good position to mention the application for topological superconductors. There the sign of T² is important for classifying systems (the "tenfold way", see [1] or even @johncarlosbaez blog[2]).

Three symmetries are important here, time reversal T, particle hole C and chiral S, which is the combination of the two (the name of the operators differ sometimes).

[1] https://iopscience.iop.org/article/10.1088/1367-2630/12/6/065010
[2] https://math.ucr.edu/home/baez/tenfold.html

1/n

Um 19 Uhr beginnt am Campus Süd des KIT und im Triangel Open Space am Kronenplatz die Nacht der Wissenschaft #ndwka @[email protected]. Wer's nicht rechtzeitig schafft, kann sich zu einzelnen Vorträgen online zuschalten: https://www.ndw-ka.de/
Nacht der Wissenschaft

@Nabla I had to tell someone that tabs in browsers are a thing. And that person wasn't new to computers in the slightest and had been browsing the web for many years.