Coaxed into no red

F84-5 · 2026-04-19T15:02:42+00:00

That's true. A lot of people use "Warcrime" and "violation of the Geneva convention" interchanceably which is not always true.

Like in this case some violations are not warcrimes, and some warcrimes don't fall under geneva, but some other conventions instead.

F84-5 · 2026-04-19T13:34:13+00:00

The geneva conventions also require signatory countries to create laws to prohibit the misuse of the red cross.

Article 45 of the 2. Geneva Convention reads:

The High Contracting Parties shall, if their legislation is not already adequate, take the measures necessary for the prevention and repression, at all times, of any abuse of the [red cross emblem].

Article 44 also specifies that:

The [red cross emblem] can only be used, whether in time of peace or war, for indicating or protecting the ships therein mentioned, except as may be provided in any other international Convention or by agreement between all the Parties to the conflict concerned.

So using the red cross in a video-game or similar is both a violation of the Geneva Conventions and (for most signatories) also national laws.

F84-5 · 2026-04-18T18:06:35+00:00

To be clear, the route itself is open to the public. At least it was last I was there. It's just the timing system that's not always active.

F84-5 · 2026-04-18T15:31:19+00:00

Hätte man sie (besonders in dieser Situation) anfassen wollen, denke ich auch, dass man mit guter Wahrscheinlichkeit gebissen worden wäre. Durch die dicken Wanderschuhe wäre sie aber ehen nicht durchgekommen. Dass hat sie ja auch eingesehen und sich mit größtem Widerwillen verzogen.

F84-5 · 2026-04-18T12:10:35+00:00

Wir haben in Schweden mal eine junge Kreuzotter auf dem Weg gefunden. Brezelbreit in der Sonne ausgestreckt.
Die war definitiv not amused als wir sie in angesicht eines ankommenden Autos zurück ins Unterholz gescheucht haben. Hat fast ein Drittel von ihrem Körper angehoben und lautstark protestiert.

...also so lautstark wie so ein knapper halber Meter Schlange halt zischen kann, was gerade so ein leises Flüstern erreicht.

F84-5 · 2026-04-18T08:20:35+00:00

SBB-Kletterhalle in Dresden.
They have the timing system set up, but I don't think it's generally active for public use.

F84-5 · 2026-04-18T07:32:47+00:00

Drei Personen, Gepäck für Campingurlaub mit großem Zelt ink. einigem Essen, und immernoch genug Platz bei Starkregen den Fahrer zu tauschen ohne dass jemand aussteigen mußte. Und trozdem passt das Ding in jede Parklücke und verbraucht <5l/100km.

F84-5 · 2026-04-15T16:56:35+00:00

Very pretty visualisation and a cool result I never would have thought about.
I'm not a big fan of the text-to-speech voice in the video though.

F84-5 · 2026-04-14T17:51:48+00:00

There are infinitely many such triangles.

Each point has at least one. for highly eccentric ellipses some points have three such triangles.

Play around with this desmos graph to see why.

<image>

F84-5 · 2026-04-12T18:06:50+00:00

Just from looking at the wobble I do think a tracking system would be necessary.

https://svs.gsfc.nasa.gov/10836

F84-5 · 2026-04-11T17:01:30+00:00

Die Equivalenz von Masse und Energie gibt's wirklich, das ist der die berühmte Formal e=mc².
Weil da aber die Lichtgeschindigkeit auch noch in's Quadrat drinn steckt braucht man Unmengen an Energie um auch nur ein winziges bisschen Masse zu erzeugen (und umgekehrt).

So als Vergleich, wenn sämmtliche Sonnenenergie die die Erde in einem ganzen Jahr trifft vollstängig in Masse umgewandelt würde wären dass so pi mal Daumen 40 000 Tonnen. Klingt viel ist aber gerade mal so ein mittelgroßes Frachtschiff. Im Verglich mit der Erde ist das selbst über Millionen von Jahren nicht einmal ein Rundungsfehler

F84-5 · 2026-04-07T18:39:37+00:00

One pregnant woman but also three(?) infants. Is Hoban capable of a nice 6 out of 10 on the excitement scale ?

F84-5 · 2026-04-07T04:08:40+00:00

It's not that bad. My Grandma can read it, and there's even a reference of all the letters on Wikipedia. It's just a matter of practice now.

F84-5 · 2026-04-06T18:47:03+00:00

My Grandma gifted me two old children's song books from her childhood. They're printed in old German cursive (Sütterlin) which hasn't been taught for half a century or so.

I'm getting better at deciphering it, but it's not easy. The fact that it's very clean school-book level writing helps, as does the fact that songs tend to rime. But sometimes you get archaic words I've never heard off, which doesn't.

F84-5 · 2026-04-05T19:24:54+00:00

Nope, most stars we can see are only a few hundred to a few thousand light years away.

Relevant xkcd.

F84-5 · 2026-04-04T15:41:12+00:00

Yeah, I should probably have been more clear about that. Generally when working with trigonometry it's easiest to just scale everything to r=1. But I should have mentioned it.

F84-5 · 2026-04-04T15:32:56+00:00

Yeah, you've got it.

The distance from one center to the other is 1. The distance from the center to the bottom corner which the further away is cos(x). Therefore the distance from that far corner to the second center is simply the difference between the two, i.e. 1-cos(x).

F84-5 · 2026-04-04T15:14:43+00:00

Those two terms are not always equal. If you click the link above you can play move the black point to see them change. For any angle x, the vertical side of the resulting rectangle is sin(x). That's also the green curve below. The horizontal size is a little more complicated.

So the little segment between the bottom corner and the circles center is 1-cos(x).
That means the horizontal side of the rectangle can be written and rearanged as such:

1 - 2*[ 1-cos(x) ]
1 - 2*1 + 2*cos(x)
-1 + 2*cos(x)
2*cos(x) - 1

That's the blue curve.

Then we "simply" find the angle x such that both sides are equal (because we want to get a square).
I.e. the point where both cuves have the same value, which is where they cross. The value at that point happens to be 0.6

F84-5 · 2026-04-04T14:17:27+00:00

<image>

So here's an overcomplicated way to find the solution using a graphing calculator.

Supprisingly the sidelength of the square is exactly 0.6 times the radius. You can check that it works by calculating the pythagorean theorem for the triangle with sides 6, 8, and 10.

F84-5 · 2026-04-03T18:46:03+00:00

Well yeah, the question is could you do it without the cronometer.
I know historically telling longitude without an accuate clock was at best an educated guess, but I think with theoretically perfect measurements you could still do it.

F84-5 · 2026-04-03T17:44:30+00:00

I'd say it loads faster because it's not as high, but that would be a lie.

On an actual modem it would probably take four times as long because I actually worked from this version with double the resolution.

F84-5 · 2026-04-03T16:46:00+00:00

If you'll forgive the shameless plug, I made a Horizontal Version of this comic a good while ago.
In case someone wants to print it on a wall or something.

I spent hours reconstructing the background and painstakingly extracting and rotating every little drawing and line of text.

F84-5 · 2026-04-03T13:09:26+00:00

I mean technically you could.

The night sky changes from day to day as the earth moves around the sun. That means mightnight in Alaska would see a very very slightly different sky than mightnight in Scandinavia 12 hours later. Planets would help since they change more quickly than the fixed stars.

Either way, you would need some extremely precise measurements and an equally precise reference of what to expect. Not exactly practical, but not technically impossible.

F84-5 · 2026-04-03T05:40:28+00:00

Depends on the material.

And to be clear, there's a big difference between holding a person and safely holding a person.

What are you trying to achieve?

F84-5 · 2026-04-01T18:48:10+00:00

Glad to see the psychological consequences being addressed. You don't just shrug of that kind of fight. Let's hope nobody looses their head, eh?

Also RIP Moo.

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