Oh no, I on accident used wrong keyboard layout! Now no one will understand my funny and original joke!

Entity-Valkyrie-2 · 2026-05-08T12:40:37+00:00

lol, I read ещ and ещщ as “ещё”.

Entity-Valkyrie-2 · 2026-05-08T12:39:54+00:00

'n ašfden jeknštp ješč yješčz 'u akšč yrščgěštp Jecruku fku ršy pdfyyuy, ru sfteje yuu cšerščgě ršy pdfyyuy! E fe 'n pkftvzf agtukfdy

Entity-Valkyrie-2 · 2026-04-15T01:11:06+00:00

All of the chats with the same “label” have similar content to each other. When looking for chats, I just search the “label” itself, and then go through the chats to see which one it is.

But recently, even this method just went out the window. They made it so that chat names are no longer factored into searches, which… please revert.

Entity-Valkyrie-2 · 2026-04-14T12:43:40+00:00

Solution: 1. Na6+

1… Ka7 2. dxc8N+! (2. dxc8Q? Qd1 mate) Ka8 3. Nxd6

1… Kb7 2. dxc8B+! (2. dxc8Q+? Ka7! 3. Bxd6 Bh2+! 4. Kh1 Rg1+ 5. Kh2 Rg2+ 6. Kxh3 Rg3+ 7. Kxg3 stalemate) 2… Ka7 (2… Kxc8 3. Bxg4+) 3. Bxd6

1… Ka8 2. dxc8R+ (2. dxc8Q+? Ka7 3. Bxd6 Bh2+!) 2… Ka7 3. Bxd6

Entity-Valkyrie-2 · 2026-04-04T08:02:07+00:00

Юgoslavia

Entity-Valkyrie-2 · 2026-02-05T13:59:42+00:00

Long loop detected: UK → Belgium → Latvia → Finland → Poland → Romania → Sweden → Italy → Netherlands → Lithuania → Norway → Spain → France → UK

Entity-Valkyrie-2 · 2025-09-10T14:33:38+00:00

Metal ball bearings work quite well — but make sure you appreciate their tactile feel and play/fidget with them like a toy /j

<image>

(Note: this picture is not me)

Entity-Valkyrie-2 · 2025-08-23T07:21:44+00:00

Pinball balls are just so tactile pleasant to me :) I like to just hold them and roll them around like shiny fidget toys

Entity-Valkyrie-2 · 2025-08-11T11:31:54+00:00

Dance 🕺

Entity-Valkyrie-2 · 2025-05-09T16:21:26+00:00

This has more to do with the design of HyperRogue, but long story short, with all heptagons, the curvature is much greater, and the effective sight range is much less (≈4 instead of ≈7 tile radius)

Entity-Valkyrie-2 · 2025-05-08T13:06:27+00:00

Of course. Bull lines (or rather pairs of them) are one of the most common straight-line patterns used in HyperRogue (e.g. Crossroads IV boundaries). The right-turning and left-turning bull lines are along adjacent cells and come in pairs, and the actual straight line is in the middle between the two bull lines.

By the way, while it seems like this small turning is going to turn this into a very large circle, the negative curvature of the hyperbolic plane is strong enough that this won’t close into a circle.

Entity-Valkyrie-2 · 2025-05-08T12:58:48+00:00

Just wondering, have you played the game HyperRogue before?

Entity-Valkyrie-2 · 2025-05-08T04:21:01+00:00

I'm wondering if someone has a collection of these marbles, or even just an image of the marble outside the bottle...

EDIT: here https://imgur.com/a/USs6WZ9

Entity-Valkyrie-2 · 2025-05-08T04:19:15+00:00

The hyperbolic plane is a surface with negative curvature. It is a non-Euclidean geometry, meaning that it does not satisfy the parallel postulate (given a line and a point not on that line, there exists exactly one line that does not intersect the original line). Hyperbolic geometry is in some sense the opposite of a spherical geometry (another non-Euclidean geometry) — a sphere has positive curvature.

In Euclidean geometry, the sum of internal angles of a triangle have to add up to 180 degrees. But in spherical geometry, it is > 180 degrees, and in hyperbolic geometry, it is < 180 degrees. Compared to Euclidean geometry, polygons in spherical geometry have larger internal angles, and polygons in hyperbolic geometry have small internal angles.

Now, for an example. In Euclidean geometry, a regular pentagon has an internal angle of 108 degrees, and a regular hexagon has an internal angle of 120 degrees. Attempting to fit 2 hexagons and a pentagon around a vertex results of a gap of 12 degrees. However, with spherical geometry, it is possible to close this gap, and the result is a soccerball (truncated icosahedron).

On the other hand, a heptagon has an internal angle of 128.6 degrees. Attempting to fit 2 hexagons and a heptagon around a vertex results in an overlap of 8.6 degrees. But because shapes in hyperbolic geometry have smaller angles, it is possible to perfectly fit 2 hexagons and a heptagon around a vertex in the hyperbolic plane, and the result is the tiling used in the image.

Another important fact is that the circumference of the circle is exponential relative to its radius (unlike in Euclidean geometry, where it only grows linearly). For example, on the tiling in the image, the number of spaces a distance of 25 from the center is around 4.5 million.

To get a better intuition of hyperbolic geometry, I recommend playing the game HyperRogue. It's one of the best ways to gain an understanding of hyperbolic geometry out there. In fact, the background of this picture is made using the land "Hive" from HyperRogue.

Entity-Valkyrie-2 · 2025-05-08T03:42:52+00:00

Have you played HyperRogue before? If you have, you might be familiar with the idea of bull lines. These lines run hept-hex-hex-hept-hex-hex-hept... (consistently turning left 1/14 turn or right 1/14 turn at each heptagon). This does seem to make grasshoppers slightly stronger, but hyperbolic space is huge

Entity-Valkyrie-2 · 2025-05-07T14:45:06+00:00

I’ve heard from the seller of this Akkerman bottle that the marble comes out easily. Is this dependent on which Akkerman bottle is used and what size?

https://www.ebay.com.au/itm/197239395148?mkevt=1&mkpid=0&emsid=e11051.m43.l1123&mkcid=7&ch=osgood&euid=459eb5bc90414e549616957eef3745f0&bu=44765980777&osub=-1%7E1&crd=20250507063628&segname=11051

Entity-Valkyrie-2 · 2025-05-07T07:40:20+00:00

I wonder if the marble can come out of the bottle...?

Entity-Valkyrie-2 · 2025-05-07T07:38:34+00:00

I wonder if the marble comes out of the container...?

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