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Blog de Hqak (wxyhly)
4D World (IV): Vision of 2D Beings

4D World (IV): Vision of 2D Beings

Many literary works have mentioned fictional 2D flat worlds. We'll experience the first-person perspective of flat beings with computers. This is a pre-excercise for the vision of 4D beings.
2020-01-12
4D World Series
#Peculiar Imagination
[Minecraft] 2B2T Survival Diary (2): Joining an Organization

[Minecraft] 2B2T Survival Diary (2): Joining an Organization

While scouting at Y=120 in the Nether, I found a mature tunnel network and ran 100k blocks before returning to spawn. I Joined a Chinese group, helped build an llama dupe base, but it was griefed by F
2020-01-03
#Minecraft #2b2t
[Minecraft] 2B2T Survival Diary (1): Escaping Spawn in One Go

[Minecraft] 2B2T Survival Diary (1): Escaping Spawn in One Go

2B2T (2b2t.org) is the oldest anarchy server in Minecraft, famous for being unmoderated and chaotic. There are many clickbait titles online that make it sound terrifying: “Veteran player survival rate
2019-11-07
#Minecraft #2b2t
4D Space (X): Knots and Links

4D Space (X): Knots and Links

All knots in 3D can be easily untangled in 4D. There are no knots in 4D. End of article. Of course I wouldn't end this article like that. 2D surfaces (2D ropes?) can form knots!
2019-03-23
4D Space Series
#4D #Geometry #Topology
4D World (III): Road and Railway Design

4D World (III): Road and Railway Design

The previous article introduced various types of vehicles in the four-dimensional world, all of which can freely drive and steer on three-dimensional ground surfaces. Since four-dimensional space does
2019-01-10
4D World Series
#4D #Peculiar Imagination
4D Space (IX): Curved Shapes

4D Space (IX): Curved Shapes

We will focus on curved surface (cell) in 4D. We'll understand them from new perspectives (thickening, lofting, solids of revolutions). Then some new objects - duocones, Polytwisters, and 4D spirals.
2018-09-02
4D Space Series
#4D #Geometry
4D World (II): Road Traffic

4D World (II): Road Traffic

In the last post I mentioned that 4D urban traffic doesn't need overpasses because the ground is 3D, and traffic flows in two directions only need to follow skew lines. Now let's first study what road
2018-08-16
4D World Series
#4D #Peculiar Imagination
4D World (I): Planetary Day-Night and Seasonal Cycles

4D World (I): Planetary Day-Night and Seasonal Cycles

In my previous articles on 4D space, I described a world on a 4D planet. This time, I'll investigate the day-night and seasonal changes produced by a 4D planet's rotation and revolution. The first thi
2018-08-12
4D World Series
#Javascript #4D #Geometry
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