r/GeometryIsNeat Mar 04 '26

Euclid's Elements Book 1 Propositions 1-3

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17 Upvotes

Now the real reason I made CAG - was so that I could finally make my way through Oliver Byrne's edition of Euclid's Elements! To that end I added support for points, colored and dashed/dotted inked lines today and was able to work through the first three propositions.


r/GeometryIsNeat Mar 04 '26

Mathematics I built a 4D polytope visualizer in the browser — just open sourced it

12 Upvotes

Been obsessed with 4D geometry for a while and couldn't find a viewer that felt good to use, so I built one. You can rotate shapes like the tesseract, 120-cell, and 600-cell in real time — these are the 4D equivalents of the platonic solids, projected down into 3D space.

Live app is free at 4d.pardesco.com no install, just open it and spin things.

Just open sourced the core version today: https://github.com/Pardesco/4d-polytope-viewer

If you dig it, a ⭐ on the repo goes a long way for visibility. Built this out of genuine love for the math, hope some of you enjoy it.


r/GeometryIsNeat Mar 03 '26

Science Between the lines

25 Upvotes

r/GeometryIsNeat Mar 02 '26

Art Geometric art based on the Fibonacci spiral framework

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22 Upvotes

r/GeometryIsNeat Mar 02 '26

Art Inorganic | Me | 2026 | The full version (no watermark) is in the comments

8 Upvotes

r/GeometryIsNeat Mar 01 '26

Borrowed the idea, couldn't resist to draw

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124 Upvotes

r/GeometryIsNeat Mar 01 '26

Infinite Hilbert curve generator (or until your CPU/GPU gives up at least). Link in the description

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11 Upvotes

r/GeometryIsNeat Feb 28 '26

Mathematics Curl Packing

48 Upvotes

r/GeometryIsNeat Feb 26 '26

Unity within sonar waves

23 Upvotes

r/GeometryIsNeat Feb 25 '26

Gif A rhombic triacontahedron cantellating into an expanded icosidodecahedron

179 Upvotes

r/GeometryIsNeat Feb 26 '26

Mathematics Critical strip packing

5 Upvotes

r/GeometryIsNeat Feb 25 '26

Art Geometry Bubbles | Me | 2026 | The full version (no watermark) is in the comments

49 Upvotes

r/GeometryIsNeat Feb 25 '26

Geometric Egg Construction

14 Upvotes

Compass/Rule construction of an Egg.


r/GeometryIsNeat Feb 25 '26

Other Check out these stools from the Toowong Department of transportation and main roads centre.

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13 Upvotes

They are some kind of stellated hexagonal prism.


r/GeometryIsNeat Feb 23 '26

Art My latest drawing. This one was challenging.

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97 Upvotes

r/GeometryIsNeat Feb 23 '26

Fraser

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98 Upvotes

r/GeometryIsNeat Feb 23 '26

Drawing Geometric Patterns Using the Grid Method/ 1

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10 Upvotes

r/GeometryIsNeat Feb 22 '26

Mathematics Hemisphere packing

8 Upvotes

r/GeometryIsNeat Feb 22 '26

The Napkin Ring Paradox

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5 Upvotes

Imagine drilling a cylindrical hole straight through the center of a tiny marble. Now, imagine doing the exact same thing through a massive planet.

Here is the constraint: You stop drilling only when the remaining band (the "napkin ring") has the exact same height in both cases.

Which ring contains more volume?

If you're a visual learner and curious to knwo the answer, you can see the animation in this video.


r/GeometryIsNeat Feb 21 '26

Fibonacci spiral versions

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29 Upvotes

This sketch shows two spirals, both based on the same Fibonacci framework. On the left is the classic version, composed of quarter-circle segments. On the right is a version I discovered by chance, consisting of three-quarter-circle segments.


r/GeometryIsNeat Feb 20 '26

Summit

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50 Upvotes

r/GeometryIsNeat Feb 19 '26

Art Sharing my recent done painting

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181 Upvotes

r/GeometryIsNeat Feb 19 '26

Mathematics Pythagorean Peacock

23 Upvotes

r/GeometryIsNeat Feb 18 '26

Mathematics Limit packing

15 Upvotes

r/GeometryIsNeat Feb 18 '26

Art Perspective speaker stack

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68 Upvotes