Monday, July 21, 2025

Geometry Links - July 21, 2025

Harnessing the Universal Geometry of Embeddings: "A new paper shows all language models converge on the same "universal geometry" of meaning. Researchers can translate between ANY model's embeddings without seeing the original text."
https://arxiv.org/pdf/2505.12540
hat tip: Ethan Mollick

A Tour in the Wonderland of Math with Python - A collection of python scripts for drawing beautiful figures and animating interesting algorithms in mathematics.
https://github.com/neozhaoliang/pywonderland
hat tip to Karl Thidemann

One of Robert Boyle's "Curious Mathematical Forms" (1670)
https://x.com/pickover/status/1931542696474079529
hat tip to Karl Thidemann

Expanding Racks from Henry Segerman
Video: https://www.youtube.com/watch?v=iWknov3Xpts
Printable plans: https://www.printables.com/model/1305045-expanding-3-4-5-triangle
Article: https://www.core77.com/posts/137381/Expanding-Mechanisms-Designed-by-Henry-Segerman

Glynn Fractal
https://x.com/pickover/status/1831016941785407558
Glynn Julia Set
https://www.flickr.com/photos/subblue/3647227394
hat tip to Karl Thidemann

Geometric animations
https://x.com/Yann_LeGall

A new tetrahedron that always lands on the same side
https://www.quantamagazine.org/a-new-pyramid-like-shape-always-lands-the-same-side-up-20250625/
hat tip boingboing.net

Culture changes perception: circles or rectangles?
https://www.science.org/content/article/culture-literally-changes-how-we-see-world
hat tip: @BernieDoesIt@mstdn.social

Emily Dickinson’s Herbarium - pressed flowers and designs from a unique poet at an early age
https://iiif.lib.harvard.edu/manifests/view/drs:4184689$1i
hat tip: https://www.themarginalian.org/2017/05/23/emily-dickinson-herbarium/

Geometers Circle - geometric art and tutorials
https://geometerscircle.com/

Kinetic model of a tesseract
https://www.creativeapplications.net/project/round-about-four-dimensions-exploring-the-unknown/
hat tip: https://www.core77.com/posts/137789/An-Eye-Popping-Kinetic-Representation-of-a-Tesseract

Rinus Roelofs' exhibit at the Bridges conference
https://www.facebook.com/1206771269/videos/pcb.10239412001017345/2107838516375795
https://www.facebook.com/1206771269/videos/pcb.10239412001017345/709305988673842
https://www.facebook.com/1206771269/videos/pcb.10239412001017345/1800623344186058

Friday, May 23, 2025

Geometry Links - May 23, 2025

 Lunar moth - biological design

https://www.youtube.com/watch?v=puejRndICqQ

Archimedean Solids in the 15th and 16th Centuries
https://veraviana.net/history-of-science/archimedean-solids/

Specimens of “fancy turning” from 1869
https://publicdomainreview.org/collection/fancy-turning/
hat tip boingboing.net

Geometry homebrew animation
https://x.com/LimbaTrip/status/1905481692619702507

The Schrödinger Equation
https://www.facebook.com/watch?v=1008462380657737
hat tip Gil Friend
Another visualization for one dimensional Gaussian wave packet and Non Relativistic Schrödinger equation
https://x.com/PhysInHistory/status/1922617024246612302

Hopewell Culture and mound-building geometry
https://www.bbc.com/travel/article/20221204-the-us-2000-year-old-mystery-mounds

The Blossom of Dimensions - Meditative 3D Mandelbrot Zoom - Music by Art of Chance
https://www.youtube.com/watch?v=-1x9cGWs9yE

A sculptural desk organizer
https://www.core77.com/projects/136193/KIIR-A-Sculptural-Desk-Organizer-for-Creative-Workspaces

A crow’s math skills include geometry
https://www.npr.org/2025/04/12/nx-s1-5359438/a-crows-math-skills-include-geometry

GeekMom's LED deltoidal hexacontahedron covered with 3D printed diffusers with "two #Pixelblaze controllers work in sync to provide a fast frame rate for patterns on the 1200 LEDs”
https://mastodon.social/@geekmomprojects/114354417573389621

1903 Japanese book of wave and ripple designs
https://publicdomainreview.org/collection/hamonshu-a-japanese-book-of-wave-and-ripple-designs-1903/
Earlier:  
from https://geometrylinks.blogspot.com/2023/05/geometry-links-may-24-2023.html
Hokusai’s Quick Lessons in Simplified Drawing in Three Volumes
https://cdn.flipsnack.com/widget/flipsnackwidget.html?hash=ftcsgji5x&bgcolor=EEEEEE&t=1481362893
https://cdn.flipsnack.com/widget/flipsnackwidget.html?hash=fti4xlqen&bgcolor=EEEEEE&t=1481363446as
https://cdn.flipsnack.com/widget/flipsnackwidget.html?hash=fdcj01ckg&bgcolor=EEEEEE&t=1481364640
Article:  https://inaminuteago.com/free-drawing-lessons-great-master-hokusai/
Catalogue Raisonne of Hokusai:  http://www.hokusai-katsushika.org/index.html
from https://geometrylinks.blogspot.com/2020/07/geometry-links-july-23-2020.html
Geometric Hokusai from 100 Views of Mt Fuji
Through a Spider Web:  https://www.pinterest.com/pin/365495325984645798/
Torigoe:  https://commons.wikimedia.org/wiki/File:Hokusai,_Fuji_at_Torigoe.jpg
At Sea (note the Escher transformation long before Escher was born):  https://theconversation.com/how-hokusais-great-wave-came-into-the-world-77750

Bastien Dausse, Gravity Explorer
https://www.instagram.com/bastiendausse/?hl=en
hat tip:  https://www.core77.com/posts/136812/Acrobatic-Artist-Bastien-Dausses-Low-Tech-Wall-Walking-Invention

Friday, March 21, 2025

Geometry Links - March 21, 2025

 Packaging design

https://x.com/gunsnrosesgirl3/status/1876944504051114400

A laptop stand from a single sheet of paper
https://www.core77.com/posts/134948/A-Laptop-Stand-Made-from-a-Single-Sheet-of-Recycled-Paper

Animated Mandelbrot zoom video with pastels and sepia pencil
https://www.youtube.com/watch?v=DU3TaKPhPac

Snowflakes: a chapter from the book of nature by Israel Perkins Warren - published in 1863 - with beautiful illustrations
https://publicdomainreview.org/collection/snowflakes-a-chapter-from-the-book-of-nature-1863/
https://archive.org/details/snowflakeschapte00warriala/page/n3/mode/2up
hat tip:  boingboing.net
A global classification of snow crystals, ice crystals, and solid precipitation based on observations from middle latitudes to polar regions
https://www.researchgate.net/publication/257132993_A_global_classification_of_snow_crystals_ice_crystals_and_solid_precipitation_based_on_observations_from_middle_latitudes_to_polar_regions which found that snowflakes can be divided into thirty-nine categories, further divisible by 121 subtypes.

Simone Conradi drawings "using mathematics and Python, no generative AI"
https://bsky.app/profile/sconradi.bsky.social

Geometric and other art, some intriguing ideas
https://lovid.org/

Unfold Form - origami reusable concrete form that reduces the need for both concrete and steel
https://ethz.ch/en/news-and-events/eth-news/news/2025/01/zigzags-for-greener-construction.html
https://www.core77.com/posts/135375/Architecture-Student-Invents-Brilliant-Formwork-that-Reduces-Concrete-n-Steel-Usage

Robert Obier’s sculptures and art
https://www.obierstudios.com/portraits
https://www.core77.com/posts/135547/Architect-Industrial-Designer-and-Sculptor-Robert-Obiers-Creations

"The go-to source for physical puzzles"
https://www.puzzlemaster.ca/
hat tip:  https://kk.org/cooltools/

Geometric cakes for Ramadan
https://www.bbc.com/travel/article/20240406-kek-lapis-the-most-beautiful-cake-for-ramadan

Animation of the three-body problem
https://mastodon.social/@infobeautiful@vis.social/114155933549054103

Smoke ring geometries
https://x.com/stonersvilla/status/1901635534721605898

Thursday, January 9, 2025

Geometry Links - January 10, 2025

 Mathematicians discover new universal class of shapes to explain complex biological forms

https://www.ox.ac.uk/news/2024-09-12-mathematicians-discover-new-universal-class-shapes-explain-complex-biological-forms
The paper itself:  Soft cells and the geometry of seashells
https://academic.oup.com/pnasnexus/article/3/9/pgae311/7754698?login=false
hat tip boingboing.net

Structural modeling kit - magnets and springs
https://molamodel.com/
https://www.core77.com/posts/133959/Architecture-Student-Develops-Structural-Modeling-Kit-Now-Sells-Them-Worldwide

The Geometry of Concepts: Sparse Autoencoder Feature Structure - geometric structure in LLM-learned concepts
https://arxiv.org/abs/2410.19750

First coherent picture of atomic nucleus made of quarks and gluons
https://press.ifj.edu.pl/en/news/2024/10/15/

Online collection of plaid patterns
https://plaid-patterns.com/
hat tip boingboing.net

Kelli Anderson’s imaginative pop-up books
https://www.kellianderson.com/books/

Geometry of tides and rivers
https://www.instagram.com/p/DAEvhs1ynYD/
More at https://www.instagram.com/geometriasagrada.en/
hat tip:  boingboing.net

Alhambra Palace and Crystallographic Groups
https://structures.uni-heidelberg.de/blog/posts/2023_01_palace_crystallographic/index.php
hat tip Howard Rheingold

The vault organelle
https://en.wikipedia.org/wiki/Vault_(organelle)
hat tip Massimo @Rainmaker1973

"The Steampunk Whirling Wonder Fidget (Gear Ball)” 
https://www.grynalor.com/products/the-steampunk-whirling-wonder-fidget-gear-ball

Maze Generator
https://mazegenerator.net/
hat tip kk.org/cooltools

Moving Geometry from Vera Viana
https://veraviana.net/