Tuesday, July 7, 2020

Geometry Links - July 7, 2020

Square Wave - kinetic sculpture
https://kinetrika.com

Difold origami folding bottle
https://www.kickstarter.com/projects/difold/origami-bottle/description

"A Clarified Typology of Core-Periphery Structure in Networks"
"We unpack an often overlooked distinction between hub-and-spoke and layered core-periphery models in empirical network analyses"
https://arxiv.org/abs/2005.10191
Beautiful Twitter thread introduction to the concepts
https://twitter.com/ryanjgallag/status/1263450637628555267

Wood rock set balancing blocks
https://audirin.com/collections/toys-games/products/wood-rock-set-balancing-blocks-natural-wood-toy

Sand drawing robot with 50 miniature servos and two half tanks - large scale “dot matrix” beach printer
https://youtu.be/i6IIcoQ3-C0
https://www.core77.com/posts/100381/Ivan-Mirandas-Sand-Drawing-Robot
Editorial Comment:  Ivan Miranda should talk with Theo Jansen and do this as a strandbeest
https://www.strandbeest.com

Octopus at 1600 meters
https://twitter.com/zaibatsu/status/1275967558521364480

"A database of paper airplanes with easy to follow folding instructions, video tutorials and printable folding plans. Find the best paper airplanes that fly the furthest and stay aloft the longest."
https://www.foldnfly.com/index.html
hat tip https://kk.org/cooltools/

A Decade of the Sun - "Every second of the 61-minute video represents images taken over a single day, with the first frame showing the sun on 2 June 2010, and the last frame captured on 1 June 2020.”
https://youtu.be/l3QQQu7QLoM

The Shape of Difficulty:  A Fan Letter to Unruly Objects by Bret L. Rothstein
"an ode to and exploration of these 'unruly objects'—Rubik's cubes, geometric dissections, secret-opening boxes, string disentanglements, and so many more"
http://www.psupress.org/books/titles/978-0-271-08242-4.html
Editorial Comment:  The author is a cousin I’ve never met.  He is the first enigmatologist I’ve known of.

Smart Thermally Activated Textiles - robotic fabric 
https://www.engadget.com/harvard-robotic-fabric-therapeutic-wearables-150108871.html
https://youtu.be/P1pgW6ANGO0

Barbara McKell Art - mandalas
https://www.facebook.com/pg/barbaramckell2019/photos/

Game engine for non-Euclidean worlds
https://youtu.be/kEB11PQ9Eo8

The Most Important Jigsaw Puzzle
https://www.dailykos.com/stories/2020/6/25/1956012/-The-Most-Important-Jigsaw-Puzzle

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