Geometry Links - December 9, 2020

 Bees “shimmering"

https://youtu.be/dU2rLhpaMAY

Editorial Comment:  Bees and ants and termites are amazing, with complex social organizations we can learn a lot from.  My notes to Honeybee Democracy are available at 
http://hubeventsnotes.blogspot.com/2018/05/honeybee-democracy.html and here’s a link to an architect who is using termite mounds as a model for passively cooling buildings in Africa and Australia:  https://www.greenbiz.com/article/how-termites-inspired-mick-pearces-green-buildings

"‘abstraction & reasoning corpus’ (arc) presents a fictional training set for agent reasoning testing for concepts such as hierarchy, object permanence, and symmetry. inspired by the work of ai researcher françois chollet, the work plays on ideas relating to pattern recognition in human and machine learning.”
https://left.gallery/work/abstraction-and-reasoning-corpus
http://cavvia.net/039/ARC/

Event of Vibration
https://www.facebook.com/howlinbuddha/posts/10164470271945541
https://www.facebook.com/Contemporary-Art-Japan-美術と街巡り-112670990258854/
https://www.core77.com/posts/102887/Using-a-Specially-Designed-Vibrating-Tabletop-to-Create-Live-Art
hat tip Marjorie Farrell

Whale shark patterns
https://twitter.com/tveitdal/status/1325006707773353984

Jeremy Mayer’s typewriter sculptures
https://jeremymayer.com/Artist.asp?ArtistID=18688&Akey=23SVCF6T&ajx=1
https://twitter.com/JeremyMayer
https://www.instagram.com/jeremymayer/
https://www.thisiscolossal.com/2020/11/jeremy-mayer-typewriter-sculptures/

3-D Cellular Automata
https://youtu.be/dQJ5aEsP6Fs

Victor Acevedo 2021 wall calendar
https://www.etsy.com/listing/911505661/wall-calendars?ref=shop_home_active_1&fbclid=IwAR0l2Tnv_r1jPBfxJHmXmVa78276b64MnshJhG1XP3-64D-uBcetYh2wyS0

Water in an acoustic field responding to harmonics
https://www.facebook.com/jain108academy/videos/1120004248387519

Voxels - modular metamaterials from MIT
https://news.mit.edu/2020/versatile-building-blocks-1118
hat tip Vinay Gupta
And another building system:  Extensor Construction Kit
http://www.mathmechs.com/
hat tip Edmund Harriss

Geobender - geometric toys
https://www.geobender.de/us/shop-2/?v=3a52f3c22ed6
https://www.tiktok.com/@geobender

Impossible Dominoes - how to make dominoes that bounce back up (you need two)
https://youtu.be/JlgAv1AYfBc

141 Optical Illusions
https://michaelbach.de/ot/
hat tip boingboing.net

Mathematical Art by Henry Segerman
https://www.shapeways.com/shops/henryseg
hat tip Kevin Kelly

A tetrahedron divided into thirds and fits inside an octahedron
https://geometrylinks.blogspot.com/2020/12/a-tetrahedron-divided-into-thirds-that.html
Editorial Comment:  I’m working on the interrelations of the Platonic Solids again these days

A Tetrahedron Divided Into Thirds That Fits Inside an Octahedron

Happy Merry New and Bah Humbug

Geometry Links - November 4, 2020

 Triple axis watch tourbillon

https://www.royist.com/horology/the-mbf-legacy-machine-thunderdome-jointly-signed-by-eric-coudray-and-kari-voutilainen/

https://www.nytimes.com/2020/10/12/fashion/watches-tourbillon-eric-coudray.html

Sisyphus Table - kinetic sand art
https://sisyphus-industries.com
https://boingboing.net/2020/10/16/sisyphus-tables-create-shifting-mathematical-sand-patterns.html

Jennifer Townley - mechanical and geometric art
http://www.jennifertownley.com
https://www.instagram.com/jennifertownleyart/
https://www.core77.com/posts/102331/Jennifer-Townleys-Mesmerizing-Mechanical-Sculptures

Anyons - bosons, fermions, and now anyons
https://www.quantamagazine.org/milestone-evidence-for-anyons-a-third-kingdom-of-particles-20200512/

Dave Blair’s video feedback kinetic sculpture
https://youtu.be/wMeV98BHLVE
https://www.youtube.com/channel/UCnvC7-_psQKJf31YpfnVlPQ

Scott Darby’s projects - programmer and sound designer
https://scottdarby.com/#projects

Simple software for complex wooden joints based upon Japanese carpentry traditions
http://ma-la.com/tsugite.html
https://www.u-tokyo.ac.jp/focus/en/press/z0508_00138.html

PORTALS & CRYSTALS at Crystal Bridges Museum in Arkansas - Crystals In Art Exhibit 2019
https://youtu.be/9GHvMEtdug4

Fire ant paintings
https://horacesnature.com/2019/05/20/fire-ball-ants-painting/

3D Solar Panel Design Increases Light Absorption By 125%
https://www.goodnewsnetwork.org/3d-solar-panel-design-increases-light-absorption-by-125pt/
Editorial Comment:  It takes about a decade to go from lab to the marketplace, if the lab development ever makes it that far, so pace your expectations
Light trapping in solar cells: simple design rules to maximize absorption - scientific paper
https://www.osapublishing.org/optica/fulltext.cfm?uri=optica-7-10-1377&id=440926
Editorial Comment:  The design described reminds me of a Peano curve (https://en.wikipedia.org/wiki/Peano_curve) which I’ve seen suggested for a heat transfer system

Daniel Garber - sculpture and painting
https://wizardgarber.wixsite.com/wizardslair-1/emotional
https://wizardgarber.wixsite.com/wizardslair-1/landscapes
hat tip to Tom “Blue” Newell

Conservation of angular momentum demonstrated with a Hoberman sphere
https://youtu.be/64t-dVtDwkQ
hat tip to Karl Thidemann

Geometry Links - September 23, 2020

 Mobius Strips and Klein Bottles

https://www.gettyimages.com/photos/mobius-strip?mediatype=photography&phrase=mobius%20strip&sort=mostpopular
hat tip to Denise Ward

The first Klein Bottle House I knew about was a painting by Paul Laffoley, whom I knew a little
https://www.pinterest.com.au/pin/717057571894878914/
But someone’s actually built one in Australia
https://www.designboom.com/architecture/the-klein-bottle-house-by-rob-mcbride/

The Mesmerizing Microscopy of Trees: Otherworldly Images Revealing the Cellular Structure of Wood Specimens
https://www.brainpickings.org/2018/10/11/archie-f-wilson-wood-specimens/
hat tip to Marjorie Farrell

Andres Amador’s beach art
https://andresamadorarts.smugmug.com

Wicker Pavilion
http://www.dja.lv/projects/Wicker-Pavilion/
https://inhabitat.com/262-wicker-baskets-come-together-in-a-stunning-arched-pavilion/

A Madparker tweet video
https://twitter.com/madparker/status/1306803854361726976

Kinetic wooden sculptures by David C Roy
https://www.woodthatworks.com/wood-that-works-2010-2019

New discovery about the regular dodecahedron
https://www.wired.com/story/mathematicians-report-new-discovery-about-the-dodecahedron/

Inconvergent - code art
https://twitter.com/inconvergent/status/1308094415328731136
https://github.com/inconvergent/weir

Dinámica de fluidos en toda su gloria
https://twitter.com/HdAnchiano/status/1303798487830728705

Kumi Yamashita’s shadow art
http://kumiyamashita.com/light-shadow
https://youtu.be/PoxHdszQ5II - interview in English with Chinese commentary

Ghee Beom Kim's Geometric Art
https://sites.google.com/site/geometricarts/
https://www.facebook.com/ghee.b.kim

Geometry Links - September 7, 2020

 Ames Window optical illusion

https://youtu.be/0KrpZMNEDOY

Small geodesic greenhouse built from trash
https://youtu.be/pfHtIs9uZZA

The Bubble House is for sale
https://youtu.be/8JhWpEvmLws
https://www.core77.com/posts/101460/Architecture-Grad-Spends-10-Years-Building-Senior-Thesis-Bubble-House-Design-Lives-in-it-for-36-Years

Illusory Material
https://vimeo.com/398429214
https://www.core77.com/posts/101458/Design-Duo-Spots-Untapped-Potential-of-Multimaterial-3D-Printing-Lenticular-Effects-on-3D-Objects

Constructing the Universe - Michael S. Schneider's an "educator and writer who encourages a love of learning through an appreciation of the intersections of mathematics, nature, art, science and culture."
http://www.constructingtheuniverse.com

Logistic map connection between fluid convection, neuron firing, the Mandelbrot set and so much more
https://youtu.be/ovJcsL7vyrk

How a gemcutter makes the complex Cleopatra’s Eye
https://youtu.be/BLnw4n-BX14

Adapting Harvard’s Graduate School of Design courses to online only
https://www.core77.com/posts/101541/Steps-That-Harvard-Graduate-School-of-Design-is-Taking-to-Adapt-to-Online-Only-Courses

Ornitographies - the patterns birds make as they move through the sky
http://www.xavibou.com/index.php/project/ornitographies/

Trichroic prisms
https://youtu.be/0za1DM_azi8
https://youtu.be/OCOoZ1ylxyA

Gabriel Dawe’s rainbows made from thread
https://youtu.be/5VRu894Lgn0
https://youtu.be/Z6Aji6FWkZE

Elliot O’Neil’s infinity tables and layered plexiglass works
https://www.instagram.com/elliot.oneal/

Geometry Links - August 19, 2020

 Shock dissipation from fractal cubes

https://aip.scitation.org/doi/10.1063/5.0015179

https://scitechdaily.com/forging-high-tech-armor-from-shock-dissipating-fractal-cubes/

Plato’s cube and the natural geometry of fragmentation
https://www.pnas.org/content/early/2020/07/16/2001037117
https://scitechdaily.com/geophysicists-mind-blowing-discovery-plato-was-right-earth-is-made-on-average-of-cubes/

Pentadiamond - how build a harder diamond
https://scitechdaily.com/pentadiamond-scientists-devise-a-way-to-build-a-harder-diamond/
https://journals.aps.org/prl/abstract/10.1103/PhysRevLett.125.016001

Spherical Geometry Is Stranger Than Hyperbolic Geometry
https://youtu.be/yY9GAyJtuJ0
More videos from the developer of Hyperbolica, a computer game 
https://www.youtube.com/channel/UCrv269YwJzuZL3dH5PCgxUw

Japanese puffer fish nests
https://www.google.com/search?safe=active&rls=en&source=univ&tbm=isch&q=Japanese+puffer+fish+nest
Simple rules for construction of a geometric nest structure by pufferfish
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6098008/
hat tip to Joan Mokray

Little Architect - architectural building kit
https://us.arckit.com/products/arckitplay-little-architect
https://youtu.be/OUy9ryZLp4k - promo video
https://youtu.be/hXQBsvB9Ovo - video review
Editorial Comment:  When I was a kid, I used to design and build house models out of balsa wood.  Would have been good to have this

How a Tesla engineer redesigned the chocolate chip
https://www.dallasnews.com/business/2020/08/01/how-a-tesla-engineer-redesigned-the-chocolate-chip/

Turkish artist Selma Gürbüz
http://www.selmagurbuz.com/en/exhibitions

Motoi Yamamoto - salt artist, his labyrinths are especially geometrical
http://www.motoi.biz/english/e_top/e_top.html

Cherry Blossoms - digital artwork
https://www.facebook.com/100004340581678/videos/1692432724244731

Multiplication by drawing lines
https://youtu.be/bbKjXKV9QNA

Balance Goddess Miniature
https://www.etsy.com/listing/587099829/balance-goddess-miniatura

Geometry Links - July 23, 2020

The Mathematics of Neural Networks (Explained Visually)
https://youtu.be/e5xKayCBOeU

Origami LED Wall Art
https://imgur.com/t/staff_picks/UQuMJK5

Animation full of optical illusions
https://vimeo.com/430690235

Stellarium - night sky atlas, pick a night and track the Heavens moment by moment 
https://stellarium-web.org

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

Paula Pietranera origami and sumie
https://www.paulapietranera.com/portfolio/

Susan Hensel "Geometric Stitch” online show
https://susanhenselprojects.com/product-category/geoshow/?product_count=36

Origami Extravanganza! 
Foldeas: Sharing Ideas through Origami:  "Foldeas is a series of hands-on presentations, each one related–one way or another–to paper folding, by guest speakers from a wide variety of countries. They are cost-free, through the Zoom platform.   Gerardo has invited Leyla Torres (OrigamiSpirit) as the next guest speaker.  Leyla Torres has a wonderful website (https://www.origamispirit.com/) and many new folders have learned from her online videos. 
Saturday July 25, 11:00 - 1:00 pm (New York) / 4:00 - 6:00 pm (London) / 8:30 - 10:30 pm (New Delhi). Limited seating!

"48 Straight Hours of Folding with 48 world-class designers!   One workshop per hour!  It's all on Zoom and you will receive the recordings after the event (phew!).  The fee hasn't been posted yet but here's the link for registration (https://www.origami-shop.com/en/registration-origami-world-marathon-august-2223-2020-xml-2658_2678-11874.html) and 

"OrigamiUSA has a wonderful program on Zoom (with recording after the event) called OrigamiConnect (https://origamiusa.org/connect).  Every season there's a series of workshops available for $10 each.”
hat tip to Lucinda Davis

The life and work of Ruth Asawa
https://www.nytimes.com/2020/07/20/t-magazine/ruth-asawa.html

How curved edges affect the wrinkling of ultra-thin materials
https://scitechdaily.com/scientists-iron-out-the-physics-of-wrinkling/
https://aip.scitation.org/doi/10.1063/5.0006164