Cliff Stoll hosted at his home and Klein Bottle warehouse.
Participants were given a tour of the Klein Bottle warehouse and warehouse robot.
He also shared a number of his various mathematical amendments to his home as well as an assortment of mathematical blown glass artwork.
Jacob Rus presented his work on some delightful images that result from accumulations of floating point errors. His “Non-robust arithmetic gallery” can be seen here: https://observablehq.com/@jrus/non-robust-arithmetic-gallery This work has since been made into actual fabric with the help and advice of Stacy Speyer, so hopefully we will all get to see at the next meeting.
Nan Ma presented his new website about regular star polytopes: http://nan.ma/star During the walk-through of several webpages with many images and animations, he shared the interesting fact that when you explode cells of the star polytope, the Grand 120-cell to a specific distance, they form the convex 120-cell.
Stacy Speyer brought some examples of her woven balls for show and tell, and Stan Isaacs brought an assortment of puzzles.
Additional images from this meeting can be found here: https://photos.google.com/share/AF1QipNmJSKkQAAwLaSHDm7RO8rgk5AQgbAJPaQRdivEvk3AHlNFP_lEdY1abhhDQ7UobQ?key=cmxtcFRnQk44d1VOa195WUlnaC1aT1cxbXRLVlJ3
Scott Vorthmann organized a build of a zometool “bucky-bone” to start off the meeting. The “bucky-bone” is a model of two C80 bucky balls connected by a carbon nanotube. You can read more about this model here: https://observablehq.com/@vorth/bucky-bone
Following this, several people shared recent projects. Gwen Fisher taught about her process creating mathematical artwork with colored pencils, and allowed us to try them out. Bruce Puckett gave us a tour of his beautiful mathematical art, all coded in Java, I believe. Stacy Speyer shared her hepta-hexaflexagon project, and Stan Isaacs shared the rolling shapes he acquired from MoMath.
Thank you to all who attended, and thank you to the well-wishers who could not!