I spent an entire summer to find these spirals #SoME1 Sort of School 2021-08-20 | This video was made for The Summer of Math Exposition. It's about the spirograph and the math of the spirals it creates.Code:github.com/sokolov-teach/spirographAttributions for images:"Spirograph" by Alexei Kouprianov is licensed under CC BY 2.5"Rose-rhodonea-curve" by AnonMoos is in public domain“Guido Grandi” is in public domain“A Rose is a Rose…” by Peter M. Maurer is licensed under CC BY-NC-SA 3.0All music is licensed under Youtube Music Library License:“No.8 Requiem” by Esther Abrami “Brass Chorale” by Sir Cubworth“Rene's Song” by Loopop“The Plan's Working” by Cooper Cannel“Sprightly Pursuit” by Cooper Cannell“Allégro” by Emmit Fenn“No.10 A New Beginning” by Esther Abrami
QR codes and why Russians are afraid of them #SoME3 Sort of School 2023-08-17 | Video entry for the SoME3 competition. Special thanks to Tatiana Pyanykh and Tahmidt for the script review.CONTACTS--------------------------------------------------- Site: sortofschool.orgTwitter: twitter.com/sortofschoolInstagram: instagram.com/sortofschoolGithub: github.com/sokolov-teachE-mail: sokolov.teach@gmail.comPATREON: patreon.com/sortofschoolADDITIONAL RESOURCES--------------------------------------------------- Error Correction Coding in Galois fields by Thonky:thonky.com/qr-code-tutorial/error-correction-codingFormat and Version Information Encoding by Thonky:thonky.com/qr-code-tutorial/format-version-informationReed-Solomon Error Correcting Codes from the Bottom Up by tomverbeure:tomverbeure.github.io/2022/08/07/Reed-Solomon.htmlWhat are Reed-Solomon Codes by vcubingx:youtube.com/watch?v=1pQJkt7-R4QIMAGE ATTRIBUTION---------------------------------------------------shop cart by Kristina Margaryan from Noun Project (CC BY 3.0)thenounproject.com/icon/shop-cart-2536505Restaurant by Manaqib S from Noun Project (CC BY 3.0)thenounproject.com/icon/restaurant-1721649Bus by Chanut is Industries from Noun Project (CC BY 3.0)thenounproject.com/icon/bus-1106092Document by Rokhman Kharis from Noun Project (CC BY 3.0)thenounproject.com/icon/document-5874836B Escorial 108v.jpg by Real Biblioteca de San Lorenzo (Public Domain)bull by CAMB from Noun Project (CC BY 3.0)thenounproject.com/icon/bull-4212169Book of Revelation by King James (Public Domain)Godot logo (CC BY 4.0)Python Logo (PSF Trademark Usage Policy)The style of the video was inspired by "The First Video Game by Ahoy."youtube.com/watch?v=uHQ4WCU1WQcAUDIO ATTRIBUTION---------------------------------------------------Roundup on the Prairie by Aaron Kenny (YouTube Audio Library License)Church Bell Celebration by Doug Maxwell (YouTube Audio Library License)Dramatic Swarm by Doug Maxwell (YouTube Audio Library License)Lost In Prayer by Doug Maxwell (YouTube Audio Library License)Wild Fires by Doug Maxwell (YouTube Audio Library License)Length of Light by Amulets(YouTube Audio Library License)The Curious Kitten by Aaron Kenny (YouTube Audio Library License)No.7 Alone With My Thoughts by Esther Abrami (YouTube Audio Library License)Un Requited Love by Sir Cubworth (YouTube Audio Library License)The Plan's Working by Cooper Cannell (YouTube Audio Library License)Frozen Star Kevin MacLeod (incompetech.com) (CC BY 3.0)Americana - Aspiring by Kevin MacLeod (incompetech.com) (CC BY 4.0)Screaming Hawk by PsychoBird (CC BY 3.0)CHAPTERS---------------------------------------------------0:00 Intro1:15 Wild comment section2:24 Book of Revelation3:38 Basic patterns5:58 Modes of encoding6:29 Byte mode10:49 Numeric mode12:50 Alphanumeric mode14:50 Error Correction Level16:00 Pad characters18:50 Reed-Solomon error correction22:43 Reed-Solomon in Galois Fields25:56 Masks28:50 Format bits32:17 Conclusion
