In geometry, the great triakis octahedron is the dual of the stellated truncated hexahedron (U19). It has 24 intersecting isosceles triangle faces. Part of each triangle lies within the solid, hence is invisible in solid models. (Wikipedia).
From playlist Trigonometry TikToks
Trigonometry for Beginners || Trigonometry Basics
Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of triangles. This math video tutorial provides a basic introduction into #trigonometry. It covers trigonometric functions, ratios such as sine, cosine, and tangent, converting polar coordin
From playlist Trigonometry
Arctan(1) + Arctan(2) + Arctan(3) = π
From playlist Trigonometry TikToks
Trigonometry full course for Beginners
Trigonometry is a branch of mathematics that studies relationships between side lengths and angles of #triangles. Throughout history, #trigonometry has been applied in areas such as geodesy, surveying, celestial mechanics, and navigation. Trigonometry is known for its many identities, whic
From playlist Trigonometry
Journée de la Revue d’histoire des mathématiques - Veronica Gavagna - 01/12/17
Journée de la Revue d’histoire des mathématiques (séance préparée par la rédaction de la RHM) Veronica Gavagna (Università degli Studi di Firenze), « Studies on regular polyhedra in the Renaissance: the case of Francesco Maurolico » ---------------------------------- Vous pouvez nous re
From playlist Séminaire d'Histoire des Mathématiques
Math Mornings at Yale: Asher Auel - Wallpaper, Platonic Solids, and Symmetry
The Platonic solids-the tetrahedron, cube, octahedron, dodecahedron, and icosahedron-are some of the most beautiful and symmetric geometrical objects in 3-dimensional space. Their mysteries started to be unraveled by the ancient Greeks and still fascinate us today. In 1872, the German geom
From playlist Math Mornings at Yale
From playlist Trigonometry TikToks
Scott Kim - Motley Dissections - G4G13 April 2018
This talk discusses motley dissections — polygons cut into polygons and polyhedra cut into polyhedra such that no two pieces every completely share an edge or a face. The most famous motley dissection is the squared square. My contribution extends this to triangled triangles, pentagoned pe
From playlist G4G13 Videos
Thin Groups and Applications - Alex Kontorovich
Analysis and Beyond - Celebrating Jean Bourgain's Work and Impact May 21, 2016 More videos on http://video.ias.edu
From playlist Analysis and Beyond
Q&A - The Wondrous World of Perovskites - with Mike Glazer
Mike Glazer answers questions from the audience following his 2017 Bragg Lecture on Perovskites. Watch the lecture: https://www.youtube.com/watch?v=v9bMEUr2II4 Subscribe for regular science videos: http://bit.ly/RiSubscRibe The crystalline materials known as Perovskites make up 38% of the
From playlist Ri Talks
Trigonometry 2 The Trigonometric Functions
Meet the 6 main trigonometric functions of right triangles and some of their identities.
From playlist Trigonometry
Vanessa Robins (11/28/17): Persistence diagrams of bead packings
Uncovering grain-scale mechanisms that underlie the disorder-order transition in assemblies of granular materials is a fundamental problem with technological relevance. To date, the study of granular crystallization has mainly focussed on the symmetry of crystalline patterns while their em
From playlist AATRN 2017
From playlist Trigonometry TikToks
"Illustrating Geometry" exhibition at SCGP, Artist's talk: "Sculpture in four-dimensions"
Slides: http://www.math.okstate.edu/~segerman/talks/sculpture_in_4-dimensions.pdf This video is also available at the Simons Center website, at http://scgp.stonybrook.edu/archives/11540 Thanks to Josh Klein for filming and editing.
From playlist 3D printing
Moves 2022 conference talk: Variants of the 15-puzzle and the effects of holonomy
A talk I gave at the 2022 Moves conference in New York City.
From playlist Talks
Discussing h-vectors and the g-conjecture. Featuring June Huh from the Institute for Advanced Study at Princeton University. More links & stuff in full description below ↓↓↓ A little extra bit from this interview: https://youtu.be/cFKGX3vAs_Q Shapes in higher dimensions: https://youtu.b
From playlist Fields Medallists on Numberphile
This video shows how trigonometry is both interesting and useful. Its history, practical uses, place in mathematics and wide use are all covered. If you are wondering why you might want to learn trigonometry, start here!
From playlist Trigonometry
The Wondrous World of Perovskites - with Mike Glazer
In the 2017 Bragg Lecture, Mike Glazer unearths the vital world of perovskites, the crystalline materials that make up 38% of the Earth's volume. Q&A: https://www.youtube.com/watch?v=WsPBB6azzX4 Subscribe for regular science videos: http://bit.ly/RiSubscRibe The crystalline materials kno
From playlist Ri Talks