Space-filling polyhedra | Polyhedra
In geometry, the Hill tetrahedra are a family of space-filling tetrahedra. They were discovered in 1896 by M. J. M. Hill, a professor of mathematics at the University College London, who showed that they are scissor-congruent to a cube. (Wikipedia).
How to construct a Tetrahedron
How the greeks constructed the first platonic solid: the regular tetrahedron. Source: Euclids Elements Book 13, Proposition 13. In geometry, a tetrahedron also known as a triangular pyramid, is a polyhedron composed of four triangular faces, six straight edges, and four vertex corners. Th
From playlist Platonic Solids
This shows a 3d print of a mathematical sculpture I produced using shapeways.com. This model is available at http://shpws.me/q0PF.
From playlist 3D printing
Unique way to divide a tetrahedron in half
This is an interesting geometry volume problem using tetrahedrons. We use the volume of a tetrahedron and Cavalieri's principle in 3D.
From playlist Platonic Solids
Cardboard Tetrahedron Pyramid Perfect Circle Solar How to make a pyramid out of cardboard
How to make a pyramid out of cardboard. A tetrahedron is a polyhedron composed of four triangular faces, three of which meet at each vertex.
From playlist HOME OF GREENPOWERSCIENCE SOLAR DIY PROJECTS
Platonic and Archimedean solids
Platonic solids: http://shpws.me/qPNS Archimedean solids: http://shpws.me/qPNV
From playlist 3D printing
What is the difference between convex and concave
👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
Synthesis Workshop: SĂntesis del Anhidroryanodol (Episodio 38)
En este episodio, exploramos la sĂntesis del anhidroryanodol (Grupo Micalizio, 2020) en español. Parent reference: J. Am. Chem. Soc. 2020, 142, 12937-12941. Other references (in order of appearance): For isolation, see: (a) J. Am. Chem. Soc. 1948, 70, 3086-3088. (b) Phytochemistry 1993, 3
From playlist Episodios en Español
En este episodio, vemos la sĂntesis del Tafluprost del grupo Fletcher (2020) en español. Parent reference: Org. Lett. 2020, 22, 2991-2994. Other references (in order of appearance): For a review of asymmetric approaches to prostaglandins, see Org. Biomol. Chem. 2017, 15, 6281-6301. For a
From playlist Episodios en Español
Lecture 17: Discrete Curvature II (Discrete Differential Geometry)
Full playlist: https://www.youtube.com/playlist?list=PL9_jI1bdZmz0hIrNCMQW1YmZysAiIYSSS For more information see http://geometry.cs.cmu.edu/ddg
From playlist Discrete Differential Geometry - CMU 15-458/858
👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
Synthesis Workshop: Diastereoselective Conjugate Additions with Michael Liang (Episode 19)
In this Research Spotlight episode, Michael Liang (PhD student, Meek group, UNC Chapel Hill) joins us to discuss his recently published work on the diastereoselective conjugate addition of boron-stabilized allylic nucleophiles. Parent reference: J. Am. Chem. Soc. 2020, 142, 9925-9931. Ot
From playlist Research Spotlights
Too Many Triangles - Numberphile
How many triangles are too many? Featuring Henry Segerman from Oklahoma State University. More links & stuff in full description below ↓↓↓ Check Henry's book about 3D printing math: http://amzn.to/2cWhY3R More Henry videos: http://bit.ly/Segerman_Videos Henry's hinged doilies were joint
From playlist Triangles on Numberphile
What are four types of polygons
👉 Learn about polygons and how to classify them. A polygon is a plane shape bounded by a finite chain of straight lines. A polygon can be concave or convex and it can also be regular or irregular. A concave polygon is a polygon in which at least one of its interior angles is greater than 1
From playlist Classify Polygons
Jianwei John Miao - Computational Microscopy: Coherent Diffractive Imaging to Electron Tomography
Recorded 10 October 2022. Jianwei (John) Miao of the University of California, Los Angeles, presents "Computational Microscopy: From Coherent Diffractive Imaging to Atomic Electron Tomography" at IPAM's Diffractive Imaging with Phase Retrieval Workshop. Learn more online at: http://www.ipa
From playlist 2022 Diffractive Imaging with Phase Retrieval - - Computational Microscopy
Jessica Sklar - Mathematical Art Inspirations, Instantiations, and Installations - CoM Feb 2022
During 2020, while the world shut down, creativity flourished. Choral groups sang over Zoom, friends attended virtual cocktail hours, and mathematicians and artists spent their lockdown hours knitting, painting, and constructing wonders. In this talk, I’ll show and discuss pieces by QED A
From playlist Celebration of Mind
Synthesis Workshop: Synthesis of Acridinium Photoredox Catalysts with Dr. Alex White (Episode 67)
In this Research Spotlight episode, Dr. Alex White takes us through his work on the synthesis of acridinium dyes for photoredox catalysis. This episode has been made possible through a collaboration with Thieme Chemistry (Twitter: @thiemechemistry) and is made in recognition of Prof. Dave
From playlist Research Spotlights
2003 AIME II problem 4 (part 1) | Math for fun and glory | Khan Academy
Created by Sal Khan. Watch the next lesson: https://www.khanacademy.org/math/math-for-fun-and-glory/aime/2003-aime/v/2003-aime-ii-problem-4-part-2?utm_source=YT&utm_medium=Desc&utm_campaign=mathforfunandglory Missed the previous lesson? https://www.khanacademy.org/math/math-for-fun-and-g
From playlist AIME | Math for fun and glory | Khan Academy
Finding the volume and surface area of a pyramid with a rectangular base
👉 Learn how to find the volume and the surface area of a pyramid. A pyramid is a 3-dimensional object having a polygon as its base and triangular surfaces converging at a single point called its apex. A pyramid derives its name from the shape of its base, i.e. a pyramid with a triangular b
From playlist Volume and Surface Area
Psych9B. Psychology Fundamentals. Lecture 10
UCI Psych 9B: Psych Fundamentals (Fall 2015) Lec 10. Psych Fundamentals View the complete course: http://ocw.uci.edu/courses/psych_9bpsy_beh_11b_psychology_fundamentals.html Instructor: Mark Steyvers, Ph.D. License: Creative Commons CC-BY-SA Terms of Use: http://ocw.uci.edu/info. More cou
From playlist Psych 9B: Psych Fundamentals