In geometry, the octagonal antiprism is the 6th in an infinite set of antiprisms formed by an even-numbered sequence of triangle sides closed by two polygon caps. Antiprisms are similar to prisms except the bases are twisted relative to each other, and that the side faces are triangles, rather than quadrilaterals. In the case of a regular 8-sided base, one usually considers the case where its copy is twisted by an angle 180°/n. Extra regularity is obtained by the line connecting the base centers being perpendicular to the base planes, making it a right antiprism. As faces, it has the two n-gonal bases and, connecting those bases, 2n isosceles triangles. If faces are all regular, it is a semiregular polyhedron. (Wikipedia).
AWESOME antigravity electromagnetic levitator (explaining simply)
Physics levitron (science experiments)
From playlist ELECTROMAGNETISM
Can you give a feel for how the math of General Relativity allows for anti-gravity?
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From playlist Science Unplugged: General Relativity
AWESOME Antigravity experiment! Levitron!
I show an interesting commercially available toy that is the highest magnetic levitation device we've seen so far.
From playlist MAGNETISM
Electromagnetic induction and Antigravity!!!
Physics demonstrations (la physique)!!!
From playlist physics
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
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From playlist Science Unplugged: General Relativity
The Antimatter Drive - Music Composition
My website: http://oliverlugg.com/ One of the members of Revolutionary Games commissioned me to compose a piece of music centred around the theme of space. Here it is - The Antimatter Drive. IMAGE: Adrian Mann
From playlist Music Compositions
Alan Chan's Masterpiece about Space Exploration and the Space Elevator
From playlist The Best of Futurism on YouTube
Incredibly hard geometry problem from Russia
This challenging problem was given to students in Russia, but it stumped me! The question was presented as text only--no diagram. Also, the problem was part of an entrance exam for a selective high school. Can you solve it? From each corner of a parallelogram, draw two line segments to con
From playlist Math Puzzles, Riddles And Brain Teasers
How Many Faces, Edges And Vertices Does A Octagonal Prism Have?
How Many Faces, Edges And Vertices Does A Octagonal Prism Have? Here we’ll look at how to work out the faces, edges of vertices of an octagonal prism. We’ll start by counting the faces, these are the flat surfaces that make the 3D shape. An octagonal prism has 10 faces altogether - 2 o
From playlist Faces, edges and Vertices of 3D shapes
SQUARE TO OCTAGON convert the easy way 0.41421 online calculator
Making an octagon is is very easy if you start with a true square. Simply multiply your WIDTH (x) 0.41421 and that is your edge length. Here is the rest of my formula. http://www.greenpowerscience.com/OCTAGONCAL.html 0.41421 = EDGE LENGTH 0.29291 = PUP LENGTH 0.54119 = OCTAGON CENTER Squ
From playlist Woodworking like a Boss
Corinna Ulcigrai - 4/6 Parabolic dynamics and renormalization: an introduction
Parabolic dynamical systems are mathematical models of the many phenomena which display a "slow" form of chaotic evolution, in the sense that nearby trajectories diverge polynomially in time. In contrast with hyperbolic and elliptic dynamical systems, there is no general theory which desc
From playlist Corinna Ulcigrai - Parabolic dynamics and renormalization: an introduction
Random Covers of Hyperbolic Surfaces (Lecture 2) by Doron Puder
PROGRAM: PROBABILISTIC METHODS IN NEGATIVE CURVATURE ORGANIZERS: Riddhipratim Basu (ICTS - TIFR, India), Anish Ghosh (TIFR, Mumbai, India), Subhajit Goswami (TIFR, Mumbai, India) and Mahan M J (TIFR, Mumbai, India) DATE & TIME: 27 February 2023 to 10 March 2023 VENUE: Madhava Lecture Hall
From playlist PROBABILISTIC METHODS IN NEGATIVE CURVATURE - 2023
2013 AMC 10 A #25 | AMC 10 | Math for fun and glory | Khan Academy
Video by Art of Problem Solving. Problem from the MAA American Mathematics Competitions. Created by Art of Problem Solving. Watch the next lesson: https://www.khanacademy.org/math/math-for-fun-and-glory/aime/2003-aime/v/2003-aime-ii-problem-1?utm_source=YT&utm_medium=Desc&utm_campaign=ma
From playlist AMC 10 | Math for fun and glory | Khan Academy
The area of a most special octagon.
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From playlist Geometry
Random Covers of Hyperbolic Surfaces (Lecture 4) by Doron Puder
PROGRAM: PROBABILISTIC METHODS IN NEGATIVE CURVATURE ORGANIZERS: Riddhipratim Basu (ICTS - TIFR, India), Anish Ghosh (TIFR, Mumbai, India), Subhajit Goswami (TIFR, Mumbai, India) and Mahan M J (TIFR, Mumbai, India) DATE & TIME: 27 February 2023 to 10 March 2023 VENUE: Madhava Lecture Hall
From playlist PROBABILISTIC METHODS IN NEGATIVE CURVATURE - 2023
AWESOME Electromagnetic force oscillation!!!
In this video i show electromagnetic force oscillation on a ruler. Also i demonstrate the standing wave on a ruler!
From playlist ELECTROMAGNETISM
AlgTop21: The two-holed torus and 3-crosscaps surface
We describe how the two-holed torus and the 3-crosscaps surface can be given hyperbolic geometric structure. For the two-holed torus we cut it into 4 hexagons and then describe a tesselation of the hyperbolic plane (using the Beltrami Poincare model described in the previous lecture) compo
From playlist Algebraic Topology: a beginner's course - N J Wildberger