Spiral similarity is a plane transformation in mathematics composed of a rotation and a dilation. It is used widely in Euclidean geometry to facilitate the proofs of many theorems and other results in geometry, especially in mathematical competitions and Olympiads. Though the origin of this idea is not known, it was documented in 1967 by Coxeter in his book Geometry Revisited. (Wikipedia).
This video introduces similarity and explains how to determine if two figures are similar or not. http://mathispower4u.com
From playlist Number Sense - Decimals, Percents, and Ratios
Similarity And Congruence: Similar Triangle in Triangle (Find Smaller) (Grade 5) - Maths Revision
Topic: Similarity And Congruence: Similar Triangle in Triangle (Find Smaller) Do this paper online for free: https://www.onmaths.com/similarity-and-congruence/ Grade: 5 This question appears on calculator higher and foundation GCSE papers. Practise and revise with OnMaths. Go to onmaths.c
From playlist Similarity And Congruence
Labeling corresponding parts and proportions of sides of similar figures
Learn how to solve with similar polygons. Two polygons are said to be similar if the corresponding angles are congruent (equal). When two polygons are similar the corresponding sides are proportional. Knowledge of the length of the sides or the proportion of the side lengths of one of the
From playlist Similar Polygons
Similarity And Congruence: Similar Triangle in Triangle (Find Larger) (Grade 5) - Maths Revision
Topic: Similarity And Congruence: Similar Triangle in Triangle (Find Larger) Do this paper online for free: https://www.onmaths.com/similarity-and-congruence/ Grade: 5 This question appears on calculator higher and foundation GCSE papers. Practise and revise with OnMaths. Go to onmaths.co
From playlist Similarity And Congruence
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides are proportional. Knowledge of the length of the side
From playlist Similar Triangles
What is the similarity of triangles for SSS
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides are proportional. Knowledge of the length of the side
From playlist Similar Triangles
👉 Learn how to define angle relationships. Knowledge of the relationships between angles can help in determining the value of a given angle. The various angle relationships include: vertical angles, adjacent angles, complementary angles, supplementary angles, linear pairs, etc. Vertical a
From playlist Angle Relationships
Similar Triangles Using Side-Side-Side and Side-Angle-Side
This video explains how to determine if two triangles are similar using SSS and SAS. Complete Video List: http://www.mathispower4u.yolasite.com
From playlist Similarity
Geometry - How to show two triangles are similar using AA with parallel sides
👉 Learn how to solve with similar triangles. Two triangles are said to be similar if the corresponding angles are congruent (equal). Note that two triangles are similar does not imply that the length of the sides are equal but the sides are proportional. Knowledge of the length of the side
From playlist Similar Triangles
Milky Way Galaxy Has a Massive Feather Structure That Was Just Found
Good telescope that I've used to learn the basics: https://amzn.to/35r1jAk Get a Wonderful Person shirt: https://teespring.com/stores/whatdamath Alternatively, PayPal donations can be sent here: http://paypal.me/whatdamath Hello and welcome! My name is Anton and in this video, we will tal
From playlist The Milky Way
The Fibonacci spiral | Lecture 15 | Fibonacci Numbers and the Golden Ratio
How to construct a Fibonacci spiral. Join me on Coursera: https://www.coursera.org/learn/fibonacci Lecture notes at http://www.math.ust.hk/~machas/fibonacci.pdf Subscribe to my channel: http://www.youtube.com/user/jchasnov?sub_confirmation=1
From playlist Fibonacci Numbers and the Golden Ratio
The Archimedean Spiral | Visually Explained (animation code also explained)
This is a video explaining what is so extraordinary about Archimedes, and the geometric things he did back in the BC. This is a partial explanation of the topic, and a partially explaining the code. Timecodes: 0:00 - Intro 0:11 - Archimedean Spirals 3:40 - The Exhaustion Method 5:38 - Ma
From playlist ManimCE Tutorials 2021
Colliding spirals in the Rock-Paper-Scissors equation 2: norms of gradient and vorticity
I'm still fascinated by the motion of spirals in the Rock-Paper-Scissors reaction-diffusion equation with increasing viscosity (which is the constant multiplying the Laplace operator). Increasing the viscosity has the effect of increasing the typical width of spirals, inducing a kind of co
From playlist Reaction-diffusion equations
Gamma-ray emitting NLSy1 galaxies by C. S. Stalin
Extragalactic Relativistic Jets: Cause and Effect PROGRAM LINK: www.icts.res.in/program/ERG2015 DATES: Monday 12 Oct, 2015 - Tuesday 20 Oct, 2015 VENUE: Ramanujan Lecture Hall, ICTS Bangalore DESCRIPTION : Active Galactic Nuclei (AGN) are the luminous centers of galaxies that are belie
From playlist Extragalactic Relativistic Jets: Cause and Effect
I spent an entire summer to find these spirals #SoME1
This video was made for The Summer of Math Exposition. It's about the spirograph and the math of the spirals it creates. Code: https://github.com/sokolov-teach/spirograph Attributions for images: "Spirograph" by Alexei Kouprianov is licensed under CC BY 2.5 "Rose-rhodonea-curve" by Anon
From playlist Summer of Math Exposition Youtube Videos
Newly Found Super Spiral Galaxies Spin Too Fast to Exist
You can buy Universe Sandbox 2 game here: http://amzn.to/2yJqwU6 Hello and welcome! My name is Anton and in this video, we will talk about super spiral galaxies and their unusual properties recently discovered in this paper: https://iopscience.iop.org/article/10.3847/2041-8213/ab459e Sup
From playlist Galaxies, Quasars, Blazars
Colliding vortices in the Rock-Paper-Scissors reaction-diffusion equation
This simulation shows another solution of the Rock-Paper-Scissors reaction-diffusion equation, similar to the one shown in videos such as https://youtu.be/TORwMc2AaRE , but with two different color schemes which make the spirals more visible. In addition, the "viscosity" parameter, which i
From playlist Reaction-diffusion equations
Similarity And Congruence: Simple Similar Triangle in Triangle (Grade 5) - GCSE Maths Revision
Topic: Similarity And Congruence: Simple Similar Triangle in Triangle Do this paper online for free: https://www.onmaths.com/similarity-and-congruence/ Grade: 5 This question appears on calculator higher and foundation GCSE papers. Practise and revise with OnMaths. Go to onmaths.com for m
From playlist Similarity And Congruence
Why do prime numbers make these spirals? | Dirichlet’s theorem, pi approximations, and more
A curious pattern, approximations for pi, and prime distributions. Help fund future projects: https://www.patreon.com/3blue1brown An equally valuable form of support is to simply share some of the videos. Special thanks to these supporters: http://3b1b.co/spiral-thanks Based on this Math
From playlist Neat proofs/perspectives