In music, 15 equal temperament, called 15-TET, 15-EDO, or 15-ET, is a tempered scale derived by dividing the octave into 15 equal steps (equal frequency ratios). Each step represents a frequency ratio of 15√2 (=2(1/15)), or 80 cents. Because 15 factors into 3 times 5, it can be seen as being made up of three scales of 5 equal divisions of the octave, each of which resembles the Slendro scale in Indonesian gamelan. 15 equal temperament is not a meantone system. (Wikipedia).
Factorial Notation (2 of 3: Formal definition)
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From playlist Working with Combinatorics
Factors and Primes: Product of Prime Factors (Grade 4) - OnMaths GCSE Maths Revision
Topic: Factors and Primes: Product of Prime Factors Do this paper online for free: https://www.onmaths.com/factors-and-primes/ Grade: 4 This question appears on non-calculator higher and foundation GCSE papers. Practise and revise with OnMaths. Go to onmaths.com for more resources, like p
From playlist Grade 4
Summer of Math Exposition 2022 - Mathematics and Music
"Better Late Than Never". I started taking Guitar lessons for the first time in my life in 2022. So I wanted to use Math to describe some musical concepts. This is a very rough draft and I wanted to share more but it's August 15th 2022. I created a slightly better video last year: h
From playlist Summer of Math Exposition 2 videos
This is a short video tutorial on equivalent ratios. ✤ ✤ ✤ INTERACTIVE APPLETS AND WORKSHEETS ✤ ✤ ✤ http://fearlessmath.net ✤ ✤ ✤ FOLLOW ME ON TWITTER ✤ ✤ ✤ http://twitter.com/dhabecker
From playlist All about ratios and proportions
Factors and Primes: Product of Prime Factors (Index Form) (Grade 4) - OnMaths GCSE Maths Revision
Topic: Factors and Primes: Product of Prime Factors (Index Form) Do this paper online for free: https://www.onmaths.com/factors-and-primes/ Grade: 4 This question appears on non-calculator higher and foundation GCSE papers. Practise and revise with OnMaths. Go to onmaths.com for more reso
From playlist Grade 4
The Mathematical Problem with Music, and How to Solve It
There is a serious mathematical problem with the tuning of musical instruments. A problem that even Galileo, Newton, and Euler tried to solve. This video is about this problem and about some of the ways to tackle it. It starts from the basic physics of sound, proves mathematically why s
From playlist Summer of Math Exposition 2 videos
Metauni event #3: Lucas Cantor presents Music @ Metaverse
Lucas spoke on the emerging role of AI in music, and how this brings into focus some of the arbitrariness about the way we construct music, using the example of equal temperament. There was a very interesting question and discussion period after the talk, which among other things touched o
From playlist Metauni
Ex 1: Determine Equivalent Fractions to a Given Fraction
This video provides an example of how to determine several equivalent fractions to a given fraction. Search Complete Library: http://www.mathispower4u.wordpress.com
From playlist Introduction to Fractions
How would one sum the factors of a number so immense as 11 factorial? 11! = 39916800 has 540 distinct positive factors, most of them very large. It turns out that, when cleverly arranged, the factors of 11! and any number in general lend themselves nicely to summation. In this video, I dem
From playlist Fun
Dividing Fractions (2 of 2: Introduction to Division of Fractions with some introductory examples)
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From playlist Fractions, Decimals and Percentages
The History, The Power and the Perspectives of Numerical Simulations of Spin... by Enzo Marinari
DISCUSSION MEETING : CELEBRATING THE SCIENCE OF GIORGIO PARISI (ONLINE) ORGANIZERS : Chandan Dasgupta (ICTS-TIFR, India), Abhishek Dhar (ICTS-TIFR, India), Smarajit Karmakar (TIFR-Hyderabad, India) and Samriddhi Sankar Ray (ICTS-TIFR, India) DATE : 15 December 2021 to 17 December 2021 VE
From playlist Celebrating the Science of Giorgio Parisi (ONLINE)
How Pythagoras Broke Music (and how we kind of fixed it)
How does music work? What did an Ancient Greek philosopher have to do with it? Why did he keep drowning people? Discover the answers to these questions and more as we take a tour through musical tuning systems, examining how the power of mathematics has helped us build and rebuild our met
From playlist Mathematics
17.5 Transverse Standing Waves
This video covers Section 17.5 of Cutnell & Johnson Physics 10e, by David Young and Shane Stadler, published by John Wiley and Sons. The lecture is part of the course General Physics - Life Sciences I and II, taught by Dr. Boyd F. Edwards at Utah State University. This video was produced
From playlist Lecture 17B. Linear Superposition and Interference Phenomena
NUMBERS: "i", the Number of Heaven | Five numbers that changed the world | Cool Math
NUMBERS - secrets of Math. Mathematics is shrouded behind a veil and does not easily reveal itself. Students resort to rote memorization of math formulas to solve problems in a boring exercise of the mind that is also repetitive. However, if you knew the history of mathematics, the way the
From playlist Civilization
Practice with inequalities and proportions
From playlist Middle School - Worked Examples
This Mona Lisa video has been updated, please see link below
This Mona Lisa video has been updated, please see: https://youtu.be/B06PK4yZwvY
From playlist Renaissance & Reformation in Europe | Art History | Khan Academy
Psych9B. Psychology Fundamentals. Lecture 15
UCI Psych 9B: Psych Fundamentals (Fall 2015) Lec 15. 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
Conversion Arcs and 2,916,485,648,612,232,232,816 (MegaFavNumbers)
I'm sorry. The MegaFavNumbers playlist: https://www.youtube.com/playlist?list=PLar4u0v66vIodqt3KSZPsYyuULD5meoAo
From playlist MegaFavNumbers
What Makes Us Who We Are? The Promise (and Perils) of Behavioral Genetics
Sponsored by the Poynter Fellowship in Journalism and Franke Program in Science and the Humanities. Why are some of us happier than others—or sadder, tougher, or friendlier? Why do some wither under stress while others survive mayhem? Drawing on research for his upcoming book, "The Orchi
From playlist Franke Program in Science and the Humanities