The Tusi couple is a mathematical device in which a small circle rotates inside a larger circle twice the diameter of the smaller circle. Rotations of the circles cause a point on the circumference of the smaller circle to oscillate back and forth in linear motion along a diameter of the larger circle. The Tusi couple is a 2-cusped hypocycloid. The couple was first proposed by the 13th-century Persian astronomer and mathematician Nasir al-Din al-Tusi in his 1247 Tahrir al-Majisti (Commentary on the Almagest) as a solution for the latitudinal motion of the inferior planets, and later used extensively as a substitute for the equant introduced over a thousand years earlier in Ptolemy's Almagest. (Wikipedia).
Secrets of the NOTHING GRINDER
NEW (Christmas 2019). Two ways to support Mathologer Mathologer Patreon: https://www.patreon.com/mathologer Mathologer PayPal: paypal.me/mathologer (see the Patreon page for details) This video is the result of me obsessing about pinning down the ultimate explanation for what is going o
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Murat & Silvina in Modena Italy, Tipica Victor waltz.
After their workshops in Bologna Italy, Murat and Silvina were hosted at Circolo Gardel in Modena to improvise this dance.
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Couples Share the Happiness and Heartache of Interracial Marriage | National Geographic
In 2015, 17 percent of U.S. newlyweds had a spouse of a different race or ethnicity. That’s roughly a fivefold increase since 1967, when the U.S. Supreme Court’s ruling in Loving v. Virginia made interracial marriage legal. ➡ Subscribe: http://bit.ly/NatGeoSubscribe About National Geograp
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Murat Erdemsel & Sigrid Van Tilbeurgh - Vals
From playlist Tango
Murat Erdemsel & Sigrid van Tilbeurg, Vals performance, Tango Soul Festival
Wellington, NZ, 24/03/2018
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Epicycles, complex Fourier series and Homer Simpson's orbit
NEW (Christmas 2019). Two ways to support Mathologer Mathologer Patreon: https://www.patreon.com/mathologer Mathologer PayPal: paypal.me/mathologer (see the Patreon page for details) Today’s video was motivated by an amazing animation of a picture of Homer Simpson being drawn using epic
From playlist Fourier
Horner's Method (Ruffini-Horner Scheme) for evaluating polynomials including a brief history, examples, Ruffini's Rule with derivatives, and root finding using Newton-Horner. Example code on GitHub https://github.com/osveliz/numerical-veliz Chapters 0:00 Intro 0:11 - History 1:33 - TLDR 1
From playlist Root Finding
Tuxedo - Do It (Official Video)
Tuxedo is here, stay classy! Directed by Ross Harris and Henry DeMaio Produced by Jackson Perry Choreography by Micah Moch and Mia Orozco Featuring Isaac Tualaulelei http://tuxedofunk.com ©2014, Stones Throw Records
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The 3-4-7 miracle. Why is this one not super famous?
I got sidetracked again by a puzzling little mathematical miracle. And, as usual, I could not help myself and just had to figure it out. Here is the result of my efforts. 00:00 Intro 08:45 The Coin rotation paradox 16:00 Mystery number explanation 18:38 Challenges and the new book 19:53
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Euclid's puzzling parallel postulate - Jeff Dekofsky
View full lesson: http://ed.ted.com/lessons/euclid-s-puzzling-parallel-postulate-jeff-dekofsky Euclid, known as the "Father of Geometry," developed several of modern geometry's most enduring theorems--but what can we make of his mysterious fifth postulate, the parallel postulate? Jeff Dek
From playlist Even More TED-Ed Originals
Hard Geometry Problem - Contest In Switzerland
No calculators allowed! This is a pretty fun one to work out. Thanks to all patrons! Special thanks to: Ertugrul Oruç, Michael Anvari, Richard Ohnemus, Shrihari Puranik, Kyle. Subscribe: https://www.youtube.com/user/MindYourDecisions?sub_confirmation=1 Send me suggestions by email (addre
From playlist Math Puzzles, Riddles And Brain Teasers
PDT GyANDUu | Film no.1 - (WTF) Waat The Fart - Short Film Series : Arranged Marriage Meeting
https://www.facebook.com/puranidillit... Description - One of a kind marriage/matrimony date. They talk about marriage, career and life in a funny way. CREDIT - Purani Dili Talkies - PDT Company Email - puranidilitalkies@gmail.com Writers/Directors/Producer Rohit R Gaba Nijo Jonson CREDIT
From playlist Short Films
Scaling and Potentiality in Tipping Point Analysis by Valeria Livina
PROGRAM TIPPING POINTS IN COMPLEX SYSTEMS (HYBRID) ORGANIZERS: Partha Sharathi Dutta (IIT Ropar, India), Vishwesha Guttal (IISc, India), Mohit Kumar Jolly (IISc, India) and Sudipta Kumar Sinha (IIT Ropar, India) DATE: 19 September 2022 to 30 September 2022 VENUE: Ramanujan Lecture Hall an
From playlist TIPPING POINTS IN COMPLEX SYSTEMS (HYBRID, 2022)
Murat and Silvina in Modena Italy. Canaro, otoño
Murat and Silvina improvised this dance during the Saturday night milonga in Circolo Gardel milonga.
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Questions Nobody Asks My Fiance
When it comes to straight weddings, nobody asks the groom about changing his last name, monograms, tuxedo choices and other marriage-related inquiries that are nobody else's business. Share this on Facebook: http://on.fb.me/1AZeLU7 Share this on Twitter: http://ctt.ec/qACcM Subscribe: h
From playlist Everyday Stuff
Party Drugs (Full Episode) | To Catch a Smuggler
CBP looks out for party drugs, prostitutes and counterfeit goods entering Miami during Super Bowl. HSI tracks the case of a drug-filled car battery. ➡ Subscribe: http://bit.ly/NatGeoSubscribe ➡ Get more Nat Geo Full Episodes: https://youtube.com/playlist?list=PLivjPDlt6ApSiD2mk9Ngp-5dZ9C
From playlist Full Episodes | National Geographic
Philippe Bonneton: Nearshore hydrodynamics - Lecture 2
Recording during the meeting "CEMRACS 2019 - Geophysical Fluids and Gravity Flows" the July 16, 2019 at the Centre International de Rencontres Mathématiques (Marseille, France) Filmmaker: Guillaume Hennenfent Find this video and other talks given by worldwide mathematicians on CIRM's Aud
From playlist Mathematical Physics
Igor Shparlinski: Group structures of elliptic curves #2
Find this video and other talks given by worldwide mathematicians on CIRM's Audiovisual Mathematics Library: http://library.cirm-math.fr. And discover all its functionalities: - Chapter markers and keywords to watch the parts of your choice in the video - Videos enriched with abstracts, b
From playlist Jean-Morlet Chair - Shparlinski/Kohel
Fela Kuti (Nigeria, 1973) - Gentleman (Full Album)
From playlist World