Math

Intersecting Chord Theorem

This video sets out a puzzle that uses the intersecting chord theorem to solve. Which led me to a couple of basic geometric properties that I did not explicitly know. Wikipedia:Intersecting Chord Theorem Wikipedia: Inscribed Angle  

By Fudgy McFarlen, ago
History

Freeman Dyson – Web of Stories – Life Stories of Remarkable People

American-British physicist and mathematician, Freeman Dyson, was born in 1923. He is known for his achievements in solid state physics, nuclear engineering and quantum field theory. Interview PlayList 157 videos Research Links Cours d'analyse de l'EĢcole polytechnique An Elementary Treatise On Differential Equations by Piaggio,H.T.H. The Quantum Theory Of Radiation Read more…

By Fudgy McFarlen, ago
Math

Reason for using Base 60 or 360 for Angles

Babylonian Triangle Table Research Links Wikipedia: Plimpton 322 Tablet Forget trigonometry, 'cos Babylonians did it better 3,700 years ago – by counting in base 60! Ancient Babylonian use of the Pythagorean Theorem and its Three Dimensions 60 is divisible by 1,2,3,4,5,6  leading to triangle calculations that results in divisions with Read more…

By Fudgy McFarlen, ago