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In mathematics and the arts, two quantities are in the golden ratio if the ratio between the sum of those quantities and the larger one is the same as the ratio between the larger one and the smaller. The golden ratio is an irrational mathematical constant, approximately 1.6180339887.[1]
Human calculators :)
To multiply any two numbers without using a calculator all you need is simple Arithmatic
A music video for Jonathan Coulton's song Mandelbrot Set by Pisut Wisessing made in Film 324: Cornell Summer Animation Workshop, taught by animator Lynn Tomlinson every summer for Cornell's summer session, in the department of Theatre, Film & Dance.
The sound track is a little bit strange but I liked the illusion especially when it suddenly changes and when he walks through the cube
Today's math curriculum is teaching students to expect -- and excel at -- paint-by-numbers classwork, robbing kids of a skill more important than solving problems: formulating them. At TEDxNYED, Dan Meyer shows classroom-tested math exercises that prompt students to stop and think.
Michael S. Schneider explains how the Ancient Egyptians (and Chinese) and modern computers multiply and divide
animated movie on the development of numbers
Euclid's book `The Elements' is the most famous and important mathematics book of all time. To begin to lay the foundations of geometry properly, we first have to make contact with Euclid's thinking. Here we look at the basic set-up of Definitions, Axioms and Postulates, and some of the highlights from Books I,II and III.
In 1991, a small Medieval prayer book was sold at auction. Miraculously, some original writings of Archimedes, the brilliant Greek mathematician, were discovered hidden beneath the religious text. Through scholarly detective work with the help of modern technology, this book now reveals Archimedes' stunningly original concepts, ideas, and theories—revelations that, if known sooner, might have reshaped our world.
