Clouds Are Not Spheres

This edition of Trigonometry includes such topics as radians, the special angles, right triangles, the Pythagorean Theorem, sine, cosine, tangent,...

Physics is a system of models of nature according to which all phenomena are explained in terms of matter and force. Sound confusing? It doesn't have...

The life of the Nobel Prize-winning mathematician and schizophrenic John Nash — the inspiration for the feature film A Beautiful Mind —...

This edition includes topics such as exponential functions, common log or base 10, rules of exponents, natural log or base e, applications of...

A documentary about the life and works of the artist M. C. Escher. Maurits Cornelis Escher (1898-1972) usually referred to as M. C. Escher, was a...

What is Bitcoin? With the advent of Bitcoin, the world's first digital currency, for the first time in history money is no longer controlled by banks...

Does infinity exist? Can we experience the Infinite? In an animated film (created by artists from 10 countries) the world's most cutting-edge...

A humor-inflected history of the of the number one, covering military applications in ancient Rome, the measurement of distances in India, and the...

Andrew Wiles stumbled across the world's greatest mathematical puzzle, Fermat's Theorem, as a ten-year-old schoolboy, beginning a 30-year quest with...

Exploring the murky and fast-paced world of the hackers out to steal money and identities and wreak havoc with people's online lives, and the...

A video by doctor John Hubbard discussing the origin, characteristics, and applications of the Mandelbrot set and other iterative sets.