Louis de Broglie Biography

French Scientist Known for Particle-Wave Duality Theory Brief biography of Louis de Broglie who discovered the wave nature of electrons that established the wave-particle dualism....

Who invented OLAP Cube?

OLAP (online analytical processing) Cube An olap cube, or “online analytical processing” (OLAP) is a specially designed computer database which is designed to contain a...

Female Winners of The Nobel Prize

Two years after the Nobel Foundation was established in 1901, a Nobel Prize was awarded to Marie Curie in Physics for the first time in 1903. It’s a...

Who invented the Toothpaste?

The history of toothpaste is indeed very old. The earliest toothpaste use was recorded some time in 300 to 500 BC in China and India....

Ptolemy and Geography

The Ancient Greek Ptolemaic Geographical System Ptolemy’s geography contained many errors, but it also pioneered many concepts that we still use today. Ptolemy Ptolemy (aka Claudius...

Understanding Speed and Velocity

Fundamental Quantities Crucial to Understanding Physics of Motion Speed and velocity are fundamental quantities needed to understand the physics of motion. They have precise meanings...

Who was George Pullman

The Creator of Luxurious Train Carriages In the 19th century Pullman improved rail travel with comfortable railroad cars. He began with sleepers, expanded from there...

Aristotle: Facts, Timeline, Quotes, and Resources

The beginnings of modern thought, science and philosophy are generally agreed to have sprung from ancient Greece. Greece produced many prominent thinkers, scientists and philosophers. Three in particular are...