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The Kalahari is the ancestral land of the Bushmen or San peoples (read more)
Nicolaus Copernicus (February 19, 1473 – May 24, 1543) was one of the great polymaths of his age. He was a mathematician, astronomer, jurist, physician, classical scholar, governor, administrator, diplomat, economist, and soldier. Amid his extensive accomplishments, he treated astronomy as an avocation. But it is for his work in astronomy and cosmology that he has been remembered and accorded a place as one of the most important scientific figures in human history. He provided the first modern formulation of a heliocentric (Sun-centered) theory of the solar system in his epochal book, De revolutionibus orbium coelestium (On the Revolutions of the Heavenly Spheres). That change, often known as the Copernican revolution, had important and far-reaching implications for not only science and cosmology but also theology, philosophy, and culture, and for the relationship between religion and science. Copernicus' concept marked a scientific revolution. Some equate it with the initiation of "the scientific revolution.
Popular Article: Coffee
Coffee is a beverage, usually served hot, prepared from the roasted seeds of the coffee plant. These seeds are almost always called coffee beans, even though they are technically not beans.
Coffee has significant impacts on the economy, has possible health benefits, is featured at many social functions, has important environmental implications depending on how it is grown, and it has been at the forefront of fair trade programs. Coffee ranks as one of the world's major commodity crops and is the major export product of some countries. In fact, coffee ranks second only to petroleum in terms of legally-traded products worldwide.