Greek philosopher and mathematician, Plato, dictated that the circle was the perfect form for celestial movement. So, then for the next one-and-a-half millennia, astronomers said that the planetary orbits were circular even though their observational data suggested otherwise.
Even Copernicus utilised circles in his heliocentric model, explaining the universe and its relationship to the planets. Finally, it was the German mathematician and astronomer, Johannes Kepler who described the…Continue
Added by Ric Willmot on August 9, 2011 at 10:08 — No Comments