things of which there are the most in it". He introduced the concept of Nous (Cosmic Mind) as an ordering force, which moved and separated the original mixture, which was homogeneous, or nearly so. Anaxagoras brought philosophy and the spirit of scientific inquiry from Ionia to Athens. According to Anaxagoras, all things have existed in some way from the beginning, but originally they existed in infinitesimally small fragments of themselves, endless in number and inextricably combined throughout the universe. All things existed in this mass but in a confused and indistinguishable form. There was an infinite number of homogeneous parts () as well as heterogeneous ones. The work of arrangement, the segregation of like from unlike, and the summation of the whole into totals of the same name, was the work of Mind or Reason (). Mind is no less unlimited than the chaotic mass, but it stood pure and independent, a thing of finer texture, alike in all its manifestations and everywhere the same. This subtle agent, possessed of all knowledge and power, is especially seen ruling all life forms. Its first appearance, and the only manifestation of it which Anaxagoras describes, is Motion. It gave distinctness and reality to the aggregates of like parts. Decrease and growth represent a new aggregation () and disruption (). However, the original intermixture of things is never wholly overcome. Each thing contains parts of other things or heterogeneous elements and is what it is, only on account of the preponderance of certain homogeneous parts which constitute its character. Out of this process arise the things we see in this world. Astronomy Plutarch says "Anaxagoras is said to have predicted that if the heavenly bodies should be loosened by some slip or shake, one of them might be torn away, and might plunge and fall to earth." His observations of the celestial bodies and the fall of meteorites led him to form new theories of the universal order, and to the prediction of the impact of meteorites. According to Pliny, he was credited with predicting the fall of the meteorite in 467. He was the first to give a correct explanation of eclipses, and was both famous and notorious for his scientific theories, including the claims that the Sun is a mass of red-hot metal, that the Moon is earthy, and that the stars are fiery stones. He thought the Earth was flat