John Philoponus

John Philoponus (c. 490 – c. 570 AD) was a Christian philosopher and scientist from Alexandria, Egypt. He is best known for his work in philosophy, particularly in the fields of natural philosophy and theology. Philoponus is often noted for his critiques of Aristotle's theories, especially in the areas of motion and cosmology. One of his significant contributions was his argument against the Aristotelian notion of the eternity of the world.