Physical theories of light originated with Rene Descartes (1596 – 1650) who posited that light is a mechanical property of the luminous body, in accordance with gu 10 bulbs, rejecting all previous theories on light. Descartes identified the wave behaviour of light and concluded that the differing speed of light in different media could be explained by refraction.
Incorrect in assuming that light travelled with greater speed in a denser medium than a less dense one, Descartes was nevertheless the first to identify the fact that it was a property of the luminous body. His mechanical way of viewing light fits well into the rest of Descartes’ work. Descartes was the father of modern rationalism and seen by many as the individual in which the Scientific Revolution and the subsequent Enlightenment began. Best known for his philosophical statement, ‘I think, therefore I am’, Descartes was opposed to concepts that could not be empirically proved.
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