I am learning about the history and evolution of certain physics theories, one being Newtons corpuscular theory.
I am reading that Newton predicted the corpuscles, which make up light would travel faster in a denser medium.
- I am a little confused as to why this would be predicted.?
I would have thought that as Newton thought that light was made of particles, when entering a denser medium, the light particles would travel slower, as they encounter/ collide with more particles in the denser medium which are inhibiting the flow of the corpuscles, therefore reducing the velocity light as a whole?
I am not quite sure why Newton would not have predicted this.
It may be that i am not understanding the textbook properly:
2.~This is what it says: 'Refraction worked if the corpuscles travel faster in a denser medium'. Before this point it also says that light was known to refract, so surely if physicists were aware of refraction of light, they where aware of the true nature of how light behaves, when entering a denser medium?
I am finding this to be a little confusing?