Quote (card_sultan @ Jan 10 2017 03:41pm)
right, so its not the water itself that refracts the light , its the changing of the density the light is traveling though, if the water itself was refracting the light - it would keep refracting as it traveled through the water.
Refraction, by definition, is the bending of light when it passes through mediums of varying density. There's no such thing as "refracting as it travels through water", it's nonsensical. Saying "water doesn't refract light" means you either don't know the properties of water or you don't know the definition of "refract".
Also, you said that glass refracts light but water doesn't. Does that mean that light keeps refracting as it travels through glass?