If lights is extremely fast and manages to get to the Sun to the Earth without getting darker. How come light can’t bounce off everything and manage to get into every crevice of Earth. Why are there shadows and why do they vary in shade? They should logically be the same shade right?
In: Physics
Think of light as the seven dwarfs, running in a straight/wave pattern. When they bounce off things goblins snatch up some of these dwarves. Depending on which ones are snatched up depends on the resulting colour.
The reason reason why shadows exist is because they are racing on an invisible course and this course is straight. Running from the source to a surface directly in front of it, at which point the goblins snatch up the dwarves. Now you may ask what happens with mirrors, mirrors are very shiny and as you know goblins like dark environments, so goblins can’t exist in mirrors and therefore no dwarves are snatched up and they all bounce off.
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