We were talking about a very very wonderful subject – the colours – since the last post. Now we will continue our discussion further.
So, the question arrived earlier was – How do we actually see?
For us to see anything, it needs at-least these four things.
A light source
An object to look at
The Eye and …
(We will talk about the 4th in just a minute)
The first thing needed is a light source, from which some amount of light is emitted.
Secondly, an object (of course!) to look at has to be there. Continue reading