There always two opposite sides in our lifes. there are good things the opposite with bad things,
Right side with left, and also the bright and the dark.
But trully there are no a dark in the universe, Albert Einstein explained that there are no dark state, Dark is a state where there is no light. we can learns about the Light can be us learn, but do not the dark. We can use Newton's prism for solve light into several colors and study the various lengths wave for every color. But you can not measure the dark. How dark something is measured by how much light intensity in the room. The dark word used to describe the absence of light.
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