To tell the truth there is no dark side of the moon. Even though we always see the same side of the moon it doesn't mean that the other side always stays in the dark. People say to mystify the moon that 'It has the dark side which we will never see.'
'We will never see' part is true from the perspective of a person who is on earths surface but the 'Dark side' part is a pure myth. Moons other side does not always stays dark. But why we can see only one side of the moon from earth? It's because the speed at which moon rotates has led to this particular phenomenon. Millions of years ago moons rotational speed was much faster but the gravitational influence of the earth slowed it down much like moons gravity effects the tides in the ocean.
This influence led to slowed rotation period of of the moon to match that of its orbit which is 27.3 days. Lets say if the moon didn't spin at all then it would have eventually shown its other side to the earth while moving around earth in orbit. But since moons rotational period is exactly the same as the orbital period, the same portion of the moons sphere is always visible to earthlings.
Thank vipin to guide me...... and all the visitors of ur blog...
ReplyDeleteYou severed lot of knowledgeable thinks to us..
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