Topography refers to how physical features of a places such as mountains, hills,valleys and plains are distributed in a certain place. These affects how population of a place will be distributed. ... Relief affects a topography of place this will lead to poor distribution of population in some areas.
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Newton discovered the first great unification in physics. He postulated that the laws of physics on earth also apply in the cosmos.
Put simply, he realized that the moon stayed in orbit due to the same laws that describe motion on earth.
This was simply a brilliant realization.
While he did develop the universal law of gravitation, he was, by no means, the first to study gravitation.