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Since the beginning of human kind there has been a cloud of wonder regarding the origin of our planet Scientist interested in this field through out the years have developed many different theories to how our planet came about Before the Twentieth Century scientist and geologist alike revolved in the idea that Mountain building was due to the massive contractions of the earth caused by the gradual cooling of molten rocks In 1900 American scientist Joseph Le Conte published an article in the Appletons Popular Scientific Monthly He described that the problem in understanding mountain building was establishing the cause of sideways pressure The most obvious and as yet the most probable view is that it is the result of the secular contraction of the earth which has gone on throughout the whole history and is still going on 2 It was not until 1910 that an American Geologist named FBTaylor proposed the idea of a continental drift His scientific peers dismissed Taylors idea because there was just not enough proof However Taylors idea was then resurfaced by a German scientist named Alfred Wegener He proposed that the continents surrounding the Atlantic Ocean Africa and South America fit together like a jigsaw puzzle Wegener was a balloonist astronomer explorer meteorologist while in his spare time he researched paleontology geophysics and geology His broad range of studies enabled him to incorporate his theory of Plate Tectonics Wegener later in 1915 while in sick leave from the German military published his idea that interpreted how his continental drift theory worked He proposed that a huge landamass called Pangea meaning all land existed 200 million years ago He furthered explained that this super continent began to drift apart very slowly throughout millions of years into what it looks like now Wegener went on several expeditions through out his life to the continents of South America and Africa He came back with evidence to support his claim of plate
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