The Living Machine

We live in an extraordinary era of exploration. We are now able to reach far out into space and deep down into the ocean. We have the advantage with technology such as computers and satellites. We can now simply understand the dynamic forces that shape our Earth. Our Earth is constantly destructing and recreating. It balances through a continuous rebirth cycle. The Earth’s dynamic shape can be summed up very simply-Transfer Of Energy. This "Big Idea" helps to explain many things such as plate tectonics, ocean floor spreading, continental drift, volcanoes, earthquakes, just about everything that happens naturally on earth. Plate Tectonics links together Alfred Wegener’s theory of continental drift and Harry Hess’s theory of ocean floor spreading.

Alfred Wegener was a German meteorologist living in the first half of this century. He thought that long, long ago at one time all of the continents had been joined together as one gigantic land mass he called Pangaea. Finally after a long period of time the huge land mass had broken apart and slowly became what it is today and was believed to be still changing. Many scientists did not accept Wegener’s theory, but he kept on

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The plates will have one of the three types of plate boundaries.

It took about 400 billion years or so to create what we come to know now. This magma is constantly heating and cooling. The oldest rock on land is about 400 billion years old, while the oldest rock on the ocean floor is only about 200 million years old. This heating and cooling cycle is forming a circular motion or a convection current. Our Earth is constantly changing and it never rests.

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. This helped to support his idea even more then fitting the continents together like a puzzle. The ocean floor is being destroyed as fast as it is being created by ocean floor spreading.

The compelling evidence for continental drift and ocean floor spreading caused many of the old theories about the Earth to be forgotten. This convection current carries along the plate that floats on top of it causing the continents to move. Either the divergent, convergent, or strike-slip. Glossopteris fossils, which are found in rocks, were found in South America, Australia, India, and Antarctica.

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