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| The formation history of the Earth |
Earth is a place of human life, animals, and plants. However, many people among us who do not know how the earth was formed. Earth has long existed before man, perhaps it is this which causes many of us, humans, who do not know the history of the earth. However, human beings have a mind and desire to know, trying to explain the history of the earth formation by his theories. There are various theories regarding the history of the formation of the earth. No one knows the truth of these theories, because indeed there is a good distance distansi time between the formation of Earth with the emergence of theories of proficiency level.
At the beginning of the formation, the earth was uninhabited. Since the Earth formed 4.6 billion years ago. However, at the time there were no living creatures that inhabit it. At that time the earth was a ball of fire that had aculation heat due to radioactive decay and gravitational contraction mikroit rain. History of life on Earth began about 3.5 billion new year with the advent of micro-organisms as simple as bacteria and algae. Then in one billion years ago has emerged multicellular organisms. At about 540 million years ago is gradually more complex life began to evolve.
Several theories on the history of the earth will be described briefly as follows.
1. The formation history of the Earth Big Bang Theory
This theory is the most famous theories in relation to the history of the earth. According to this theory, the Earth comes from the giant mist that rotates on its axis in billions of years ago. The turnover led to small parts are thrown out and a large part of the centralized form a giant round. Clumps of giant round fog finally exploded with a vengeance that then form the nebula, nebulae and galaxies. Nebula, the nebula is frozen and eventually form a galaxy, which we know as the Milky Way today. While the lumps are lightweight and telempar was eventually frozen out and form small planets, one of which is the earth.
2. The formation of the Earth's history Kant-Laplace theory of Fog
Knowledge about natural phenomena actually existed in BC. But only in the 18th century the experts think about the process of the Earth. Immanuel Kant (1755), a scientist and philosopher, and Pierre de Laplace (1796) had put forward his theory known as the theory of fog (nebula) Kant-Laplace.
Fog Kant-Laplace theory suggests that the history of the earth comes from the gas which then clump together and form a giant fog. The fog comes from the giant force of attraction between gas. then this giant fog has a very quick turnaround. Due to the center of rotation is thrown off the giant mist and cooling, which eventually freezes. Flung parts thus form the planets in the solar system, one of the world we live in is.
3. The theory of planetesimal formation of Earth's history
Planetesimal theory emerged a century later after the Kant-Laplace theory. This theory was initiated by Chamberlin and Moulton. In this theory revealed that in ancient times there is a sun that has been formed. Then there is a huge star is approaching the sun. Thus led to the withdrawal by the sun. Due to the withdrawal of the sun, then arises a huge blast. This caused an explosion of gas that comes out of the sun's atmosphere freezes and eventually condensed and called planetesimals. Earth is part of these planetesimals.
Various theories actually have similar views about the process of formation of the earth. These theories say that the Earth formed from gas that has a very hot temperature. Vulnerable due to a long time and a rotation of these objects very quickly, then decrease the heat to cool. This resulted in solidification.
4. The formation history of the Earth's Tidal Theory of Gases
In this theory proposed that the formation of Earth's history because of the tides in the body of the sun while it's still a gas. This tidal movement occurs because of the massive stars approaching the sun. Gravity of the star is close to the sun causes the appearance of mountains of waves in the body of the sun. The mountains will produce a very hot fire sparks.
Due to the extremely hot spark is there will be a sealing-sealing gas. And the mountains were going to burst and the fragments are formed the planets, including the olanet our earth. While the big star was approaching the sun continues to move around the universe, so the effect on the planets that formed was lost. Planets that have been formed earlier will revolve around the sun and mengelami cooling process. This cooling process will take place very slowly on planets that are large and will take place relatively rapidly on a small planet like Earth. The originator of this theory is Jeans and Jeffreys.
5. The theory of star formation history of the Earth's Twin
This theory was initiated by R.A Lyttleton. This theory suggests that the formation of Earth's history came from a meeting of the twin stars. Then, there was an explosion on one of the star. Fragments of the exploding star around stars that are still intact. This occurs because of the strong attractive force on the star was still intact, now known as the star of the sun and the fragments that have been exploding star is a planet that is in the solar system, one of which is the earth.
In addition to the above theories are still many more theories that explain the history of the earth. The experts tried to mengangkapkan ideas about the formation of Earth history. The experts among others, George Louis Comte de Buffon Leelere with his theory known as Theory of Buffon, C. Von Weizsaecker (Weizsaecker Theory, 1940), Gerald P. Kuiper (Kuiper Theory), Fred L. Whipple (Whipple Theory).
In the subsequent developments, there are natural processes that shape the earth, the natural processes of endogenous and exogenous. Brazilians is an endogenous process of change in earth processes from of power inside the earth. Like, an earthquake or earth surface subsidence caused by the shifting earth. Earth to travel a few centimeters each year. Exogenous natural processes is a power that comes from the outside world but it gives a huge influence on the earth. Exogenous force can cause changes in the relief face of the earth. Through sendimentation, erosion and weathering of motion capable of deforming the earth's surface. This power is one caused by human power.
Earth is a place, which can not be destroyed. The existence of natural processes, endogenous and exogenous able to affect the continued existence of the earth. Growth of living things on earth has a great influence for the existence of the earth. Because the creature (human) often do not realize that all the riches of the earth if taken continuously without regard to consequences, then one day this earth will be destroyed. So that we as human beings who occupy the earth, must keep the best of our earth, in order to avoid a change that could harm the earth and everything in it.
This is some blurb about the history of the earth according to some experts on its findings.
At the beginning of the formation, the earth was uninhabited. Since the Earth formed 4.6 billion years ago. However, at the time there were no living creatures that inhabit it. At that time the earth was a ball of fire that had aculation heat due to radioactive decay and gravitational contraction mikroit rain. History of life on Earth began about 3.5 billion new year with the advent of micro-organisms as simple as bacteria and algae. Then in one billion years ago has emerged multicellular organisms. At about 540 million years ago is gradually more complex life began to evolve.
Several theories on the history of the earth will be described briefly as follows.
1. The formation history of the Earth Big Bang Theory
This theory is the most famous theories in relation to the history of the earth. According to this theory, the Earth comes from the giant mist that rotates on its axis in billions of years ago. The turnover led to small parts are thrown out and a large part of the centralized form a giant round. Clumps of giant round fog finally exploded with a vengeance that then form the nebula, nebulae and galaxies. Nebula, the nebula is frozen and eventually form a galaxy, which we know as the Milky Way today. While the lumps are lightweight and telempar was eventually frozen out and form small planets, one of which is the earth.
2. The formation of the Earth's history Kant-Laplace theory of Fog
Knowledge about natural phenomena actually existed in BC. But only in the 18th century the experts think about the process of the Earth. Immanuel Kant (1755), a scientist and philosopher, and Pierre de Laplace (1796) had put forward his theory known as the theory of fog (nebula) Kant-Laplace.
Fog Kant-Laplace theory suggests that the history of the earth comes from the gas which then clump together and form a giant fog. The fog comes from the giant force of attraction between gas. then this giant fog has a very quick turnaround. Due to the center of rotation is thrown off the giant mist and cooling, which eventually freezes. Flung parts thus form the planets in the solar system, one of the world we live in is.
3. The theory of planetesimal formation of Earth's history
Planetesimal theory emerged a century later after the Kant-Laplace theory. This theory was initiated by Chamberlin and Moulton. In this theory revealed that in ancient times there is a sun that has been formed. Then there is a huge star is approaching the sun. Thus led to the withdrawal by the sun. Due to the withdrawal of the sun, then arises a huge blast. This caused an explosion of gas that comes out of the sun's atmosphere freezes and eventually condensed and called planetesimals. Earth is part of these planetesimals.
Various theories actually have similar views about the process of formation of the earth. These theories say that the Earth formed from gas that has a very hot temperature. Vulnerable due to a long time and a rotation of these objects very quickly, then decrease the heat to cool. This resulted in solidification.
4. The formation history of the Earth's Tidal Theory of Gases
In this theory proposed that the formation of Earth's history because of the tides in the body of the sun while it's still a gas. This tidal movement occurs because of the massive stars approaching the sun. Gravity of the star is close to the sun causes the appearance of mountains of waves in the body of the sun. The mountains will produce a very hot fire sparks.
Due to the extremely hot spark is there will be a sealing-sealing gas. And the mountains were going to burst and the fragments are formed the planets, including the olanet our earth. While the big star was approaching the sun continues to move around the universe, so the effect on the planets that formed was lost. Planets that have been formed earlier will revolve around the sun and mengelami cooling process. This cooling process will take place very slowly on planets that are large and will take place relatively rapidly on a small planet like Earth. The originator of this theory is Jeans and Jeffreys.
5. The theory of star formation history of the Earth's Twin
This theory was initiated by R.A Lyttleton. This theory suggests that the formation of Earth's history came from a meeting of the twin stars. Then, there was an explosion on one of the star. Fragments of the exploding star around stars that are still intact. This occurs because of the strong attractive force on the star was still intact, now known as the star of the sun and the fragments that have been exploding star is a planet that is in the solar system, one of which is the earth.
In addition to the above theories are still many more theories that explain the history of the earth. The experts tried to mengangkapkan ideas about the formation of Earth history. The experts among others, George Louis Comte de Buffon Leelere with his theory known as Theory of Buffon, C. Von Weizsaecker (Weizsaecker Theory, 1940), Gerald P. Kuiper (Kuiper Theory), Fred L. Whipple (Whipple Theory).
In the subsequent developments, there are natural processes that shape the earth, the natural processes of endogenous and exogenous. Brazilians is an endogenous process of change in earth processes from of power inside the earth. Like, an earthquake or earth surface subsidence caused by the shifting earth. Earth to travel a few centimeters each year. Exogenous natural processes is a power that comes from the outside world but it gives a huge influence on the earth. Exogenous force can cause changes in the relief face of the earth. Through sendimentation, erosion and weathering of motion capable of deforming the earth's surface. This power is one caused by human power.
Earth is a place, which can not be destroyed. The existence of natural processes, endogenous and exogenous able to affect the continued existence of the earth. Growth of living things on earth has a great influence for the existence of the earth. Because the creature (human) often do not realize that all the riches of the earth if taken continuously without regard to consequences, then one day this earth will be destroyed. So that we as human beings who occupy the earth, must keep the best of our earth, in order to avoid a change that could harm the earth and everything in it.
This is some blurb about the history of the earth according to some experts on its findings.
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