One could imagine one day, humans can freely traveling to neighboring planets. However, travel to the Earth's core is an impossibility.
Exploring the depths of the sea or the impenetrable forests, including things that are possible but not so much to explore Earth's core. Only able to penetrate the hardest drilling at a depth of 12 km and it is only 0.2% radius of Earth.
Thereafter, the high heat will attack and make whatever melts.Pressure and temperature extremes far interior of the planet is permanently out of reach. Therefore, the Earth has always had a 'miracle' is capable of charming people.
Plays the central core of Earth itself in many cosmologies and traditional beliefs. Latest, little by little science began to understand it. Here's a chronological view of the evolution of human understanding of the world hot under foot of men.
Hell hole
The traditional view which many states, the Earth's core is the lake of fire where the wicked live forever or so-called hell.Ignoring the side of life after death, that is an accurate depiction of Hell by the Earth's core.
Shocking indeed, many beliefs and cosmology describe it properly, in the form of volcanic eruptions that can be presented in an ancient culture with a frightening view of the fire of hell.
In fact, sulfur is a metaphor for Hell in the Christian gospel is simply a type of stone commonly found in volcanoes.
Turtles of the world
Many East Asian cultures and Native Americans did not describe the interior of the Earth as hell. Instead, they describe it as a giant tortoise called 'turtles of the world'. These turtles sustain the Earth on his back.
Several variations of this myth states, the tortoise is replaced elephant in Hindu myth, but some historians describe, the world is in the back of an elephant standing on a turtle.
Beginning in 1931, anthropologist Frank Speck studying this myth of the Delaware Indians who believe the turtle represents longevity and persistent nature.
Physicist Stephen Hawking has a famous anecdote about this myth, which is the tortoise standing on the back of another turtle standing on another turtle again and everything is a turtle.
Gold core
Geologist Bernard Wood of the University of Oxford estimates, there are 1.6 quadrillion tons of gold in the Earth's core and the number is sufficient to cover the surface of the planet with a 0.5 meter-thick gold.
According to him, the amount of gold there are six times more than platinum, nickel, niobium, iron and other elements.
Hypothesis geologists came after he examined the iron content in a similar meteorites 'planetismal,' small celestial bodies collide forming Earth. Wood found a lot of gold in these meteorites.
Layers of the onion
Earth's crust as if whispering a secret what lies beneath. When there is an earthquake, seismic waves bouncing through the Earth and reflects the crust, mantle, outer core and the later recorded seismograms around the world. Later, scientists trace back to create maps of Earth interior.
The result, found a ball of solid iron and nickel in its core.Although believed to have a temperature of 5500 C, the core of the Earth also has a high pressure of more than three million times the surface of the planet's atmosphere. This pressure will make the temperature at the melting point of iron.
According to David Stevenson of Caltech geologists, the outermost layer of fluid by 95% of total core volume. The coat is located at 3500 km beyond the Earth's core. This thick stone accounted for 84% of the total volume of the planet and the mantle is covered with a thin crust of human habitation.
Crystal Ball
Evidence shows the Earth's core is not a homogeneous section.Scientists are aware of seismic waves passing through the core faster than one pole to another.
That is, the core of the Earth has a different structure toward one another. Experts believe this is because the Earth's core is made of crystal are arranged in the Earth's magnetic poles.
Geophysicist Ronald Cohen of Carnegie Institute found, the horizontal and vertical waves made of nickel and iron atoms mixed two types of crystals that make it have a hexagonal structure and a cube.
According to Cohen, these crystals may be arranged opposite the Earth's core where the highest pressure. Furthermore, "There may be fluid in between".
Forbidden forest
Kei Hirose Japanese geologists have recently conducted experiments replicate the conditions at the core of the Earth on a small scale in the lab.
Using a vise, tools such as tongs, he heats the iron-nickel at a temperature of 4500 Celsius and three million times atmospheric pressure.
Based on what happened, he stated, the crystals in the Earth's core as high as 10 km. Hirose was described as a 'crystal forest'.
Sources:
inilah.com
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