The Closing Of The Universe

TABLE OF CONTENTS



1. The galaxias2. Universo3 expansion. Contrae4 The universe. Meteorites



THE END OF THE UNIVERSE

Galaxies

Before beginning this inquiry, we must define what is the universe or what kind of stuff we call the universe. And this in a superficial way, otherwise we would create a multitude of tests.

Universe: The Universe is generally defined as everything that physically exists: the entirety of space and time, all forms of matter, energy and momentum, laws and physical constants that govern them. However, the term "universe" can be used in slightly different contextual senses, to refer to concepts as the cosmos, the world or nature.

A little history: you may recall that there was a system called "geocentrism" is teoríaafirmaba that the earth is the center of the universe and all planets including the "sun" revolved around the earth. System proposed by Ptolemy in the second century his work The Almagest.

- This church served to deceive men, telling them that the earth be the center of the universe, man's position was closest to God. And of course God's representatives on earth were the leaders of the church. The journalists of the voice of God on earth. This served to domination and exploitation. Religion and power.



Heliocentrism: This theory states that all planets including the earth revolved around the sun. Why the church feared that the men were aware of this truth. Recall that the fathers of the church, through its members came to see that discovery. But they chose to deny consciousness. Since the most important thing was not the truth and if the power. 1 MELO JOSE ORLANDO ORANGE

The heliocentric theory was proposed by ancient Greek Aristarchus of Samos (310 a. C.tiempo - 230 BC), who was based on simple measures of the distance between Earth and the Sun, determining a much larger to the Sun than the Earth.

Note: for those wishing to explore this issue, we recommend the following books: Thomas Kuhn's Copernican Revolution Volume 1 and 2. Epistemologist and a great thinker.

ISAAC ASIMOV brings to mind: We have been explaining how the universe should behave, apparently, according to the laws of thermodynamics. What is thermodynamics? Thermodynamics is well defined. Since this text is for those who already know everything.

Thermodynamics can be defined as the subject of physics that studies the processes by which energy is transferred as heat and as work.

Of its laws do not concern us because it is large topic. We can think that this call thermodynamics is a cause for the universe to develop events such as the expansion and contraction.

Example: Take a balloon or a pump and paint many points when you blow up the balloon or pump, points increasingly farther apart from each other. This serves to give an example of how the universe expands and as things separate more and more of their starting point. If you let some air out of the pump shrinks, it shrinks. Then the dots begin to merge. If you let all the air out the points or things will return to its starting point. Best example you can not.

ISAAC ASIMOV reminds us that after the heliocentric theory, scientific advances began to show us that the sun was not the whole. That were contained in an infinite universe and also we were located in a galaxy called the Milky Way. This is our galaxy, because we now know that there are many galaxies.

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After discoveries, such as: light travels at a speed of about 300,000 miles on second. As explained this. Well remember simple examples: if a body had that speed would give 7.5 times around the earth in one second. But we know no body can resist such speed before disintegrating.

EXPANSION OF THE UNIVERSE



Although the galaxies are at enormous distances we can learn some interesting things about them through the light that reaches us. The wavelengths affect our vision so that they are translated into colors.



- The shorter wavelength light appears violet.

- Then we see more distant blue.

- Farther green, yellow.

- The more distance in space an orange and red

"The famous Rainbow CALLED NATURAL SPECTRUM"



And all from what? According to scientists at the Big Bang, the explosion that occurred about fifteen billion years. One reason was the entropy.

But what is the Big Bang? What is entropy?



Big Bang: The Big Bang, big bang literally, is the moment of "nothing" all matter emerges, ie the origin of the universe. Matter, so far, is a point of infinite density, which at one time "explodes" to generate the expansion of matter in all directions and creating what we know as our universe.

Entropy: Entropy is defined as a measure of thermodynamics, which represents the fraction of energy in a system that is unavailable to perform or perform a specific job. Also defined as a measure of order or restrictions to carry out a job.



How can I influence that energy as heat and work in the big bang we do not know that scientists respond

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Some of the local galaxies are Andromeda, Magellan. It is said to belong to the territory of another galaxy, and this is our milky way. Would not that be part of our galaxy. But they are great in that territory.

Remember how we talked of thermodynamics, entropy, and the Big Bang in a superficial way? If so. Let's talk about something called gravity.

Gravity: Gravity is one of the four fundamental forces of the universe. It works on a property of matter and energy that is its mass, gravity is a force that is due to the presence of mass in the universe.

Example: If you drop something on the table, there is a force that pulls objects toward the earth and the force called gravity, with such force that the well or higher would fall into space. Men could not walk on land, cars could not move, things would not be in place. The planets would revolve not around their orbits and so elliptical, etc.. Things would be a mess.

"Some physicists speculate that gravity is the product of the entire mass of the universe working in partnership and not simply the product of individual bodies. The more one gets the total mass of the universe reaching a volume shrinking, the more intense the field gravity produced by any particular body. Similarly, the more you dilate enough mass and increasing volumes, the weaker is the gravitational force produced by a given body "

The universe contracts

One of the notions about the origin of the universe is based on the notion that the universe is finite, and that its expansion will not continue forever. The universe behaves like a rocket whose speed is less than that required to escape the pull of the earth. Its expansion will become slower until it stops. To which follow a contraction of the

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(Due to gravity) at first very slowly, but increasingly speeding anger, so that in the very distant future will be repeated approximate the conditions that existed in the universe. Our "phase" of the universe end up with a Big Crunch (big crunch or big implosion)

According to the general theory of relativity, if the total density of matter in the universe is high enough, the universe is finite, a situation that occurs in practice. If this scenario describes accurately what will happen in the future, then the same may have happened in the past, and our Big Bang could be the next step to a previous stage of contraction. In this model, it is conceivable that the universe has always existed, and has gone through endless cycles of expansion and contraction as a league that stretches and compresses again and again, endlessly.



Complementing FINAL

Meteorites: are fragments formed by the solar system for rock or metal, come from asteroids between the orbits of Mars and Jupiter. Sometimes they collide and go off in different directions. These are very close when the earth are attracted by the force of gravity. When meteorites land intercept and precipitate on contact with our atmosphere is light as a result of friction.

Star Wars: Galaxies are huge collections of stars, gases and dust. In the universe there are hundreds of thousands of millions. Each galaxy may consist of hundreds of billions of stars and other celestial bodies. In the center of the galaxy is where stars are more concentrated.

Each body of a galaxy is moving because of the attraction of others. In general there is also a broader movement that makes it all together turn around the center.



BIBLIOGRAPHY

Isaac asimov the threats of our world 1992