The Big Bang theory states that all the matter that is in the universe was once in a very small amount of space with infinite temperature, pressure, and density. This theory is well supported and there are many reason for it’s support. One main reason is that no one really has a clue and The Big Bang Theory seems far fetched but more reasonable than any other ideas that there are out there. Some of the important thing to know about the big bang to understand are the beginning and the few seconds immediately after the actually bang. Also what generally has happened since the then. It is important to know theories of how it will end as well, and to get a well rounded opinion, I feel it useful to have some of the other possibilities outlined. The best place to start is the beginning.
One of the things that cosmologists are not yet sure about is the Big Bang itself. It is not yet possible to give a definitive answer to the questions: what was the Big Bang and why did it happen? However, there has been a great deal of speculation recently on this subject, and it may not be long before a definitive, or almost definitive, answer will be declared. For the moment we will simply take the Big Bang as it is given, a huge explosion in which time and space began expanding. It is important to realize that space itself originated in the Big Bang. IT is tempting to think of the universe before the Big Bang as being a vast, infinite, expanse of empty space, like the space between the galaxy clusters today. The Big Bang, then, would have flung matter into this nothingness, but this is not what happened. Space itself was created during the Big Bang. Einstein and all subsequent cosmologists have viewed space as being as real as matter. In fact, physicists now view empty space as a sea of “virtual particles”. So space is now expanding along with the galaxies and stars that exist with it and has been expanding ever since the Big Bang.
Actually, cosmologists actually have a clearer picture of what the universe was like during the period right after the Big Bang than they are about the universe today.
The reason for this is universe was very simple, in comparison, then. The universe was filled with a hot soup of particles like a hot gas trapped in a box. The photons in the cosmic microwave bac...
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...re is only so much energy available in the universe for the building of new stars. Just as the law of thermodynamics tell us that a closed universe can’t go on forever, so they tell us that new stars cannot go on being created forever in an open universe. Eventually the last star will die out and will not be replace. The proton will eventually decay. After about a billion billion billion billion years, all atoms will fall apart, and matter as we know it will cease to exist. The universe will be a vast sea of leptons and messenger particles.
One main, but unsupported, theory is that the universe was created by God. This theory is not excepted in the scientific community because in has no evidence to back it up. That doesn’t mean it isn’t a possibility. There are a few other theories of the creations of the universe, but no other theories are as excepted as the big bang theory. Some of the important stuff to know that I have covered is the eras right after the Big Bang, the Big Bang it self and a few of the possible endings to the universe. I hope with this information you can have a better understanding of the universe, its creation, and it’s endings.
In many theories that come into the light in the scientific field, there are always gaps, there are always issues within each that have no explanation to them. For example, the big bang theory, this is a theory that attempts to explain how the universe was created. This theory states that the universe began as a very small, dense, and hot ball (Imagine the universe all put into a ball the size of a pen tip) with no stars or atoms. This ball then expanded incredibly quickly. The universe was then formed as the way it is now. Personally, I feel as if this theory has a major hole that prevents me from believing it is possible. This hole is, “What exactly put this ball into motion in the first place?”
Matter, as we conceive it today, did not exist after the Big Bang, because the temperature was too high for that. While trying to join protons and electrons, light continually crossed apart. Only when the universe had cooled to 3,000 K, the atoms are held together and the light was beginning to happen.
Stars explode at the end of their lifetime, sometimes when they explode the stars leave a remnant of gasses and, dust behind. What the gasses come together to form depend on the size of the remnant. If the remnant is less than 1.4 solar masses it will become a white dwarf, a hot dead star that is not bright enough to shine. If the remnant is roughly 1.4 solar masses, it will collapse. “The protons and electrons will be squashed together, and their elementary particles will recombine to form neutrons”. What results from this reaction is called a neut...
The number of theories surrounding how the universe materialized is nearly endless, but Krauss’ thesis is one of the most convincing and buttressed that has been proposed. Lawrence Krauss is one of the most well respected theoretical physicists and cosmologists in America and has done extensive research on how and why the universe is in existence. Like the title of his book, A Universe from Nothing: Why There is Something Rather than Nothing, his entire theory surrounds the fact the universe was created from nothing. In support of his argument, he explores the weight and shape of the universe, dark matter and energy, quantum mechanics, visual particles, and expansion rates. While the world may never know exactly how the universe was created, society is getting closer to figuring it out and Krauss may have been the one to figure it out.
! Before the theory of Big Bang nucleosynthesis (BBN), physicist George Gamow predicted that the energy of the Big Bang was enough to create all of the elements in the universe. Two of his students later calculated that this was not possible. (Scientific American) Since a certain amount of energy is needed for nucleosynthesis, or the formation of heavier nuclei from smaller nuclei or particles, ...
And at the end of its life, it will become unstable and suddenly release all of its mass in a big bang...
The casualties of war caused America’s Japanese minority to be judged throughout the US. Americans believed all Japanese people were spies and needed to
The Big Bang is a theory that the universe was created in a very large
According to the American heritage dictionary of English language, the big bang theory is a scientific theory describing the origin of all space, time, matter, and energy approximately 13.7 billion years ago from the violent expansion of a singular point of extremely high density and temperature. Basically, this means that the big bang theory is based on the fact that the universe originated from a big explosion billions of years ago, but its origin can be credited to Edwin Hubble. The theory of the big bang grew out of Einstein’s equations of general relativity. There are so many theories and ideas involved in the creation of relativity; some that disprove the big bang and some that affirm it. There are more theories that disprove the validity of the big bang than there are theories that affirm it.
The Big Bang theory states that although the universe is currently cooling and expanding, the universe was once much hotter and smaller. The most compelling evidence for the proof of the Big Bang theory are the movement of distant galaxies, the expansion of space time, and the hydrogen and photons in the universe.
One of the determinants of scientific rationality is the condition that science undertakes only those problems whose solution is within the range of possibilities of research methods which science currently applies or is able to apply. Simply speaking, scientists are attracted by solvable problems. If this is really so then the fact of widespread discussions since the 70s among physicists and cosmologists on the subject of "the beginnings of the Universe" seem to be an obvious sign that also this unusually intriguing problem has matured to its scientific solution.
The prevalent theory today, describing the origin of the universe and where it all began is the Big Bang theory. Scientists believe that our almost 14 billion-year-old universe could at one point fit in the palm of one’s hand. In the beginning there was nothing. No space and no time but then came light. A tiny speck of light appeared and inside this tiny fireball was space – this was beginning of time. Time could now flow, and space could expand. The notion that everything in the Universe, all the matter, all the energy and all the galaxies were once contained in a region smaller than the size of a single atom today came from American astronomer Edwin Hubble in the 1920’s. He observed that other galaxies were speeding away from ours, and the further they were, they faster they seemed to travel. The Universe was therefore expanding and the Big Bang theory was born.
To answer the first question, according to many physicists, astronomers, and especially cosmologists the multiverse theory is a definite possibility. While there may not be a consensus on the issue, a reasonable number agree that our universe is, “But one of many pocket universes within a wider expanse called the multiverse” (Jenkins and Perez, 42). This infinite number of diverse universes originated in the primordial vacuum of space as a “tiny patch of spacetime…as small as a billionth the size of a proton” (Jenkins and Perez, 48), and underwent a period of rapid inflation. From such growth, all happening at different rates due to variations in constants and physical properties, pockets formed, ...
The Universe is a collection of millions of galaxies and extends beyond human imagination. After the big bang, the universe was found to be composed of radiation and subatomic particles. Information following big bang is arguable on how galaxies formed, that is whether small particles merged to form clusters and eventually galaxies or whether the universe systematized as immense clumps of matter that later fragmented into galaxies (Nasa World book, 2013). A galaxy is a massive area of empty space full of dust, gases (mainly 75% Hydrogen and 25%Helium), atoms, about 100-200 billion stars, interstellar clouds and planets, attracted to the center by gravitational force of attraction. Based on recent research, 170 billion galaxies have been estimated to exist, with only tens of thousands been discovered (Deutsch, 2011).
The big bang theory is an attempt to explain how the world began. The big bang theory begins with what is called a “singularity.” This term is used to describe an area in space which defies all the known laws of physics. Singularities are thought to exist at the core of black holes. Black holes are areas of intense gravitational pressure. The pressure is thought to be so intense that matter is pressed together into an infinite amount of pressure. The dense hot mass of the singularity slowly expanded. This process is called inflation. As the singularity expanded the universe went from dense and hot to cool and expansive. Inflation is still continuing on today which means that the universe is continually expanding.