Big Bang Theory (scientific model)

The Big Bang Theory is an event that caused the creation of the universe according to cosmological theories.

2,606 Questions
Astronomy
Big Bang Theory (scientific model)

Do you think it would be possible to detect light and create images of what the universe looked like in the seconds or minutes after the big bang Explain your reasoning.?

012
Astronomy
Physics
Big Bang Theory (scientific model)

What are three pieces of evidence for the big bang theory?

Cosmological redshift -- on a large scale, everything in the universe appears to be moving apart. If you extrapolate backward, then it seems that about 14 billion years ago everything would have been in the same place. Since that's not the case now, something must have happened. Microwave background radiation -- in every direction we look there is a remarkably uniform amount of microwave radiation. It looks very much like what we'd expect to see if the entire universe were filled with a very hot plasma 14 billion years ago which has since expanded and cooled. Elemental abundance -- the proportions of various elements that we actually detect agree well with what would be expected if the Big Bang theory is correct.

678
Astronomy
Physics
Big Bang Theory (scientific model)

What do scientists believe provides evidence for the Big Bang Theory?

The presence of cosmic microwave background radiation. The CMBR is easily explained -- and was predicted -- with the Big Bang, but is impossible to explain with any other hypothesis.

Inhomogeneities in the CMBR match prediction.

Red shift of stars far from observers on Earth, with the size of the red shift being proportional to the distance away from us. Calculation of the Hubble Constant leads to a time of 13 billion years ago as when all matter we can now see was clumped together.

All young galaxies are about ten billion years away.

No white dwarfs exist that are older than twelve billion years.

Our Universe consists of 90% hydrogen and about 10% helium -- pretty much exactly as predicted by the Big Bang. No other hypothesis can explain this ratio.

The ratio of decay products to isotopes with long half-lives show an age of our Universe at about ten billion years.

The scientific evidence for the Big Bang is overwhelming. The scientific evidence for other hypotheses is non-existent.

That the space in our Universe, about 13.7 billion years ago, began to expand (ie, it was NOT an explosion of matter into empty space) and has been expanding ever since; is supported by all observational evidence and contradicted by none. Alternatives to this idea are completely ruled out by that same evidence. This includes:

1) red shift of distant galaxies.

2) cosmic microwave background radiation.

3) distance to young galaxies (none are close).

4) ratio of hydrogen to helium.

5) age of oldest white dwarf stars.

6) ratio of long-lived radioactive isotopes and their decay products.

The evidence supporting Big Bang Cosmology is as strong as the evidence for interplanetary gravity.

ApexVS: Red shift of stars far from observers on Earth

91011
Big Bang Theory (scientific model)

Is the ekpyrotic theory a theory of the big bang?

It is similar to the Big Bang theory. The ekpyrotic theory is, a theory that their is a parallel universe (More than one) In our universe.

012
Big Bang Theory (scientific model)

What is the difference between the big bang and nebular theory?

The Big Bang theory explains the structure of the cosmos on the largest scale. The nebular hypothesis explains the formation and structure of individual stars and solar systems.

123
Big Bang Theory (scientific model)

What did scientists predict the big bang should have left?

answer

012
Astronomy
Big Bang Theory (scientific model)

What are the 3 main pieces of evidence for the Big Bang Theory?

There are lots of pieces of evidence, here are a few.

  • The Second Law of Thermodynamics simply means the Universe can not have existed forever in the same state. In other words, it is inevitable that there is some kind of irreversible change.
  • Calculations that a static Universe can't remain stable for long.
  • Observations that most galaxies are moving away from us. This is based on the redshift, due to expansion of space over time -- including the wavelength of the light emitted from stars.
373839
Astronomy
Big Bang Theory (scientific model)

What elements were formed in the big bang?

The only element that was formed in the big bang was hydrogen.

However, in this compact and extremely hot area it was possible for nucleosynthesis to occur. For about three minutes, helium and a small amount of lithium (plus a smattering of deuterium, tritium and beryllium) were produced.

After about three minutes, the Universe had cooled sufficiently to halt this process.

Any other elements would be produced in a stars core or a nova/supernova explosion.

91011
Big Bang Theory (scientific model)

What are three things that formed by a few minutes after the Big Bang?

Cosmologists believe a process called inflation happened in the fraction of a second after the Big Bang.
One second after the Big Bang, the universe was made up of fundamental particles including quarks, electrons, photons and neutrinos.
Three minutes after the Big Bang, protons and neutrons began to come together to form the nuclei of hydrogen, some of which fused further into helium and lithium.

012
Astronomy
Earth Sciences
Big Bang Theory (scientific model)

How does the expansion of the universe support the big bang theory?

It is not so much that the universe is expanding, but rather the rationalization for its expansion that provides evidence to support the Big Bang Theory. The Big Bang supports interpreted observational evidence of the Cosmic Microwave Background Radiation (CMBR) barrier that there is an evolutionary expansion of the universe which promotes a finite age for the universe.

789
Astronomy
Physics
Big Bang Theory (scientific model)

How would a pure chemist test a novel molecular theory?

They'd look at it from all angles.

234
Astronomy
Big Bang Theory (scientific model)

What are elements that were formed during the big bang?

Soon after the Big Bang, protons and neutronswere created and formed atomic nuclei. Theprotonis the nucleus of a hydrogen atom.

Deuterium(an isotope of hydrogen) nucleiwere also formed, along with nuclei ofisotopes of helium.

The nucleiand electronsremained uncombineduntil about 380,000years

after the Big Bang. That's when atoms(of hydrogen and helium mainly)formed.

As well as hydrogen and helium a small amount of lithium was also formed.
567
Astronomy
Earth Sciences
Big Bang Theory (scientific model)

What are two pieces of evidence for the big bang theory?

The first piece of evidence for the Big Bang theory was the expansion of the universe. The second piece of evidence is called 'Cosmic background radiation'.

There are, in addition, many others.

789
Astronomy
Cosmology
Astrophysics
Big Bang Theory (scientific model)

Who discovered the sun in the center of the universe?

Gcg

001
The Bible
Calendar
Big Bang Theory (scientific model)

What was before god?

Bismillah (In the name of God) There cannot be something before God swt (or after God). explanation: I will use the numbers as a example. If we take the number 0... what was before 0? answer: -1 so we can ask now, what was before -1? answer: -2 so we see that the numbers under the 0 have no begin. so can we ask the same question for above 0? yes! it goes from 1 to 2 , to no end! (do you know the last number?) so we see that numbers have no begin and no end, and yet we ask ourselve how God swt can have no begin and no end? ---- Many years ago, during the time of the Taabi'een (the generation of Muslims after the Sahabah), Baghdad was a great city of Islam. In fact, it was the capital of the Islamic Empire and because of the great number of scholars who lived there, it was the center of Islamic knowledge. One day, the ruler of Rome (at that time) sent an envoy to Baghdad with three challenges for the Muslims. When the messenger reached the city, he informed the Khalifah that he had three questions which he challenged the Muslims to answer. The Khalifah gathered together all the scholars of the city and the Roman messenger climbed upon a high platform and said, Ihave come with three questions. If you answer them, then I will leave with you a great amount of wealth which I have brought from the king of Rome." As for the questions, they were: - 'What was there before Allah?' - 'In which direction does Allah face?' - 'What is Allah engaged in at this moment?'

The great assembly of people were silent. (Can you think of answers to these questions?) In the midst of these brilliant scholars and students of Islam, there was a man looking on with his young son. "O my dear father! I will answer him and silence him!" said the youth. So the boy sought the permission of the Khalifah to give the answers and he was given the permission to do so.

The Roman addressed the young Muslim and repeated his first question, "What was there before Allah?" The boy asked, "Do you know how to count?" "Yes," said the man. "Then count down from ten!" So the Roman counted down, "ten, nine, eight, ..." until he reached "one" and he stopped counting. "But what comes before 'one'?" asked the boy. "There is nothing before one - that is it!" said the man. "Well then, if there obviously is nothing before the arithmetic 'one', then how do you expect that there should be anything before the 'One' who is Absolute truth, All-Eternal, Everlasting the First, the Last, the Manifest, the Hidden?" Now the man was surprised by this direct answer which he could not dispute. So he asked, "Then tell me, in which direction is Allah facing?" "Bring a candle and light it," said the boy, "and tell me in which direction the flame is facing." "But the flame is just light - it spreads in each of the four directions, North, South, East and West. It does not face any one direction only," said the man in wonderment. The boy cried, "Then if this physical light spreads in all four directions such that you cannot tell me which way it faces, then what do you expect of the Nur-us-Samawati- wal-'Ard: Allah - the Light of the Heavens and the Earth!? Light upon Light,(Quran An Nur (Light) 24:35), Allah faces all directions at all times."

The Roman was stupefied and astounded that here was a young child answering his challenges in such a way that he could not argue against the proofs. So, he desperately wanted to try his final question. But before doing so, the boy said, "Wait! You are the one who is asking the questions and I am the one who is giving the answers to these challenges. It is only fair that you should come down to where I am standing and that I should go up where you are right now, in order that the answers may be heard as clearly as the questions." This seemed reasonable to the Roman, so he came down from where he was standing and the boy ascended the platform. Then the man repeated his final challenge, "Tell me, what is Allah doing at this moment?" The boy proudly answered, "At this moment, when Allah found upon this high platform a liar and mocker of Islam, He caused him to descend and brought him low. And as for the one who believed in the Oneness of Allah, He raised him up and established the Truth. Every day He exercises (universal) power (Surah 55 ar-Rahman, Verse 29)." The Roman had nothing to say except to leave and return back to his country, defeated.

Meanwhile, this young boy grew up to become one of the most famous scholars of Islam. Allah, the Exalted, blessed him with special wisdom and knowledge of the Deen (religion). His name was Abu Hanifah (rahmatullah alayhi - May Allah have mercy on him) and he is known today as Imam Abu Hanifah (Imam-e-Azam) , the Great Imam and scholar of Islam

567
Astronomy
Cosmology
Big Bang Theory (scientific model)

What is a summary of the big bang theory?

The Big Bang theory is an effort to explain what happened at the very beginning of our universe. Discoveries in astronomy and physics have shown beyond a reasonable doubt that our universe did in fact have a beginning. Prior to that moment there was nothing; during and after that moment there was something: our universe. The big bang theory is an effort to explain what happened during and after that moment.

According to the standard theory, our universe sprang into existence as "singularity" around 13.7 billion years ago. What is a "singularity" and where does it come from? Well, to be honest, we don't know for sure. Singularities are zones which defy our current understanding of physics. They 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 finite matter is actually squished into infinite density (a mathematical concept which truly boggles the mind). These zones of infinite density are called "singularities." Our universe is thought to have begun as an infinitesimally small, infinitely hot, infinitely dense, something - a singularity. Where did it come from? We don't know. Why did it appear? We don't know.

After its initial appearance, it apparently inflated (the "Big Bang"), expanded and cooled, going from very, very small and very, very hot, to the size and temperature of our current universe. It continues to expand and cool to this day and we are inside of it: incredible creatures living on a unique planet, circling a beautiful star clustered together with several hundred billion other stars in a galaxy soaring through the cosmos, all of which is inside of an expanding universe that began as an infinitesimal singularity which appeared out of nowhere for reasons unknown. This is the Big Bang theory.

91011
Cosmology
Big Bang Theory (scientific model)

Where were the contents of the universe before big bang?

Prior to our universal reality within a fourth dimensional existence, the instance of universe is modeled within the creation event called the Big Bang. The pre-Big Bang is a theory, in which all the essence of our universe was previously defined within a singularity, is really an extreme condition of our fourth dimensional reality in SpaceTime providing for a temporal confinement in the unification of all the primary forces of the physics (i.e., gravitational, electromagnetic, strong and weak); the Big Bang is not a true one dimensional perspective of SpaceTime. Therefore, it can be assumed that the actual instance of creation preceded the Big Bang creation event in an unfolding evolution of dimensional realities of SpaceTime. Stephen Hawking has addressed this peculiar connection between time and the Big Bang. In 'A Brief History of Time' and elsewhere, Hawking says that even if time did not begin with the Big Bang and there were another time frame before the Big Bang, then no information from these events then would be accessible to us; i.e., nothing that happened pre-Big Bang would actually have any effect upon the present time-frame. Upon occasion, Hawking has stated that time actually began with the Big Bang, and that questions about what happened before the Big Bang are meaningless. Other Opinion: While the Big Bang introduced the dimensional reality of existence into the void/abyss of non-existence, the expectation is that the contents of our universe will continue to be evolved and expanded within this infinite void/abyss. In this perspective, existence is the intrusion of a fourth dimensional convergence of Space and Time within the infinity of non-existence (or nothingness). Some say this nothingness is representative of dark energy, in which case it would be something. Then we would need to rethink our model of cosmology to allow for nothingness to precede even this medium of dark energy.

012
Big Bang Theory (scientific model)

What is meant by fire light of big bang?

no idea plz tell me

012
Physics
Cosmology
Big Bang Theory (scientific model)

Big-Bang theory explains?

THE BIG BANG THEORY IS NOT TRUE!!!!!!!!!!!!!!!!!!!!!!!!!!!!

SCIENTISTS MADE THAT UP SO THEY COULD HAVE SOMETHING TO

PROVE!!!!!!!!!!!!!!!!!!!!!!!!!!!!! ENERGY CANTS COME OUT OF NO WHERE!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!! EVERYONE SHOULD KNOW THIS: GOD CREATED EVERYTHING!!!!!!!!!!!!!!!!!!!! MAN, ANIMALS, MOON, STARS,

GRASS, FLOWERS, ROCKS, BUGS, I CAN'T NAME THEM ALL!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

THE.

BIG.

BANG.

THEORY.

IS.

NOT.

REAL.

amen.

012
Big Bang Theory (scientific model)

How did the big bang affect earth?

Not in the slightest, because, neither the earth, nor any other planets, nor the sun,

nor any other stars, nor any atoms, existed at the moment of the 'big bang'.

But you might say that the big bang was lucky for the earth, since it was the origin

of the conditions out of which the earth would be created, a few billion years later.

151617
Big Bang Theory (scientific model)

How did the discovery of quasars disprove the steady state theory?

The steady state theory was disproved by observations in the sense that at larger distances, the Universe doesn't look the same as nearby. This means the Universe has changed over time, directly contradicting the main assumption of the steady state theory. - I am not sure to what extent quasars were involved, but quasars do tend to show up more frequently at greater distances, i.e., in the early Universe.

012
Cosmology
Big Bang Theory (scientific model)

Why do scientists believe in the Big Bang Theory?

Scientists do not 'believe in' theories. They gather evidence for them and build them up with experiment and observation or reject them if there be contradictory evidence. The Big Bang Theory is accepted due to the presence of much evidence, such as:

Arno Penzias and Robert Wilson's telescope's hissing, a remnant of radiation from a massively hot early Universe (see Bill Bryson's account in A Short History of Nearly Everything). The static on a television is also a remnant presumably of a hot early state to the Universe.

The red-shift of galaxies, implying expansion of the Universe, which extrapolated backwards and combined with General Relativity implies a dense, space-time warped, hot, small beginning to the Universe.

The darkness of the night sky (see Marcus Chown's Quantum Theory Cannot Hurt You for an account) which is a darkness, not a bright glow which would occur if light had been pouring from all corners of the Universe towards Earth for infinite time (more of a hint at a finite age to the Universe rather than a direct inference of a Big Bang).

The ratio of hydrogen to helium in the Universe.

Or, some contradictory somewhat non-partial evidence:

[related links 1]

131415
Physics
Cosmology
Astrophysics
Big Bang Theory (scientific model)

How long after the big bang did stars and galaxies form?

Galaxies were in existence no later than about 800 million years after Big Bang. We know because we've seen them.

Stars are thought to have formed about 150 million years after the Big Bang, but this is only a computational model.

345
Astronomy
Big Bang Theory (scientific model)

How does Hubbles Law relate to the Big Bang theory?

Nothing

678
Big Bang Theory (scientific model)

How does the red drift support the big bang theory?

Hello , i am minakshi and the answer of your question is that the red shift support the big bang theory as red shifts of galaxies which was proved by edwin hubble

it states that the universe is expanding as a constant rate after the big bang. the red shift also states about the dopplers effect from which we the age of the universe.

123

Copyright © 2020 Multiply Media, LLC. All Rights Reserved. The material on this site can not be reproduced, distributed, transmitted, cached or otherwise used, except with prior written permission of Multiply.