Big bang Definition and 916 Threads

  1. M

    Big Bang Theory: What We Know So Far

    Big Bang...? ok so this is basically what I know of the theory can sombody point out if I'm go wrong with any of thi? ok so once there was an endless void of nothingness.there was no matter no particles nothing, and then a random explosion accured in the empty void and thus crated particles...
  2. G

    What caused the increase in entropy after the Big Bang?

    I have a very limited knowledge about entropy, just the usual layman view, e.g. entropy reflects the number of ways a system can be arranged, or in even more layman language, the degree of order / disorder of the system. A system which can be subdivided in groups according to different...
  3. D

    Is the universe expanding faster than the speed of light?

    Hi all, It's said that approximately 3 seconds after/into the Big Bang, the 'universe' expanded at a velocity > c. However, this breaks the laws of SR, right? "No mass can equal/breach c". So, could someone enlighten me on this subject? Why are BOTH "No mass can equal/reach c" and "the...
  4. T

    The Big Bang and the Creator's Soup

    The Big Bang and the Creator's "Soup" I have never believed in the Big Bang Theorey as it sounded preposterous that all the "matter" in the Universe could have been squeezed into such a small mass. However, I want to put forward this "Supposition" as to a way in which "The Big Bang" could have...
  5. H

    Was Space Present Before the Big Bang or Did It Expand with the Universe?

    If and when the "Big Bang"... Here's one I've pondered for almost seventy summers [and winters; etc.] When the Universe began, was the black container of space "there" to welcome the expanding matter, or was it created as the matter expanded from its initial inception? If the space was "there,"...
  6. N

    Time Dilation & big bang Question

    With respect to time dilation... During the Big Bang, when space was expanding explosively (probably at light speed?) -- what was time doing? Was time at a standstill (or very dilated) during the explosive growth of the three spatial dimensions? Or was time expanding explosively since it's in...
  7. E

    The Origin of the Universe: Reexamining the Big Bang Theory

    Hey, everyone, this is my first thread on this site. I was thinking about the big bang. The big bang is noted as an explosion from a primeval atom. When this atom exploded, matter and energy scattered everywhere. From this explsion, space-time itself was created. I find it hard to...
  8. W

    Could Our Universe Have Originated from Another Universe's Black Hole?

    Why does there have to be a big bang, why couldn't we (the universe) begun from another universe's black whole and pure energy flowed from a quasar, or white hole, from reading about quasars they are dumping millions of times the energy into the universe than galaxies that we view that is...
  9. marcus

    What was the Maximum Energy Density at the Onset of the Big Bang Expansion?

    the big bang has been studied by a number of people and found not to contain a singularity (the density does not go infinite but has a finite limit) a good recent paper is http://arxiv.org/gr-qc/0407074 Genericity of the Big Bounce in isotropic loop quantum cosmology' Date and Hossain...
  10. N

    Big Bang Theory: Exploring Time & Space

    Hi, i had a query bout big bang which i guess even u guys would have thought of at some time or the other... big bang theory says that this primordial atom was a "small point" which had infinite density and contained all the matter n energy needed to fuel n run todays...
  11. K

    Is there a limit to the validity of laws as the universe expands?

    Newton's law of gravity Force = Gm1 m2 / r^2, can be used to calculate the force that the universe as a whole exerts on a particle at its surface, provided a particle on the surface of a sphere containing the entire mass of the universe has a radius greater than 10^ 25 metres (it is currently...
  12. marcus

    Casimir energy, big bang, dark energy

    http://arxiv.org/abs/gr-qc/0406056 Casimir Energy Density at Planck Time: Cosmic Coincidence or Double Solution to the Cosmological Dark Energy Problem? C. S. Unnikrishnan (Tata Institute, Mumbai) 5 pages "The Casimir energy density calculated for a spherical shell of radius equal...
  13. B

    Is the Big Bang Running Out of Steam?

    I carefully studied these links and came to the conclusion that the big bang is running out of steam. http://www.CosmologyStatement.org http://www.world-mysteries.com/sci_10_eusa.htm http://www.apologeticspress.org/rr/rr2003/r&r0305a.htm How many years do you give to the big bang...
  14. B

    Big Bang Theory Court Case: Guilty or Innocent?

    If the big bang theory were to be taken to court under the same umbrella as a capital murder trial do you think it would be found guilty or innocent ? i.e. Guilty meaning the big bang did occur and inncoent meaning it did not occur.
  15. K

    (1 - 2 GM/ r c^2) ^ 1/2 and Big Bang

    In general relativity the equation t1 = t2 ( 1 - 2 GM/ r c ^ 2) ^1/2 is often mentioned. If the mass, M, is equal to the mass of the universe - 10 ^ 52 kg - then r cannot be less than 10 ^ 24 metres without invoking the idea that a time can be imaginary. But could an equally valid...
  16. E

    C"Exploring the Big Bang: How Did Time Come to Be?

    I have a question about the big bang We theorise that all the matter came from a singularity and that this expanded at the big bang shedding matter and energy in vast expanses. However, if this is the description of how matter came to be, then how did time ever come to be? The very first...
  17. P

    Did a Pre-Big Bang Species Cause the Big Bang Theory?

    Day-dreaming the other day, I postulated a possible explanation for the controversial Big Bang Theory. Because an object attains infinite mass when it reaches light speed, is it possible that a pre-big bang species reached light speed (or near) and the affected object achieved infinite mass (or...
  18. K

    Big Bang Scenario with Atoms and Molecules: Exploring the Equation

    BIG BANG SCENARIO WITH ATOMS AND MOLECULES - NOT INDIVIDUAL QUARKS - AT BEGINNING Equation for an ideal gas: PV = nRT T = 10^10 after one second – according to steven Weinberg. I shall assume that T was close to this value when t = 0. R = 8, n, the number of moles of hydrogen in...
  19. A

    Brane + Brane = Big Bang => What About Time?

    I'm just trying to understand the idea that our universe may be the result of a collision between two branes. According to this, what we see around us is a 3D brane floating in a higher dimensional universe? When our brane collided with another brane, it trigerred the heating and expansion that...
  20. P

    Unraveling the Big Bang: Common Sense Questions and Ideas

    I came upon this forum due to an article I read in Popular Mechanics entitled "Where time began" and a google search. I believe that the more you dwelve into detail the less you lose sight of the obvious. It never ceases to amaze me when scientists do all sorts of calculating, analysing, and...
  21. O

    Did Moses Predict the Big Bang Theory?

    I don’t know about you but I don’t feel intellectually intimidated by a name of “authority” like physicist Stephen Hawkins, specially cos some statements don’t seem to be naïve or childish but really IMBECIL for a man knowing math as he does in his Brief Story of Time, the example of monkeys...
  22. I

    Is the Big Bang Theory Really Wrong?

    I found an intriguing article (well seemingly intriguing; I didn't get to finish reading it) that argues against the BB: http://www.angelfire.com/az/BIGBANGisWRONG/
  23. I

    The Big Bang: Inside a Singularity

    The big bang occurred after a singularity evaporated, correct? All that there was in the universe was "in" the singularity. So there was no space for the singularity to have curved. :confused: Also, when space time is curved, in what direction is it curved? or is that relative to the...
  24. K

    Quark Radius & Big Bang: Christoph Schiller's Force Theory

    If Christoph Schiller is right about the maximum force in nature being 10^ 45 Newtons (c^4 / 4G) then if quarks have a radius and are not point like this would mean (assuming a quark is spherical and made of partial electric charges on the surface of the sphere) that the minimum size a...
  25. T

    Did Supermassive Black Holes in Quasars Form Before Those in Galaxies?

    Edwin Hubble, 1929, formulated his hypothesis that the universe was expanding. George Gamov, in 1940’s, predicted the back-ground radiation, which was accidentally discovered by Penzias and Wilson, in 1965. However in 1969, Lyndon-Bell, laid the foundation that, at the heart of every...
  26. R

    What caused inflation in the big bang theory?

    What caused inflation in the big bang theory? I've read a few things that seem pure speculation designed to give a cause for something thought to necessarily have happened such as an antigravity force that faded at the end of the inflationary period. It seems too contrived to me.
  27. W

    Alternate Explanations for Redshift in the Universe

    Are there other ways to explain redshift than an expanding universe?
  28. R

    Two Big Bang Theory Vs Other Theories

    Hi, India rarely helps scientific advancement. Recently this country has made some wonderful advances in the field of missile technology and information technoloy. Their recognition has become strong now. Indians are now more popular in American due to outsourcing issue. Similarly some...
  29. N

    Big bang, schmig bang: everything's just shrinking

    okay sure, the redshifts in light measured from distant stars would imply that the space between us and it is getting farther and farther apart. wouldn't this also be true if all matter was shrinking? take two inflated balloons spaced a meter apart. if the balloons represented stars and...
  30. J

    Can a Theory of Everything Exist Without Understanding the State of Nothing?

    10) How can Physicists propose a Theory of Everything without considering more closely the state of nothing from which energy was created? A second impasse faced by cosmological theory - insofar as it attempts to explain the origin of matter – is when describing the circumstances under which...
  31. J

    Searching for the Centre of the Universe: Is it at Rest?

    3) Why did it become unfashionable to mention the centre of the universe after the 16th century, when Copernicus placed the sun near there? Every body has a centre of gravity, whether it is a galaxy, a person, or a pebble. The universe had one when it first appeared: What happened to it? What...
  32. J

    Big Bang Theory: Exploring the Origins and Physics of the Universe

    Here follows the first part of the questions. Their appearance here is with thanks to Marcus and Nereids' encouragement:- Questions arise on what has been written for we ordinary people about how matter began – and on what has received little to no mention at all. To a cosmologist, these...
  33. A

    Mystery Before The Big Bang Unfolded

    You know guys, the planets is composed mainly of two types of rock material, Fe-material( siderolites) and the stony element (aerolites), these are heavy elements and available in the apace, which formed planets and stars within 1-2 billion years just because there were two Big Bangs, one...
  34. G

    Big Bang Pattern? Exploring Possibilities

    Hi all, i have a question about the big bang, it might be dumb i don't know much about science. Anyway here is my train of thought. 1. Matter cannot be created nor destroyed and therefore everything that exists today has existed for an infinate amount of time in the past and will for an...
  35. Orion1

    Unveiling the Ultra Deep Field: The Big Bang Blast of 10,000 Galaxies

    The snapshot of the universe, called the Ultra Deep Field, captured light that had streaked through space for more than 13 billion years, starting its journey when the universe was only 5 percent of its 13.7-billion-year age. The view has about 10,000 galaxies, some mixed in chaos that one...
  36. J

    Seeking Answers to Geophysical Questions About the Big Bang Theory

    Can anybody suggest an avenue for resolving a predicament I face over big bang theory? I'm a geophysicist and work in remote areas, engaged in seismic data acquisition projects. I am fascinated by what I read on theoretical physics, and the fascination is focused on the (so far unsuccessful)...
  37. D

    Is Omniscience Possible in a Universe Described by Our Current Laws of Physics?

    This is question from a philosophical thread but it is scientific in nature. Is omniscience possible in a universe described by our current laws of physics. I would say it is not. Information could not be gathered from the entire universe instanteously which would be necessary to know...
  38. P

    Atheistic explanations for the Big Bang?

    This definitely is a philosophical question, since the time/space outside of this theory cannot be theorized about scientifically. Since (assuming it happened) things expanded exponentially at insane temperatures in the first fraction of a second, one must assume that something happened on a...
  39. I

    Why do you refuse to consider new evidence and advancements in science?

    To the mentor-censor Why do you forbid research reports about empirical discoveries that by scientific derivations give other results than the conspired consensus? Why do you not let your members discuss the science without censoring? What I would like to tell more about is the unified...
  40. V

    Universe began in a hot big bang

    This is my first post and I’ve got some questions in regards to our universe. From what I’ve been reading it is known that the universe began in a hot big bang, or evolved from a similar condition. Either way the information we have points to some kind of initial condition, and also a beginning...
  41. S

    Time dilation and the big bang

    I'm new to this forum and need to throw out a question: I'd like to know what the difference in the time that I might record if I were standing at the beginning of the Big Bang looking forward and if I were here now looking back. In other words how old would the universe look if I were...
  42. F

    What happened Before the Big Bang

    Forgive me if this has been asked/answered before but this is something I've wondered about since I was six years old. Please keep in mind that I know nothing about Physics (I didn't even take physics in high school) so I apologize if this sounds stupid. From what I understand...
  43. D

    The Mystery of the Big Bang: Exploring the Origin of Our Universe

    This question might not be sensible to ask having in mind "The brief history of time" by S. H. since there he claims that what ever was happening before the Big Bang it sure won't affect what is happening afterwards. Yet I wonder what exploded in BB: -was it a gigant planet, star or similar or...
  44. U

    Theory of the big bang and other universes

    I'm not sure if this has been theorized before by anyone but this is what I came up with as a theory as to how universes are formed and how "big bangs" occurr. I'm only in high school and haven't taken physics but I don't see how this can be ruled out all together. Basically this is about black...
  45. J

    Big Bang Worries: Can We See It?

    I know that looking back in space is looking back in time. I also know that seeing the Big Bang should be beyond us in space time. I believe that we are on the edge of the bubble, that is space time, If we could see far enough back, or far enough out, we could see the Big Bang. Why or Why not...
  46. Nibles

    Big Bang at every point in space?

    How does a Big Bang occur at every point in space. It is easy to comprehend something exploding at a point and sending everything outwards, but if something explodes (if we are even talking about the Universe exploding) at every point on and in itself, wouldn't it blow itself up or something...
  47. S

    Question concerning the origin on the big bang

    from my understanding,the current understanding of the big bang is a small space packed with immense amounts of particles that " exploded " and in turn created the universe and everything in it.The big question, again from my understanding, is where did all of this material come from in the...
  48. N

    Any recommendations on easy to read books about The Big Bang

    Any recommendations on easy to read books about The Big Bang. Thanks Nautica
  49. marcus

    Quantizing GR to Fix Big Bang Singularity: Research Roundup

    Really should call it "Big Bounce" instead of Big Bang. Yesterday another paper was posted at the Los Alamos arxiv about getting rid of the Big Bang glitch by quantizing General Relativity. Martin Bojowald started this line of research but more people are getting into it, the new paper is...
  50. R

    The Big Bang Revisited: A New Theory on the Precision of Initial Parameters

    I originally posted this in Theory Developement. It got a number of looks but no responses. I have posted it here where it probably belongs to see if it gets any reponses. During the last few years I have read a number of books on The Big Bang including recently one By John Gibbin; "In...
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