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Topic: Timeline of the Big Bang


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In the News (Tue 10 Nov 09)

  
  Big Bang - Wikipedia, the free encyclopedia
The Big Bang theory is based on the observed Hubble's law redshift of distant galaxies that when taken together with the cosmological principle indicate that space is expanding according to the Friedmann-Lemaître model of general relativity.
The Big Bang theory predicted the existence of the cosmic microwave background radiation or CMB which is composed of photons emitted during baryogenesis.
Using the Big Bang model it is possible to calculate the concentration of helium-4, helium-3, deuterium and lithium-7 in the universe as ratios to the amount of ordinary hydrogen, H. All the abundances depend on a single parameter, the ratio of photons to baryons.
en.wikipedia.org /wiki/Big_Bang   (5919 words)

  
 Timeline of the Big Bang - Wikipedia, the free encyclopedia
This timeline of the Big Bang describes the events that have occurred and will occur according to the scientific theory of the Big Bang.
The first stars, most likely Population III stars, form and start the process of turning the light elements that were formed in the Big Bang (hydrogen, helium and lithium) into heavier elements.
From the Big Bang to the End of the Universe - The Mysteries of Deep Space Timeline.
en.wikipedia.org /wiki/Timeline_of_the_Big_Bang   (1723 words)

  
 Timeline of the Big Bang Article, TimelinetheBigBang Information   (Site not responding. Last check: 2007-11-07)
According to the Big Bang theory, a sequence of events describedbelow is believed to have taken place starting 13.7 ± 0.2 billion years ago, a time at which in general relativity there is a gravitational singularity.
Stephen Hawking has theorized that the events of the Big Bang (theexpansion of a singularity into the current spacetime continuum) can be seen as a reversal of the events that occur in a fl hole, where space-time condenses into a singularity.
Three minutes after the Big Bang, the universe is too cool for nuclear activity tooccur, and these reactions stop.
www.anoca.org /epoch/universe/timeline_of_the_big_bang.html   (1290 words)

  
 timelinefirstpage.html
Since I think that it is important to understand the "Big Picture, " understand the origin of matter, of which all living systems and everything else, is made, I start the timeline at the Big Bang.
You can choose to start your timeline at the Big Bang, or start your timeline at the formation of the solar system some five (5) billions of years ago.
The arrow should be closest to the "Now" line, the top of drawing closest to the "Big Bang" line, don't place the drawings sideways on the timeline.
www.fresno.k12.ca.us /schools/s090/_atkinsgatebio/timelineproject/tmlinefstpage.htm   (435 words)

  
 Timeline of the Big Bang at opensource encyclopedia   (Site not responding. Last check: 2007-11-07)
According to the Big Bang theory, a sequence of events described below is believed to have taken place starting 13.7 ± 0.2 billion years ago, a time at which in general relativity there is a gravitational singularity.
Similarly, during the Big Bang, entities froze out and decoupled from the rest of the soup that made up the universe.
This timeline refers to the diameter of "the universe".
www.wiki.tatet.com /Timeline_of_the_Big_Bang.html   (1354 words)

  
 The Big Bang Model
The "Big Bang" is the term given to what is currently the most widely accepted scientific model for the origin and evolution of the Universe.
Astronomers are able to measure the relative amounts of the light nuclei hydrogen, deuterium (an isotope of hydrogen with one proton and one neutron), helium-3, helium-4 and lithium-7 in distant, unmixed clouds of primordial gas.
The Big Bang model successfully accounts for the formation of the light elements, hydrogen, helium and traces of lithium and their isotopes from fundamental particles.
outreach.atnf.csiro.au /education/senior/cosmicengine/bigbang.html   (2017 words)

  
 The Universe
Assuming the validity of the Big Bang theory (and it is only a theory, albeit one that has a lot of evidence going for it), the universe can be defined in terms of time, space, and temperature.
The current explanation for this observation is that about 3/4 of the energy from the Big Bang is not in the form of matter but in the vacuum itself and that this vacuum energy is creating a negative pressure that accelerates the expansion of the universe.
So the book-keeping seems to be that about 70% of the energy in the universe is in the vacuum, about 5% is in the form of normal matter (protons, planets, stars,galaxies, etc.), and the remaining 25% is "dark matter", mysterious invisible particles that inhabit the haloes of galaxies.
www.kheper.net /cosmos/universe/universe.htm   (772 words)

  
 ipedia.com: Astronomy Article   (Site not responding. Last check: 2007-11-07)
The existence of our galaxy, the Milky Way, as a separate group of stars was only proven in the 20th century, along with the existence of "external" galaxies, and soon after, the expansion of the universe seen in the recession of most galaxies from us.
Cosmology made huge advances during the 20th century, with the model of the big bang heavily supported by the evidence provided by astronomy and physics, such as the cosmic microwave background radiation, Hubble's Law and cosmological abundances of elements.
Timeline of the interstellar medium and intergalactic medium
www.ipedia.com /astronomy.html   (1562 words)

  
 Wikinfo | Cosmic microwave background radiation   (Site not responding. Last check: 2007-11-07)
This radiation is regarded as the best available evidence of the Big Bang theory -- it gives a snapshot of the Universe when the temperature dropped enough to allow electrons and protons to form hydrogen atoms, thus making the universe transparent to radiation.
When it originated some 300,000 years after the Big Bang -- this point in time is generally known as the "last scattering surface" -- the temperature of the Universe was about 6000 K.
This could mean that the particular original form of the energy contents of the Universe (and it associated conditions) before recombination is uniform (something that the big bang model does not account for fully).
www.wikinfo.org /wiki.php?title=Cosmic_microwave_background_radiation   (747 words)

  
 List of themed timelines   (Site not responding. Last check: 2007-11-07)
Timeline is a 1999 science fiction novel by Michael Crichton
Timeline is a 2003 film based on the novel.
General: List of years in science, Timeline of scientific discoveries, Timeline of scientific experiments
uncover.us /en/wikipedia/l/li/list_of_themed_timelines.html   (226 words)

  
 Logarithmic timeline -   (Site not responding. Last check: 2007-11-07)
The most natural zero point is the Big Bang, looking forward, but the most common is the ever-changing present, looking backward.
Logarithmic timelines have also been used in future studies to justify the idea of a technological singularity.
In this table each row is defined in seconds after the Big Bang, with earliest at the top of the chart.
psychcentral.com /psypsych/Logarithmic_timeline   (536 words)

  
 Science and Reason: The Big Bang
The big bang theory of the initial state and subsequent development of the universe was originated around 1931 by Georges Lemaître and further developed in the 1940s by George Gamow and his students Ralph Alpher and Robert Herman.
the theory of the big bang – the notion that at some point in time about 14 billion years ago (by current reckoning), all matter in the observable universe was in a state of extremely high density and temperature, and subsequently "exploded", resulting in the expansion we still see today.
One consequence of the homogeneity condition is that the big bang event (if such existed, which isn't in fact absolutely required in all versions of the model) didn't happen at one particular point in space.
www.scienceandreason.net /oq/oq-co008.htm   (20702 words)

  
 Big Bang Tantalum
"Big Bang" the fated name for a watch whose powerful statement glorifies the ultimate watchmaking brand with the singular and timeless design: HUBLOT.
The sides of the "Big Bang" make it stand apart from other timekeepers due to two aspects.
Big Bang offers an exclusive "Limited Edition" in 18K red gold with Tantalum bezel and Black Dial produced in "250 pieces" and another version with Ruthenium dial also in "250 pieces".
www.timelinevista.com   (143 words)

  
 Global Change 1: The Evolution of the Universe
If the big bang occurred, the initial temperatures must have been so unimaginably high that matter could only have existed in exotic and unstable forms.
The Big Bang theory predicts that such radiation is the red-shifted remnant of the radiation released when matter and light became decoupled about 1 million years after the Big Bang.
At ~1 million years after the Big Bang, temperatures cool sufficiently to allow hydrogen- and helium-neutral atoms to form from the plasma (charged particles).
www.globalchange.umich.edu /globalchange1/current/lectures/universe/universe.html   (1336 words)

  
 Big bang
You hear the mortar (the really BIG ones) launch (poof) then a few seconds later (BANG!!!) the entire sky is lit up so bright that you can hardly look at it (on top of the fact that you are now deaf).
What was the state of the marble before the big bang?, How long the marble lived as a marble?.
Were there pre- Big bang conditions that do not conform to post big bang conditions, and perhaps there are interim big bang conditions we have no knowledge or evidence of.
lofi.forum.physorg.com /Big-bang_5481.html   (3480 words)

  
 The Christian Science Monitor | csmonitor.com   (Site not responding. Last check: 2007-11-07)
In one of its earliest formulations, inflation was invoked after the big bang as a way to prod the universe toward its present size.
But it still required scientists to accept initial conditions for the big bang that seemed to defy explanation through known physics and, in any case, couldn't be tested.
As inflationary theories have evolved, proponents say, they appear to have solved several problems the big bang couldn't shake, not the least of which is that inflation's initial conditions - hence those of the universe, if inflation is correct - are grounded in current theories of particle physics.
www.csmonitor.com /cgi-bin/durableRedirect.pl?/durable/1999/03/11/f-p15s1.shtml   (1251 words)

  
 BIG BANG : Formation of the Universe - Timeline Index
BIG BANG : Formation of the Universe - Timeline Index
The Big Bang is dated according to NASA.
Hubble had also devised a classification system for the various galaxies he observed, sorting them by content, distance, shape, and brightness; it was then he noticed...
www.timelineindex.com /content/view/536   (205 words)

  
 Multiverse -   (Site not responding. Last check: 2007-11-07)
According to some quantum loop gravity theorists, the Big Bang was merely the beginning of a period of expansion that followed a period of contraction.
In this oscillatory universe hypothesis (originally attributable to John Wheeler), the universe undergoes an infinite series of oscillations, each beginning with a big bang and ending with a big crunch.
After the big bang, the universe expands for a while before the gravitational attraction of matter causes it to collapse back in and undergo a Big bounce.
psychcentral.com /psypsych/Alternate_universe   (2735 words)

  
 When did time begin?
So far how the big bang came about and whether there is any meaning to "before" the big bang is unknown and perhaps unknowable.
There are many scientific speculations/hypotheses about what caused the Big Bang (suggesting a timeline "before" the Big Bang in some form).
Contemporary cosmologists espouse a Theory of Singularity - or Big Bang - which envisions a Universe cast from the bowels of a spontaneous cosmic eruption.
www.physicsforums.com /showthread.php?threadid=79248   (2507 words)

  
 Ummah.com - The expansion of the universe [harun yahya]
The Big Bang theory showed that in the beginning all the objects in the universe were of one piece and then were parted.
However, there are theories that support the big bang that don't require the expansion of the universe as proof.
There is the real timeline which the big bang travels on, then there is the time that humans percieve.
www.ummah.net /forum/printthread.php?t=2318   (3356 words)

  
 what caused the big bang? - Above Top Secret Conspiracy Community
frankly, the idea of the Big Bang is old and has been covered to great lengths for anyone to start researching on their own.
Then the Big Bang theory is wrong, (According to the Big Bang theory, some 10 to 20 billion years ago, all of the matter and energy of the universe was compressed into a cosmic egg, or plasma ball, consisting of sub-atomic particles and radiation.
This is necessary astronomy for a Big Bang theory.
www.abovetopsecret.com /forum/thread12143/pg3   (3935 words)

  
 Big bang theory - Unexplained Mysteries Discussion Forums
During the Stelliferous Era, from 10,000 years to 100 trillion years after the Big Bang, most of the energy generated by the universe is in the form of stars burning hydrogen and other elements in their cores.
I didn't realise that scientists could actually pinpoint the events of the big bang in terms of the first few seconds, although i suppose that derives from experiments and witnessing other events in space.
We dont have immunities to cancer because cancer is just a lack of certain vitamins and minerals, when you go for sixty years with only a fraction of the minerals you need to balance out your system deficiencies develop in the form of disease.
www.unexplained-mysteries.com /forum/index.php?showtopic=40488   (2540 words)

  
 The Big Bang (one more time) | csmonitor.com
Drawing on quantum physics and Einstein's theories of relativity, the inflationary big bang begins 11 billion to 15 billion years ago, when a random change in an astonishingly small bit of all-encompassing vacuum grew very rapidly.
The problem emerged from efforts in the late 1970s to develop grand unified theories to describe the emergence of three of the four forces of nature and the associated subatomic particles from the big bang.
On the membrane humans inhabit, the bang yields the particles, energy, and forces familiar to scientists.
www.csmonitor.com /2002/0509/p11s01-stss.html   (1220 words)

  
 Facts about big four   (Site not responding. Last check: 2007-11-07)
There are two places named Big Four in the United States.
Big Four is often used as a nickname:
An assessment of the implications for competition of a cap on auditors'...
www.supercrawler.com /Facts/big_four.html   (234 words)

  
 Big Bang Theory
The theory of a Hot Big Bang is the most widely accepted hypothesis for the origin of the universe, but it still leaves many questions unanswered.
But, perhaps the most daunting question is: "What existed before the Big Bang?" These are questions that are very difficult to answer.
They form their theories based on what they observe, and luckily Big Bang theory seems to fit rather nicely to these observations.
cmb.physics.wisc.edu /tutorial/bigbang.html   (672 words)

  
 Timelines
Britian's Rocky Past; from the Big Bang to the present - This interactive timeline begins with a fascinating animation.
Strange Science timeline - This list chronicles some of the major events in the history of paleontology and biology.
Make your own Timeline, thanks to Teachnology - (scroll down past the membership information) Their generator can be used to make time lines of up to 9 events of your choice.
www.internet4classrooms.com /timelines.htm   (1003 words)

  
 Site Transfer to Timeline by Atkins   (Site not responding. Last check: 2007-11-07)
This excellent online timeline gives students the "Big Picture", ties everything together, from the Big Bang to the present.
You have the option of starting at the Big Bang or the beginning of our solar system.
This timeline project grew out of Thomas Atkins' "History of Life Curriculum", essentially an integrated science program which effectively ties it all together.
www.indiana.edu /~ensiweb/timeline.html   (174 words)

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