Wat is Big Bang Test?
We all are interested in knowing details on Big Bang test,here is the wonderful updated article with rare collection of photos on big bang test.To know about Big Bang Test we should know ,wat is BIG BANG THEORY.
BIG BANG THEORY :
The name "Big Bang" was coined in 1949 by British scientist Fred Hoyle to disparage a then emerging theory about origins that countered his own "steady state" view,that the universe had always existed and was evolving but not expanding.
According to the Big-Bang model, the universe expanded rapidly from a highly compressed primordial state, which resulted in a significant decrease in density and temperature. Soon afterward, the dominance of matter over antimatter (as observed today) may have been established by processes that also predict proton decay. During this stage many types of elementary particles may have been present. After a few seconds, the universe cooled enough to allow the formation of certain nuclei.
The theory predicts that definite amounts of hydrogen, helium, and lithium were produced. Their abundances agree with what is observed today. About 1,000,000 years later the universe was sufficiently cool for atoms to form.
Now, lets look wat is Big Bang Test
Its Large Hadron Collider (LHC) - (Reuters) - The European Organisation for Nuclear Research, known as CERN, on Wednesday began an experiment to recreate conditions surrounding the Big Bang, which scientists believe gave birth to the universe.
(An underground representation of the Large Hadron Collider, which stretches for 27 kilometres)
Its Large Hadron Collider (LHC) will seek to collide two beams of particles at nearly the speed of light. Scientists will circulate a beam in one direction around the accelerator, then the other, later sending beams both ways to cause collisions.
WHAT IS CERN:
CERN, the European Organisation for Nuclear Research, is one of the world's largest and most respected centres for scientific research. Its business is fundamental physics, finding out what the Universe is made of and how it works.
Founded in 1954, the CERN Laboratory sits astride the Franco-Swiss border near Geneva. It was one of Europe's first joint ventures and now has 20 Member States, plus 6 actively participant observers including the United States and Russia.
Following are some facts about the Big Bang and CERN's particle-smashing experiment:
RECREATING THE BIG BANG:
The final tests involved pumping a single bunch of energy particles from the project's accelerator into the 27-km (17-mile) beam pipe of the collider and steering them counter- clockwise around it for about 3 km (2 miles).
(The four main points of interest that will be utilised during the LHC experiment)
The collider aims to simulate conditions milliseconds after the "Big Bang" which created the universe around 13.7 billion years ago.
The collisions, in which both particle clusters will be travelling at the speed of light, will be monitored on computers at CERN and laboratories around the world by scientists looking for, among other things, a particle that made life possible.
(ATLAS during its beam pipe installation)
The elusive particle, which has been dubbed the "Higgs Boson" after Scottish physicist Peter Higgs who first postulated nearly 50 years ago that it must exist, is thought to be the mysterious factor that holds matter together.
(Inside the Large Hadron Collider)
Recreating a "Big Bang," which most scientists believe is the only explanation of an expanding universe, ought to show how stars and planets came together out of the primeval chaos that followed, the CERN team believes.
Its essential feature is the emergence of the universe from a tiny speck about the size of a coin but in a state of extremely high temperature and density.
(ATLAS during the installation of its detector)
THE WORLD DIDN'T END
Physicists brushed off suggestions that the experiment could create tiny black holes that could suck in the planet.
"The worries that scientists had were nothing to do with being swallowed up by black holes and everything to do with technical hitches or electronic failure," said Jim al-Khalili, a physicist at Britain's University of Surrey.
"Now, after a collective sigh of relief, the real fun starts," al-Khalili said. "No matter what we find, we will be unlocking the secrets of the universe."
The LHC will send beams of subatomic particles called protons whizzing around the tube at just under the speed of light.
The hope is they will smash into one another and explode in a burst of new and previously unseen types of particles -- recreating on a miniature scale the heat and energy of the Big Bang that gave birth to the universe 13.7 billion years ago.
At full speed the LHC will engineer 600 million collisions every second. Data will be transmitted via a network called The Grid to scientists at 170 institutions in 33 countries.
"It is sort of a virtual United Nations," said Michael Tuts, a physics professor at Columbia University in New York and program manager for 400 U.S. physicists working on one LHC project.
The experiments could confirm the existence of the Higgs Boson, a theoretical particle named after Peter Higgs, who first proposed it in 1964.
Also referred to as the "God particle," the Higgs Boson could help explain how matter has mass. "I think it's pretty likely" that it will be found, Higgs told reporters at the University of Edinburgh, where he is a retired professor of physics.
Scientists halted the particle beam's counter-clockwise spin temporarily on Wednesday afternoon after problems with the machine's magnets caused its temperature to warm slightly.
CERN officials said such minor glitches were to be expected given the intricacy of the machine, which is cooled to minus 271.3 degrees Celsius (minus 456.3 degrees Fahrenheit).
Hence ,frnz..lets hope that the experiment will get ended in good manner..i hope this interesting article helps u to learn on the Big Tang Test
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