tagged w/ Big Bang
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If you answer this question without making me laugh, I'll become an atheist instantly...If you answer this question without making me laugh, I'll become an atheist... more
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Physicists can't see it and don't know much about what it is, but dark energy makes up 70 percent of the universe. Meet one of the country's leading scientists trying to understand dark energy and the role it plays in causing our universe to expand.Physicists can't see it and don't know much about what it is, but dark... more
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Friday Pick #5 - These geniuses are going to probe the origins of the universe... Sarah Palin is not too happy about this I'm sure.Friday Pick #5 - These geniuses are going to probe the origins of the universe...... more
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Part of the computer system of the Large Hadron Collider (LHC) was hacked into as the world's most powerful physics experiment got under way.
A group calling itself the "Greek Security Team" hacked into a computer connected to the system last Wednesday.
A spokesman for Cern, the lab that houses the LHC, said the hackers put up a message on the facility's website. Part of the computer system of the Large Hadron Collider (LHC) was hacked into as the... more
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Part of the computer system of the Large Hadron Collider (LHC) was hacked into as the world's most powerful physics experiment got under way. A group calling itself the "Greek Security Team" hacked into a computer connected to the system last Wednesday.
A spokesman for Cern, the lab that houses the LHC, said the hackers put up a message on the facility's website. No harm was done but the incident has highlighted the need for security in the LHC's network, the spokesman said.
The hackers had targeted the computer network of the Compact Muon Solenoid Experiment (CMS), a huge detector that analyses data from the particle accelerator.
With the world watching as the first particles began circulating in the LHC, engineers were searching the hacked computer for possible malicious damage.
The CMS website displayed a page with a mocking message, in Greek, which included the line: "We are 2600 - don't mess with us". As a result of the attack, the CMS webpage www.cmsmon.cern.ch, can no longer be viewed.
Cern spokesman James Gillies said that the compromised computer was not connected to the accelerator itself.
"The computer is used to monitor one of the experiments at the LHC, it's nothing to do with the LHC accelerator itself or any of the control systems," he said.
Mr Gillies said the LHC had a general access network and a more restricted access network which controls the sensitive systems.
"As far as I understand there was one user somewhere - who wasn't a hacker - who uploaded something on to this machine and inadvertently introduced a weakness that allowed people to get in," he said.
"Our IT department is constantly reminding the experimental collaborators of security issues regarding the network and will continue to do so," he said. "This may have strengthened their message."
The number 2600 is often used by the hacking community. It is believed to have originated in the US in the 1960s with the discovery that a tone of 2600Hz played down the line could be used to access restricted parts of the national telephone system.
Part of the computer system of the Large Hadron Collider (LHC) was hacked into as... more
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JJ3000
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3 years ago
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The Large Hadron Collider (aka the Big Bang Machine) at CERN has been switched on and, counter to some doomsday predictions, we are still alive. Here are 10 other dates in history when apocalyptic predictions failed to come true:
Oct 3 1533 - Michael Stifel, a German associate of Martin Luther, urged his small band of followers to sell all their property after becoming convinced by his mathematical study of the Bible that the end of the world was approaching. On the appointed day he led his followers to the top of a hill so they could be delivered to heaven. A few hours later, with the world very much intact, he hurried down the hill and had to be locked in a local prison for his own protection.
Oct 22 1844 - Millerites, followers of the American Baptist preacher William Miller, became convinced that the end of the world had been predicted in Daniel 8:14. After a few false dawns, the date was set as Oct 22 1844. That day is now known, for obvious reasons, as the Great Disappointment. Most Millerites subsequently rejected their faith.
1914 – Jehovah’s Witnesses have now stopped predicting exact dates for the end of the world after a string of high-profile failures. Charles Taze Russell, who founded the Watch Tower magazine, calculated that Jesus Christ would impose his rule on earth in 1914. The outbreak of the First World War seemed to lend support to his Armageddon prediction, but there was no Second Coming.
1969 – Charles Manson believed that simmering racial tensions in the US would erupt into an Apocalyptic race war, after which his band of criminals – the “Manson Family” – would rule the world. When no race war erupted, his gang began a killing spree to “show the blacks how to do it”. Manson is currently serving life for murder.
1980s – The US evangelist Hal Lindsey believed that Armageddon would follow the expansion of the EU into a 10 country United States of Europe ruled by the Antichrist. He never set a date for the end of the world but hinted that a final battle between good and evil was imminent. He still broadcasts his biblical prophecies on evangelist networks.
Sept 11-13 1988 - Former Nasa engineer Edgar Whisenant sold 4.5 million copies of his book 88 Reasons Why the Rapture Could Be in 1988, mostly to evangelical US Christians. Follow-up works, which revised the prediction for dates in the 1990s, failed to sell as well.
1993 - David Koresh and more than 100 followers barricaded themselves into the Branch Davidian ranch in Waco, Texas, to await the end of the world. They were surrounded by the FBI in a 51-day siege that was only ended by a fire that killed 76 of those inside, including Koresh.
Match 1997 – Members of UFO cult Heaven's Gate believed that the appearance of the Hale-Bopp comet signaled that the Earth was due for imminent destruction. The only way to “survive” the end of the world was to commit suicide so their souls could board a spaceship travelling behind the comet. The bodies of 38 devotees were found in a house in California on March 26.
Jan 1 2000 – Dozens of Christian cults predicted the turn of the millennium would coincide with the Second Coming of Christ and the end of the world. Concerns that the Y2K computer bug would collapse computer systems stoked an atmosphere of impending doom. But, as ever, life went on as normal. Carlos Roa, the Argentine goalkeeper who declined to negotiate a new contract at his Spanish club because he was convinced the world would end, returned later in the season.
May 2008 – Thirty-five members of a cult called the True Russian Orthodox Church spent six months in a cave in anticipation of the apocalypse predicted by their leader Pyotr Kuznetsov. They began to emerge from their makeshift underground home after the roof began to collapse in March. Kuznetsov, who never accompanied his followers into the cave, has been ordered to undergo psychiatric treatment by a Russian court.
The Large Hadron Collider (aka the Big Bang Machine) at CERN has been switched on and,... more
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Big Bang
First test a success as scientist fire up CERN super-collider
Reuters Life!
Wednesday, September 10, 2008
GENEVA - Scientists at the European Organisation for Nuclear Research (CERN) started up a huge particle-smashing machine on Wednesday, aiming to re-enact the conditions of the “Big Bang” that created the universe.
The Large Hadron Collider (LHC) is the largest and most complex machine ever made and the platform for what experts say is the largest scientific experiment in human history.
Tests conducted inside the tightly-sealed chamber, buried under the Swiss-French border, could unlock the remaining secrets of modern physics and answer questions about the universe and its origins.
The 10 billion Swiss franc ($9 billion) machine’s debut came as a blip on a screen in CERN’s control room, with a particle beam the size of a human hair appearing in the tightly-sealed 27-kilometre circular tunnel.
“We’ve got a beam on the LHC,” project leader Lyn Evans told his colleagues, who burst into applause at the news.
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http://www.canada.com/ottawacitizen/news/story.html?id=12f39579-e3a9-45e9-a066-7a8ce2cc54e9
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Large Hadron Collider: Best- and Worst-Case Scenarios
By Alexis Madrigal
Wired
September 09, 2008 | 7:34:09 PM
OMG! Have you heard that huge atom smasher in Europe powers up for the first time tomorrow?
Of course you have. You’ve also heard it repeated over and over that the Large Hadron Collider is the biggest, most expensive scientific instrument in history and that it’s going to change our fundamental understanding of the universe.
Well, great, but what does that mean?
We break down how five major physics theories — and the theorists who’ve spent their lives developing them — may be impacted by the discoveries that could emanate from the LHC. We also provide answers to all your LHC FAQ in 140 characters or less, so you can send them to your friends on Twitter.
Basically, the collider is a series of tubes intended to guide protons as superconducting magnets propel them close to the speed of light. You can think of the LHC as the Disneyland of physics experiments. A host of different detectors have been designed to test which theoretical physicists’ math fits the real world.
[...]
http://blog.wired.com/wiredscience/2008/09/the-bosons-that.html
plus another 2 videos on some background at the above linkBig Bang
First test a success as scientist fire up CERN super-collider
Reuters... more
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The world's biggest physics experiment has succeeded in its first major test as a beam of protons was successfully fired all the way around a 17-mile tunnel beneath the Swiss-French border.The world's biggest physics experiment has succeeded in its first major test as a... more
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GENEVA (AP) -- It has been called an Alice in Wonderland investigation into the makeup of the universe - or dangerous tampering with nature that could spell doomsday.
Whatever the case, the most powerful atom-smasher ever built comes online Wednesday, eagerly anticipated by scientists worldwide who have awaited this moment for two decades.
The multibillion-dollar Large Hadron Collider will explore the tiniest particles and come ever closer to re-enacting the big bang, the theory that a colossal explosion created the universe.
The machine at CERN, the European Organization for Nuclear Research, promises scientists a closer look at the makeup of matter, filling in gaps in knowledge or possibly reshaping theories.
The first beams of protons will be fired around the 17-mile tunnel to test the controlling strength of the world's largest superconducting magnets. It will still be about a month before beams traveling in opposite directions are brought together in collisions that some skeptics fear could create micro "black holes" and endanger the planet.
The project has attracted researchers of 80 nationalities, some 1,200 of them from the United States, which contributed $531 million of the project's price tag of nearly $4 billion.
"This only happens once a generation," said Katie Yurkewicz, spokeswoman for the U.S. contingent at the CERN project. "People are certainly very excited."
The collider at Fermilab outside Chicago could beat CERN to some discoveries, but the Geneva equipment, generating seven times more energy than Fermilab, will give it big advantages.
The CERN collider is designed to push the proton beam close to the speed of light, whizzing 11,000 times a second around the tunnel 150 to 500 feet under the bucolic countryside on the French-Swiss border.
Once the beam is successfully fired counterclockwise, a clockwise test will follow. Then the scientists will aim the beams at each other so that protons collide, shattering into fragments and releasing energy under the gaze of detectors filling cathedral-sized caverns at points along the tunnel.GENEVA (AP) -- It has been called an Alice in Wonderland investigation into the makeup... more
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ivxx
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3 years ago
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Rather than providing vital information about the beginning of life, the world's biggest experiment could cause the end of the world, say scientists.
They fear that the Large Hadron Collider - due to be switched on in nine days' time - will create a black hole that could swallow the planet.Rather than providing vital information about the beginning of life, the world's... more
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jgreak
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added this
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3 years ago
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An experiment to find out the secrets of the big bang could create a blackhole and destroy the Earth, claim sciencists.
By smashing sub-atomic particles together at speeds close to the speed of light, the LHC aims to recreate the conditions that existed a fraction of a second after the Big Bang.
But critics claim that the 'time machine' could instead spawn a shower of mini-black holes, which could grow exponentialy and swallow the Earth.An experiment to find out the secrets of the big bang could create a blackhole and... more
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Rappin' about CERN's large hadron collider! It explains what the LHC is actually all about.Rappin' about CERN's large hadron collider! It explains what the LHC is... more
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Have you ever wondered how the Universe started? How did we get here? And what other secrets are out in space?
On September 10, scientists at the European Organization for Nuclear Research (CERN) will try to answer these and other questions by re-creating the conditions that existed just billionths of a second after the Big Bang.
The BBC will join scientists as they switch on the Large Hadron Collider (LHC), a giant subterranean machine that will probe the mysteries of the cosmos.
By smashing together tiny particles, it is hoped that the LHC will reveal the origins of mass, show us what all the invisible matter in the cosmos is made of, and perhaps even create mini black holes.
Professor Brian Cox is one of the LHC scientists and a physicist at CERN. He is on hand to answer your questions about the project and what could be found ...Have you ever wondered how the Universe started? How did we get here? And what other... more
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"Star light, star bright. The first star grew fast, but began slight. The first cosmological object formed in the universe was a tiny protostar with a mass of about 1 percent of our sun, according to U.S. and Japanese researchers who spent years developing a complex computer simulation of what it was like after the Big Bang that formed the universe.
This protostar was surrounded by a giant mass of gas and it grew to 100 times the sun's mass over about 10,000 years, according to Naoki Yoshida of Nagoya University in Japan. That is very rapid growth on a cosmic scale.
"The first stars were very different from stars like the sun," explained Harvard astronomy professor Lars Hernquist, co-author of a paper describing the findings in Friday's issue of the journal Science.
While the sun is mostly hydrogen, it also contains oxygen and carbon, he said. The early stars were primarily hydrogen and helium, and were much more luminous and had a shorter life.
"These differences have important implications for what happened afterward," he said at a teleconference.
"This general picture of star formation, and the ability to compare how stellar objects form in different time periods and regions of the universe, will eventually allow investigation into the origins of life and planets," Hernquist said.
The study may prove to be a "Cosmic Rosetta stone" suggested Volker Bromm, an assistant astronomy professor at the University of Texas.""Star light, star bright. The first star grew fast, but began slight. The first... more
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"The first object to brighten the dark, primordial universe after the Big Bang was the tiny seed of a star that rapidly grew into a behemoth 100 times more massive than the sun, scientists said on Thursday.
This first generation of stars apparently lived hard and died quickly. While our sun may live 5 billion years, this first generation of stars likely lasted only a slim fraction of that -- about 1 million years, the researchers said.
Scientists think the universe was born in a Big Bang explosion 13.7 billion years ago and has been expanding ever since. But they have struggled to understand how the first stars formed in the aftermath of this cataclysm.
Japanese and U.S. astronomers ran a sophisticated computer simulation that showed how some of the hydrogen and helium gases strewn throughout the young universe came together to form the first generation of stars.
'If we want to understand how things came about and look the way they do now, we have to go back in time and understand how stars looked when they first began to form,' said Lars Hernquist of Harvard University in Massachusetts.
While none of the stars survive today, their influence remains."
Picture: http://www.nytimes.com/2008/08/01/science/space/01stars.html?_r=1&oref=slogin
An image from a computer simulation depicting the universe 300 million years after the Big Bang. The first stars blew bubbles of ionized radiation (blue) into the surrounding primordial gas (green).
"The first object to brighten the dark, primordial universe after the Big Bang... more
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