{"id":83,"date":"2008-09-11T00:59:46","date_gmt":"2008-09-10T18:59:46","guid":{"rendered":"http:\/\/hasibul.info\/blog\/?p=83"},"modified":"2008-09-11T00:59:46","modified_gmt":"2008-09-10T18:59:46","slug":"big-bang-experiment-was-successful","status":"publish","type":"post","link":"https:\/\/hasibul.info\/blog\/2008\/09\/11\/big-bang-experiment-was-successful\/","title":{"rendered":"Big Bang experiment was successful"},"content":{"rendered":"

By Paul Rincon <\/span>
\n Science reporter, BBC News<\/span><\/p>\n

Scientists have hailed a successful switch-on for an enormous experiment which will recreate the conditions a few moments after the Big Bang.<\/strong><\/p>\n

They have now fired two beams of particles called protons around the 27km-long tunnel which houses the Large Hadron Collider (LHC).<\/p>\n

The \u00a35bn machine on the Swiss-French border is designed to smash protons together with cataclysmic force.<\/p>\n

Scientists hope it will shed light on fundamental questions in physics. <\/p>\n

The first – clockwise – beam completed its first circuit of the underground tunnel at just before 0930 BST. The second – anti-clockwise – beam successfully circled the ring after 1400 BST.<\/p>\n

The beams have not yet been run continuously. So far, they have been stopped, or “dumped”, after just a few circuits.
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By Wednesday evening, engineers hope to inject clockwise and anti-clockwise protons again, but this time they will “close the orbit”, letting the beams run continuously for a few seconds each.<\/p>\n

Cern has not yet announced when it plans to carry out the first collisions, but the BBC understands that low-energy collisions could happen in the next few days. This will allow engineers to calibrate instruments, but will not produce data of scientific interest.<\/p>\n

“There it is,” project leader Lyn Evans said when the beam completed its lap. There were cheers in the control room when engineers heard of the successful test.<\/p>\n

He added later: “We had a very good start-up.”The LHC is arguably the most complicated and ambitious experiment ever built; the project has been hit by cost overruns, equipment trouble and construction problems. The switch-on itself is two years late.<\/p>\n

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The collider is operated by the European Organization for Nuclear Research – better known by its French acronym Cern.<\/p>\n

The vast circular tunnel – the “ring” – which runs under the French-Swiss border contains more than 1,000 cylindrical magnets arranged end-to-end.<\/p>\n

The magnets are there to steer the beam – made up of particles called protons – around this 27km-long ring.<\/p>\n

Eventually, two proton beams will be steered in opposite directions around the LHC at close to the speed of light, completing about 11,000 laps each second.<\/p>\n

At allotted points around the tunnel, the beams will cross paths, smashing together near four massive “detectors” that monitor the collisions for interesting events.<\/p>\n

Scientists are hoping that new sub-atomic particles will emerge, revealing fundamental insights into the nature of the cosmos.<\/p>\n

The Fear of Black Hole for which many people opposed the test:<\/strong><\/p>\n


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By Paul Rincon Science reporter, BBC News Scientists have hailed a successful switch-on for an enormous experiment which will recreate the conditions a few moments after the Big Bang. They have now fired two beams of particles called protons around the 27km-long tunnel which houses the Large Hadron Collider (LHC). The \u00a35bn machine on the…<\/p>","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":[],"categories":[14,13,6,1],"tags":[],"how-to":[],"_links":{"self":[{"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/posts\/83"}],"collection":[{"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/comments?post=83"}],"version-history":[{"count":0,"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/posts\/83\/revisions"}],"wp:attachment":[{"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/media?parent=83"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/categories?post=83"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/tags?post=83"},{"taxonomy":"how-to","embeddable":true,"href":"https:\/\/hasibul.info\/blog\/wp-json\/wp\/v2\/how-to?post=83"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}