Köp ett liv Posted September 23, 2011 Share Posted September 23, 2011 Speed-of-light experiments give baffling result at Cern Puzzling results from Cern, home of the Large Hadron Collider, have confounded physicists because subatomic particles seem to have beaten the speed of light. Neutrinos sent through the ground from Cern toward the Gran Sasso laboratory 732km away in Italy seemed to show up a tiny fraction of a second early. The results - which threaten to upend a century of physics - were put online for scrutiny by other scientists. In the meantime, the group says it is being very cautious about its claims. They will be discussing the result in detail in a conference at Cern on Friday afternoon, which can be viewed online. "We tried to find all possible explanations for this," said report author Antonio Ereditato of the Opera collaboration. "We wanted to find a mistake - trivial mistakes, more complicated mistakes, or nasty effects - and we didn't," he told BBC News. "When you don't find anything, then you say 'Well, now I'm forced to go out and ask the community to scrutinise this.'" The speed of light is the Universe's ultimate speed limit, and much of modern physics - as laid out in part by Albert Einstein in his theory of special relativity - depends on the idea that nothing can exceed it. Continue reading the main story Thousands of experiments have been undertaken to measure it ever more precisely, and no result has ever spotted a particle breaking the limit. But Dr Ereditato and his colleagues have been carrying out an experiment for the last three years that seems to suggest neutrinos have done just that. Neutrinos come in a number of types, and have recently been seen to switch spontaneously from one type to another. The team prepares a beam of just one type, muon neutrinos, sending them from Cern to an underground laboratory at Gran Sasso in Italy to see how many show up as a different type, tau neutrinos. In the course of doing the experiments, the researchers noticed that the particles showed up 60 billionths of a second sooner than light would over the same distance. This is a tiny fractional change, but one that occurs consistently. The team measured the travel times of neutrino bunches some 15,000 times, and have reached a level of statistical significance that in scientific circles would count as a formal discovery. But the group understands that what are known as "systematic errors" could easily make an erroneous result look like a breaking of the ultimate speed limit. That has motivated them to publish their measurements. "My dream would be that another, independent experiment finds the same thing - then I would be relieved," Dr Ereditato said. But for now, he explained, "we are not claiming things, we want just to be helped by the community in understanding our crazy result - because it is crazy". "And of course the consequences can be very serious." http://www.bbc.co.uk/news/science-environment-15017484 http://www.bbc.co.uk/news/science-environment-15034414 “Though the modern world may know a million secrets, the ancient world knew one - and that one was greater than the million; for the million secrets breed death, disaster, sorrow, selfishness, lust, and avarice, but the one secret confers life, light, and truth.” Link to comment Share on other sites More sharing options...
Prótese Posted September 23, 2011 Share Posted September 23, 2011 Link to comment Share on other sites More sharing options...
Psiconauta Posted September 23, 2011 Share Posted September 23, 2011 Thanx pelos links e pela info Köp! Brutal. Os neutrinos, esses grandas malucos. Antes de estar já lá estão. heheheheh Link to comment Share on other sites More sharing options...
Bluesense Posted September 23, 2011 Share Posted September 23, 2011 ya também vi isso hoje no telejornal da hora do almoço...lá se foi a teoria da relatividade = Too Much Happiness Make Kids Paranoid = Link to comment Share on other sites More sharing options...
yada Posted September 24, 2011 Share Posted September 24, 2011 Einstein não gosta disto! Link to comment Share on other sites More sharing options...
yoda Posted September 24, 2011 Share Posted September 24, 2011 Idiotas .. Link to comment Share on other sites More sharing options...
Köp ett liv Posted September 24, 2011 Author Share Posted September 24, 2011 Calma que eles ainda nao provaram.. só disseram que nao conseguem perceber e por isso teem que pedir ajuda a toda a comunidade cientifica para ver se alguem encontra algum erro com os dados. Talvez viagens no tempo sejam mesmo possiveis, quem sabe, o universo é bem mais esquesito do que alguem pode imaginar. Tomem mais um link da wiki com informaçao interessante pra quem gosta destes assuntos.. http://en.wikipedia.org/wiki/Faster-than-light É como aquelas particulas que teem comportamentos diferentes caso sejam observadas ou nao, talvez o acto de observar crie a materia e as coisas só existem porque há alguem a observar a materia. heheh estas cenas até me fazem doer a cabeça mas no bom sentido. aqui vai um video a explicar a experiencia das particulas envergonhadas http://www.youtube.com/watch?v=yhYBwLysvB8 “Though the modern world may know a million secrets, the ancient world knew one - and that one was greater than the million; for the million secrets breed death, disaster, sorrow, selfishness, lust, and avarice, but the one secret confers life, light, and truth.” Link to comment Share on other sites More sharing options...
Köp ett liv Posted March 17, 2012 Author Share Posted March 17, 2012 parece que afinal era falso alarme.. An experiment to repeat a test of the speed of subatomic particles known as neutrinos has found that they do not travel faster than light. “Though the modern world may know a million secrets, the ancient world knew one - and that one was greater than the million; for the million secrets breed death, disaster, sorrow, selfishness, lust, and avarice, but the one secret confers life, light, and truth.” Link to comment Share on other sites More sharing options...
Bluesense Posted March 17, 2012 Share Posted March 17, 2012 boa noticia = Too Much Happiness Make Kids Paranoid = Link to comment Share on other sites More sharing options...
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