saveliberty
Diamond Member
- Oct 12, 2009
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The people are CERN are shitheads. It really makes you question their qualifications.
Educated people who heard the initial reports knew it was a measurement error. It's like if you test a dozen random Afros you get an average IQ above room temperature, you know you screwed up. There's no excuse to run around announcing that the universe isn't what we thought it was.
Essentially, the equation says that mass and energy are intimately related. Atom bombs and nuclear reactors are practical examples of the formula working in one direction, turning matter into energy. But until now there has been no way to do the reverse, turn energy into matter. What makes it particularly hard is that c2 term, the speed of light squared. It accounts for the huge amounts of energy released in nuclear reactions, and the huge amount you’d need to inject to turn energy into matter. Previous experiments have always required a little bit of mass, even if it was only an electron’s worth.
But scientists at Imperial College London (including a visiting physicist from Germany’s Max Planck Institute for Nuclear Physics) think they’ve figured out how to turn energy directly into matter. Oliver Pike, Felix Mackenroth, Edward Hill and Steve Rose have suggested a way to turn a pair of photons, particles of light, into an electron and its antiparticle, a positron. They came up with the idea in less than a day, over several cups of coffee at Imperial’s Blackett Physics Laboratory.
They started off talking about fusion, but realised their work could be applied to an earlier problem, an idea proposed by two US scientists, Gregory Breit and John Wheeler, in 1934. Breit and Wheeler, who went on to work on America’s Manhattan Project to build the first A-bomb, thought it was theoretically possible to smash two photons together to produce an electron and a positron. “Despite all physicists accepting the theory to be true, when Breit and Wheeler first proposed the theory, they said that they never expected it be shown in the laboratory,” said Professor Rose. “Today, nearly 80 years later, we prove them wrong.”
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Albert Einstein’s famous formula triumphs again
Their article in Nature Photonics proposes that a new kind of collider be built, one that smashes photons instead of protons, as at the Large Hadron Collider at CERN where the Higgs boson was discovered last year. Their accomplishment has huge implications, not only does it yet again prove an aspect of Einstein’s theories, it recreates a “process that was important in the first 100 seconds of the universe and that is also seen in gamma ray bursts, which are the biggest explosions in the universe,” said Imperial.
The first step would be to accelerate electrons with a high-energy laser to just below the speed of light (300,000km/s) and smash them into a slab of gold, which would create a beam of light a billion times more intense than the light from the Sun. This would be aimed into a hollow gold shell called a hohlraum (German for empty room). The shell would be excited by another laser to create a thermal radiation field that emits light akin to starlight.
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