The Collider, the Particle and a Theory About Fate

October 17, 2009

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Holger Bech Nielsen, of the Niels Bohr Institute in Copenhagen, and Masao Ninomiya of the Yukawa Institute for Theoretical Physics in Kyoto, Japan, have ended up with the theory that the Future is trying to stop us from creating a Higgs boson particle… While it is a paradox to go back in time and kill your grandfather, physicists agree there is no paradox if you go back in time and save him from being hit by a bus. In the case of the Higgs and the collider, it is as if something is going back in time to keep the universe from being hit by a bus. Although just why the Higgs would be a catastrophe is not clear. If we knew, presumably, we wouldn’t be trying to make one.

Site – http://www.nytimes.com


The World’s Biggest Laser Powers Up

March 26, 2009

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The most energetic laser system in the world, designed to produce nuclear fusion–the same reaction that powers the sun–is up and running. Within two to three years, scientists expect to be creating fusion reactions that release more energy than it takes to produce them. If they’re successful, it will be the first time this has been done in a controlled way–in a lab rather than a nuclear bomb, that is–and could eventually lead to fusion power plants.

Site – http://www.technologyreview.com


Asian nations vie for stake in moon

November 10, 2008

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When India’s Chandrayaan-1 lunar orbiter reaches its destination on 8 November, it will join two others – and neither is American, Russian or European. For the first time, probes from China, Japan and India will be orbiting the moon. This signals the latest stage in a new space race in which Asian nations are seeking a place alongside the established space powers. Both China and India are looking for helium-3 in the lunar crust as a possible fuel for nuclear fission reactors on Earth. The moon is estimated to have a millions tonnes of the stuff, the result of billions of years of bombardment by the solar winds.

Site – http://www.newscientist.com


ITER

September 11, 2008

After years of waiting, It was really satisfying yesterday to see the Large Hadron Collider (LHC) come online to an amazing amount of media coverage and be successful.  However, that was only the first test for the LHC and the really interesting stuff we are still waiting for.  So while we wait for the ‘big-bang’ experiments, I thought it would be a good time to talk about a couple of other projects which arguably are just as important as the work being done at the LHC.

The fist is ITER project, a joint international research and development project that aims to demonstrate the scientific and technical feasibility of Fusion energy.  Fusion is the energy source of the sun and the stars. On earth, fusion research is aimed at demonstrating that this energy source can be used to produce electricity in a safe and environmentally benign way, with abundant fuel resources, to meet the needs of a growing world population.  ITER is very early in its development and its likely we won’t see anything like the spectacle surounding the LHC for 20+ years.  This is partly due to the enormous amount of energy it takes to start a Fusion reaction and the extreme temperatures (think the Sun) it produces.

 

Site - http://www.iter.org


Temperature Conditions of a Supernova Recreated

May 30, 2008

Scientists are one step closer to attaining the ultimate goal: producing temperatures high enough to sustain fusion, the reaction that powers our Sun and the possible future for global energy production. Researchers at the Rutherford Appleton Laboratory in Oxfordshire, UK, have attained temperatures higher than the surface of the Sun, 10 million Kelvin (or Celsius), by using a powerful one petawatt laser called Vulcan. This experiment goes beyond the quest for fusion power; generating these high temperatures recreates the conditions of cosmological events such as supernova explosions.

This is some awesome research. An international collaboration of researchers from the UK, Europe, Japan and the US have succeeded in harnessing an equivalent of 100 times the world energy production into a tiny spot, measuring a fraction of the width of a human hair. That’s a whopping one petawatt of energy (one thousand million million watts, or enough to power ten trillion 100W light bulbs) focused on a volume measuring about 0.000009 metres (9µm) across. Vulcan blasted its target with the one petawatt laser beam for a mere 1 picosecond (one millionth of a millionth of a second). This may seem miniscule, but this microscopic period of time allowed the target material to be heated to the 10 million degrees Kelvin.

Site – http://www.universetoday.com


Doughnut (Torus)-shaped Universe bites back

May 27, 2008


Reminiscent of how humans used to think the earth was a myriad of shapes and sizes before discovering that it was actually a sphere about 12,742 km in diameter, we are now beginning to have revelations about our universe which may give it a distinct shape and size.

The idea that the universe is finite and relatively small, rather than infinitely large, first became popular in 2003, when cosmologists noticed unexpected patterns in the cosmic microwave background (CMB) – the relic radiation left behind by the Big Bang.The CMB is made up of hot and cold spots that represent ripples in the density of the infant Universe, like waves in the sea. An infinite Universe should contain waves of all sizes, but cosmologists were surprised to find that longer wavelengths were missing from measurements of the CMB made by NASA’s Wilkinson Microwave Anisotropy Probe.

One explanation for the missing waves was that the universe is finite. “You can think of the Universe as a musical instrument – it cannot sustain vibrations that have a wavelength that is bigger than the length of the instrument itself,” explains Frank Steiner, a physicist at Ulm University in Germany.


Riding D-Wave

April 26, 2008

Computers process information by breaking it down into the smallest possible chunks, called “bits.” A bit represents the distinction between two possibilities: True and False, Yes and No, or, as they are conventionally represented, 1 and 0.

The end point of Moore’s Law (which holds that computers get faster by a factor of two every year and a half or so) is a computer so powerful that it uses individual atoms to store bits of information: one atom, one bit. If we were able to work at subatomic scales and store bits on electrons or quarks, we might go further. But let’s stick with what we know we can do.

If current rates of miniaturization persist, your PC will store one bit on one atom sometime around 2050. But it’s natural to ask whether we can, in fact, achieve a bit-to-atom correspondence. Remarkably, prototype computers that store bits on individual atoms already exist in the laboratory. These computers are called quantum computers, because they store and process information at scales where the laws of quantum mechanics hold sway.

Site – http://www.technologyreview.com


LHC Doomsday Fear Sparks Lawsuit

March 30, 2008

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The builders of the world’s biggest particle collider are being sued in federal court over fears that the experiment might destroy the planet. The Large Hadron Collider, or LHC, is due for startup later this year at CERN’s headquarters on the French-Swiss border. It’s expected to tackle some of the deepest questions in science. Some folks outside the scientific mainstream have asked darker questions as well: Could the collider create mini-black holes that last long enough and get big enough to turn into a matter-sucking maelstrom? Could exotic particles known as magnetic monopoles throw atomic nuclei out of whack? Could quarks recombine into “strangelets” that would turn the whole Earth into one big lump of exotic matter?

Site – http://cosmiclog.msnbc.msn.com


Biggest black hole in the cosmos discovered

January 10, 2008

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The most massive known black hole in the universe has been discovered, weighing in with the mass of 18 billion Suns. Observing the orbit of a smaller black hole around this monster has allowed astronomers to test Einstein’s theory of general relativity with stronger gravitational fields than ever before. The black hole is about six times as massive as the previous record holder and in fact weighs as much as a small galaxy. It lurks 3.5 billion light years away, and forms the heart of a quasar called OJ287. A quasar is an extremely bright object in which matter spiralling into a giant black hole emits copious amounts of radiation. But rather than hosting just a single colossal black hole, the quasar appears to harbour two – a setup that has allowed astronomers to accurately ‘weigh’ the larger one.

Site – http://space.newscientist.com


Time Itself May Be Slowing Down

December 31, 2007

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For a decade, scientists have puzzled over a surprising phenomenon: Supernovae stars viewed at extreme distances seem to be moving away from us faster than those nearby. Most researchers have assumed that the stars have somehow accelerated – or that, more precisely, the rate of the expansion of the post-Big Bang universe itself has accelerated over time. But hold on just a minute. A group of scientists from the University of the Basque Country in Bilbao, and Spain’s University of Salamanca have offered a different idea. Maybe it’s the passage of time itself that’s slowing down, they say. The distant galaxies only look like they’re accelerating because our deep-space telescopes are essentially looking back in time to see them, to when time was going faster.

Site – http://blog.wired.com


Largest ever telescope gets $200m to proceed

December 21, 2007

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The prospect of a ground-based telescope that can directly see extrasolar planets, the earliest stellar systems and the birth of distant galaxies is nearing reality. The Gordon and Betty Moore Foundation has pledged $200m for the design and construction of the Thirty Metre Telescope (TMT), which is being developed by a consortium of astronomers in the US and Canada, including the California Institute of Technology and the University of California. As its name suggests, the TMT will consist of a mirror 30 m in diameter, giving it eight times the collecting area of any current telescope. But unlike conventional telescopes, the size of the mirror means that it will have to be split up into 492 individual hexagonal segments, all packed together into a curved honeycomb arrangement.

Site – http://physicsworld.com


Toshiba Builds Micro Nuclear Reactor

December 21, 2007

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Toshiba has developed a new class of micro size Nuclear Reactors that is designed to power individual apartment buildings or city blocks. The new reactor, which is only 20 feet by 6 feet, could change everything for small remote communities, small businesses or even a group of neighbors who are fed up with the power companies and want more control over their energy needs.

Site – http://www.nextenergynews.com