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Faster then light travel
Cosmic Ray Decectors
Here is a 3D view of a hydrogren atom in the 4f state. The left image was made in C++ using a technique described by Krzysztof Marczak to make it volumetric like a cloud of smoke. The right image was made in Mathematica by adding 2D cross-sectional layers.
Want to stay on top of all the space news? Follow @universetoday on Twitter PAMELA team and detector in Rome before launch. Photo courtesy of the PAMELA Experiment When it comes to planets with rings , we know the answer: Jupiter, Saturn, Uranus, and Neptune.
Geneva, 17 November 2010.
What is the AD? The Antiproton Decelerator is a very special machine compared to what already exists at CERN and other laboratories around the world. So far, an " antiparticle factory " consisted of a chain of several accelerators, each one performing one of the steps needed to produce antiparticles. The CERN antiproton complex is a very good example of this. At the end of the 70's CERN built an antiproton source called the Antiproton Accumulator ( AA ). Its task was to produce and accumulate high energy antiprotons to feed into the SPS in order to transform it into a "proton-antiproton collider".
Antimatter of fact A unique machine – the Antiproton Decelerator (AD) – has opened up a new phase in CERN's tradition of milestone scientific discoveries using beams of antiparticles – the smallest constituents of antimatter. Physics experiments at the AD will embark on the first precision study of the behaviour of atoms of antimatter. In 1927 a British physicist called Paul Dirac wrote down a new equation for the electron which led him to predict that the electron had a counterpart particle, the 'anti-electron'. This particle was later discovered (and renamed the positron).
A team of particle physicists at CERN's Antihydrogen Laser Physics Apparatus (ALPHA) have trapped 309 atoms of antimatter for more than a quarter of an hour. When CERN first created and trapped antimatter, back in November 2010 , researchers held onto the fleeting antihydrogen atoms for just 170 milliseconds, or a tenth of a second. Antihydrogen atoms have a super short life span. As soon as they come into contact with normal hydrogen atoms the antimatter is annihilated. The team at ALPHA figured out how to isolate the atoms and hold a cloud of them in a magnetic field , but it released the antimatter after a confinement time of just 172 ms.
In a bid towards better understanding the inner workings of the proton, researchers in Germany have, for the first time, directly measured magnetic spin-transitions of a single trapped proton. Their work is an important step forward in understanding the magnetic properties of a proton. The technique could also be used to measure the spin of an antiproton, which could help us understand why the universe has more matter than antimatter.
Haven’t your own antiproton decelerator? This is what one looks like. Researchers involved in the ALPHA experiment at Switzerland’s CERN complex announced…that they have succeeded in using the facility’s antiproton decelerator to trap antimatter atoms for 1,000 seconds – or just over 16 minutes.
Standard Model of Particle Physics
Spherical electrons, gravitons, banes, super-symmetry
Something from nothing
@ ledzep23 : "I was referring to the effects of particles combining after the Big Bang!(If any) That's one of the things they're trying to do, right?" Particles combine(d) in different ways at different times after the Big Bang. The LHC is working at an energy scale that is close to the Big Bang but not close enough for quantum gravity effects to be significant. "They're trying to find the Higgs Boson and something that has to do with Anti Matter, etc."
A new sub-atomic particle has been discovered by physicists using high-energy collisions at the U.S. national laboratory Fermilab. This discovery adds one more piece to understanding the puzzle of how matter, the stuff of the universe, is formed. A look inside the tracking chamber of the Collider Detector at Fermilab The new particle is called neutral Xi-sub-b, found by scientists at The Collider Detector at Fermilab (CDF), an international experiment located located in Batavia, Illinois which involves about 500 physicists from 58 institutions in 15 countries.
Physics - team curated
Albert Einstein and the Theory of Relativity Newton's theory of gravitation was soon accepted without question, and it remained unquestioned until the beginning of this century. Then Albert Einstein shook the foundations of physics with the introduction of his Special Theory of Relativity in 1905, and his General Theory of Relativity in 1915 (Here is an example of a thought experiment in special relativity ). The first showed that Newton's Three Laws of Motion were only approximately correct, breaking down when velocities approached that of light. The second showed that Newton's Law of Gravitation was also only approximately correct, breaking down in the presence of very strong gravitational fields. Newton vs.
First published Wed Jun 3, 1998; substantive revision Fri Sep 10, 2010 Hugh Everett III's relative-state formulation of quantum mechanics is an attempt to solve the quantum measurement problem by dropping the collapse dynamics from the standard von Neumann-Dirac formulation of quantum mechanics. Everett then wanted to recapture the predictions of the standard collapse theory by explaining why observers nevertheless get determinate measurement records (or at least appear to do so) and by accounting for quantum probabilities.
I accidentally picked this pearl little realizing how addictive it is. Once you open this pearl you will find hours simply dissapear. I have thus labed this pearl as dangerous... by Oct 23
Coordinates : The Large Hadron Collider ( LHC ) is the world's largest and highest-energy particle accelerator , and considered "one of the great engineering milestones of mankind". [ 1 ] It was built by the European Organization for Nuclear Research (CERN) from 1998 to 2008, with the aim of allowing physicists to test the predictions of different theories of particle physics and high-energy physics , and particularly prove or disprove the existence of the theorized Higgs boson [ 2 ] and of the large family of new particles predicted by supersymmetric theories . [ 3 ] The LHC is expected to address some of the still unsolved questions of physics , advancing human understanding of physical laws . It contains six detectors each designed for specific kinds of exploration.
The Scale of Things
Electro Magnetic Spectrum
Nov. 6, 2008 — The search for a mysterious substance which makes up most of the Universe could soon be at an end, according to new research. Dark matter is believed to account for 85 per cent of the Universe's mass but has remained invisible to telescopes since scientists inferred its existence from its gravitational effects more than 75 years ago. Now the international Virgo Consortium, a team of scientists including cosmologists at Durham University, has used a massive computer simulation showing the evolution of a galaxy like the Milky Way to "see" gamma-rays given off by dark matter.
Probability & Quantum State