Physics
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BBC News - Antimatter belt around Earth discovered by Pamela craft
The antiprotons lie sandwiched between the inner and outer Van Allen belts (in red) around the Earth A thin band of antimatter particles called antiprotons enveloping the Earth has been spotted for the first time. The find, described in Astrophysical Journal Letters , confirms theoretical work that predicted the Earth's magnetic field could trap antimatter. The antiprotons were spotted by the Pamela satellite (an acronym for Payload for Antimatter Matter Exploration and Light-nuclei Astrophysics) - launched in 2006 to study the nature of high-energy particles from the Sun and from beyond our Solar System - so-called cosmic rays. These cosmic ray particles can slam into molecules that make up the Earth's atmosphere, creating showers of particles.
Public release date: 11-Jul-2011 [ Print | E-mail | Share ] [ Close Window ] University of California - Riverside RIVERSIDE, Calif. – Physicists at the University of California, Riverside report that they have discovered a new way to create positronium, an exotic and short-lived atom that could help answer what happened to antimatter in the universe, why nature favored matter over antimatter at the universe's creation. Positronium is made up of an electron and its antimatter twin, the positron.
UC Riverside physicists discover new way to produce antimatter-containing atom
Federal researchers there are seeking to fuse some of the lightest atoms in the universe to study — and hopefully harness — the type of energy produced by hydrogen bombs and the sun. The tests were delayed six months while safety devices were installed to protect workers from radiation at the National Ignition Facility, a stadium-sized laboratory that contains 192 lasers trained on a target the size of a BB. The goal is to generate temperatures of more than 100 million degrees to fuse hydrogen atoms and release . Scientists describe this process, which they hope to achieve next year, as the creation of a miniature star on earth. But the $3.5 billion ignition facility, derided by some critics as taxpayer-financed science fiction, is running into new challenges that may further delay and perhaps scuttle its goal.
Fusion Experiment Faces New Hurdles - NYTimes.com
Hard... soft... New nanomaterial switches properties
The 51-year-old researcher from the Saarland referred to his fundamental research, which opens the door to a multitude of diverse applications, as “a breakthrough in the material sciences”. The new metallic high-performance material is described by Prof. Dr. Jörg Weißmüller and the Chinese research scientist Hai-Jun Jin in the latest issue of the renowned scientific journal Science . Their research findings could, for example, make future intelligent materials with the ability of self healing, smoothing out flaws autonomously.
National Science Foundation (NSF) Discoveries - Researchers Control Collective Spin States Electrically at Room Temperature - US National Science Foundation (NSF)
Processing large amounts of information in today's electronics requires large amounts of power, which results in heating. Heat can ruin modern electronics by potentially damaging the stuff that makes them work--the ever smaller and denser structures in a computer's "brain," the microprocessor that incorporates all of its logic functions. So, researchers have been investigating something called "spintronics," a field of research that uses the spin state of electrons to pave the way for a future generation of advanced, fast, low-power, heat-limiting devices that perform memory and logic functions beyond today's microprocessors. The challenge: controlling electron spins with low power at room temperature instead of temperatures approaching absolute zero (-273 degrees Celsius) so their resulting technologies can carry out tasks in normal-use environments.
Antimatter Breakthrough -- Electron is Stunningly Spherical, Scientists Discover - FoxNews.com
The electron was hailed by British scientists Thursday as the roundest natural object in the universe. Researchers from Imperial College London conducted a decade-long laser experiment on the subatomic particle and discovered that it differs from a perfect sphere by less than 0.000000000000000000000000001 of a centimeter -- so that "if the electron were magnified to the size of the solar system, it would still appear spherical within the width of a human hair." "I don't know of any naturally-occurring object that is rounder and has been measured to the same level of accuracy," said research leader Dr. Jony Hudson, writing in the journal Nature. The breakthrough on the shape and structure of one of the fundamental building blocks of atoms could advance research on why more matter than antimatter exists in the universe.
Perpetual motion ? Not yet !
Quantum Physics
Physics Ed
Gravity
Thermodynamics
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Dynamics
WAVE the theory of everything !
Physics Simulations and Artwork
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.Light
LHC Machine Outreach
The Large Hadron Collider (LHC) sits in a circular tunnel 27 km in circumference. The tunnel is buried around 50 to 175 m. underground. It straddles the Swiss and French borders on the outskirts of Geneva. The first collisions at an energy of 3.5 TeV per beam took place on 30th March 2010. The LHC is designed to collide two counter rotating beams of protons or heavy ions.
Please take a moment to nominate Interactive Web Physics for the "Best Project for Academia Category" in the 2009 SourceForge Community Choice Awards! Interactive Web Physics is a Java, Web-based animation and problem designer tool. Anyone can quickly design mathematics or physics animations and simulations that run in a web browser. Unlike other solutions, no knowledge of programming is required. IWP Animator: EM Fields
Interactive Web Physics - iwphys.org
Homepage - Large Hadron Collider
Tunnelling to the beginning of time The LHC (Large Hadron Collider) is an international project, in which the UK has a leading role. This site includes the latest news from the project, accessible explanations of how the LHC works, how it is funded, who works there and what benefits it brings us.The Nature of Reality
physics
Space/Time
Amusing physics.
Have you tried TED ? Great knowlege videos . Probably the best tap for the bright minded ;-) All subjects http://www.ted.com/ by Jun 7
Have been watching Institute for Advanced Study videos...difficult to follow at times but worth the effort. Great site. The pearltree looks great. Will watch Hurricane Balls next. Thnx. by Jun 6
OK I replaced it with " Hurricane Balls " I think it's the same video . I placed it next to " Amusing Physics" by Jun 6