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New tests confirm the results of OPERA on the neutrino velocity Interactions Share ![]() ![]() ![]()
New tests conducted at the Gran Sasso National Laboratory of INFN by the OPERA Collaboration, with a specially set up neutrino beam from CERN, confirm so far the previous results on the measurement of the neutrino velocity. The new tests seem to exclude part of potential systematic effects that could have affected the original measurement. On Nov. 17 the OPERA Collaboration submitted the paper on the neutrino velocity measurement to the Journal of High Energy Physics, and in parallel to ArXiv. More
LHb result hints at matter-antimatter bias Science Now Share ![]() ![]() ![]()
Researchers on the LHCb experiment are reporting that the relative decay rates between D0 particles and antiparticles differ by 0.8 percent. If confirmed, this level of charge-parity violation would at least eight times as high as the Standard Model allows, and could help explain why there is still "stuff" in the universe. More NSF FY12 budget signed into law American Institute of Physics Share ![]() ![]() ![]()
President Barack Obama has signed into law the FY12 budget for the National Science Foundation that provides for a 2.5 percent increase over the previous year's budget. The agency's overall budget will be slightly over $7 billion USD, with $5.7 billion for research and related activities, and $167 million for major research equipment and facilities construction. These are 2.8 and 42.7 percent increases over last year's budgets, respectively. The agency's Education and Human Resources Directorate is slated for a 3.7 percent decrease. More
Nominations wanted: Top physics and astronomy stories of 2011 Waves and Packets Share ![]() ![]() ![]()
Reader Poll: As this calendar year approaches its end, the editors of Waves and Packets are compiling a list of top breakthroughs in physics and astronomy for 2011. What breakthroughs in physics or astronomy get your vote as the most important of the year? Understanding thermal effects in spintronics American Physical Society Share ![]() ![]() ![]()
The 2008 discovery of the spin-Seebeck effect has pushed the discipline of "spin caloritronics" into the spotlight, and has opened up a new route of exploiting the spin dimension in electronic transport. As the effect has been observed in a variety of materials, interesting complications have emerged in samples of 2-D films on substrates. Writing in Physical Review Letters, a team of physicists have reported observation of the spin-Seebeck effect in Permalloy films with and without a substrate. Apparently the substrate can introduce its own thermodynamics that can overpower that of the film to produce a composite effect. More
One cool demo: Magnetic field flips miniature origami American Physical Society Share ![]() ![]() ![]()
Proof found for unifying quantum principle Nature Share ![]() ![]() ![]()
Twenty-five years ago John Cardy proposed a conjecture, called the a-theorem, that says that the number of ways in which quantum fields can be energetically excited "a" is always greater at high energies than at low energies. Put another way by Matt Strassler, a quantum field theory has a calculable quantity, called "a" for historical reasons, that helps characterize it. The conjecture is that if you take any quantum field theory, and study the phenomena that it exhibits at longer and longer distance you will find that "a" always decreases. A proof the theorem was recently proposed by Zohar Komargodski and Adam Schwimmer of the Weizmann Institute of Science that is gradually gaining acceptance. More
Making light out of virtual photons Physics World Share ![]() ![]() ![]()
An international team of physicists have used the dynamical Casimir effect to force a mirror to make its own light rather than simply reflecting the light around it. The experimental result reported in Nature uses quantum fluctuations in which virtual subatomic elementary particle pairs continuously pop in and out of existence in a vacuum. These quantum fluctuations were harnessed using a SQUID device to create the electrical equivalent of an ultrafast mirror to convert virtual photons into real electromagnetic radiation via the dynamical Casimir effect. More NASA probe data show evidence of liquid water on icy Europa Astronomy Share ![]() ![]() ![]()
Data from a NASA planetary mission have provided scientists evidence of what appears to be a body of liquid water, equal in volume to the North American Great Lakes, beneath the icy surface of Jupiter's moon, Europa. The data suggest there is significant exchange between Europa's icy shell and the ocean beneath. This information could bolster arguments that Europa's global subsurface ocean represents a potential habitat for life elsewhere in our solar system. The findings are published in Nature. More
President Obama honors physicist Solomon Bililign with Presidential Award for science mentoring Tadias Share ![]() ![]() ![]()
Solomon Bililign, a professor at North Carolina A&T Statue University, and director of the NOAA-ISET Center there, has been selected to receive the Presidential Award for Excellence in Science, Mathematics, and Engineering Mentoring. These awards are bestowed by the White House to individuals and organizations to recognize the crucial role that mentoring plays in the academic and personal development of students studying science and engineering — particularly those who belong to groups that are underrepresented in these fields. Professor Bililign is co-chair of the NSBP section on Earth and Planetary Systems Sciences. More Peter Delfyett elected Fellow of APS American Physical Society Share ![]() ![]() ![]()
Dr. Peter Delfyett, the current president of the National Society of Black Physicists, has been elected Fellow of the American Physical Society, "For pioneering contributions to the understanding of the physics and implementation of ultrafast diode lasers." Delfyett is the Trustee Chair and professor in the College of Optics and Photonics/CREOL at the University of Central Florida. He also holds appointments in the electrical engineering and physics departments there. His research group is primarily working on high-powered, ultra-short pulsed, multiwavelength mode-locked semiconductor lasers. Earlier this year his group demonstrated line-by-line pulse shaping of optical comb lines with updates to the pulse shape on the time scale of the pulse period. More
Fun Physics Simulations Physics Central Share ![]() ![]() ![]()
University of Colorado at Boulder Physics Department has provided a slew of interactive simulations that can help make some of the most difficult concepts a little more understandable. Originally known as the Physics Education Technology project, the project now encompasses areas as diverse as chemistry, math and biology. The physics collection covers a number of phenomena including quantum tunneling, orbits, the photoelectric effect and quantum wave interference. The site has over 100 simulations to choose from with difficulty ranging from elementary school up to undergraduate level. More
Make it a physics-filled Thanksgiving About Physics Share ![]() ![]() ![]()
Thanksgiving provides a great opportunity for every physicist to shine. Andrew Zimmerman-Jones presents a scientifically proven method for cooking the perfect turkey. And a fun, potentially refreshing Jello experiment is presented on the NSBP blog, Vector. More National Society of Black Physicists jobs board postings NSBP Share ![]() ![]() ![]()
Bucknell University - Assistant/Associate/Full Professor of Physics & Astronomy Tenure-Track Assistant or Associate Professor at Stockton College Baccalaureate Fellows Program, 2-year fellowship Tenure-Track Professor and Research Director, Physics Department Lehigh University REU Program in Physics Assistant Professor Experimental Astroparticle Physics Renewable Energy REU at the Colorado School of Mines Faculty Position in Particle Theory Faculty Position in Experimental Fundamental Physics Open (or Multi) Rank Neutrino Physics Faculty Position Lecturer Faculty Position Research Experiences for Undergraduates Assistant Professor of Physics Dean, Division of Science Tenure Track Faculty position - Experimental high energy Density Laser-Plasma Physics Assistant Professor of Physics Assistant Professor, Physics Teacher Education Open Rank Faculty Position in Quantum Information Theory Asstistant, Associate, or Full Professor Position in Condensed-Matter Experiment Assistant, Associate, or Full Professor Position in Particle, Nuclear, or Gravitational Theory Research Scientist in Computational Physics Tenure-Track Assistant Professor Advice for graduate students Inside Higher Education Steven Stearns offers some insight and advice for graduate students. Know thyself and know thy advisor. More More advice for graduate students Inside Higher Education So much comes down to good writing skills. Steven Stearns offers some tips on how to write well and write strategically. More Overcoming the imposter syndrome About.com At one time or another nearly every graduate student and new faculty member wonders about his or her competence. This is a common fear often referred to as the impostor syndrome. The impostor syndrome runs rampant in academia — and women are especially prone to it. How do you get over the impostor syndrome? Easier said than done. More Ready. Set. Go. Transitioning from college to graduate school GradSchools.com Compared to your undergraduate education, graduate school is faster paced. Professors expect a lot of work to be done, and there's a lot less hand-holding. More Latest research from European Journal of Physics IOP Journal Share ![]() ![]() ![]()
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Dynamical symmetries in classical mechanics
Determination of rest mass energy of the electron by a Compton scattering experiment Two-laser interference visible to the naked eye Transfer function of multi-stage active filters: A solution based on Pascal's triangle and a general expression Touching ghosts: Observing free fall from an infalling frame of reference into a Schwarzschild black hole Tree hydraulics: How sap rises More Latest research from New Astronomy Reviews: An International Review Journal New Astronomy Reviews Share ![]() ![]() ![]()
Shadows as a tool to evaluate black hole parameters and a dimension of spacetime
A new astronomy with radioactivity: Radiogenic carbon chemistry Estimating black hole masses in quasars using broad optical and UV emission lines Ultraluminous X-ray sources in theChandraandXMM-NewtonEra More |
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