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Home   About   Membership   Conference   Public Policy   Job Board    May 25, 2011
  National Society of Black Physicists    African Physical Society   South African Institute of Physics    
Radio telescopes capture best-ever snapshot of black hole jets
NASA    Share    Share on FacebookTwitterShare on LinkedinE-mail article
An international team, including NASA-funded researchers, has used radio telescopes located throughout the Southern Hemisphere to produce the most detailed image of particle jets erupting from a supermassive black hole in a nearby galaxy. The new image of Centaurus A, or Cen A, a nearby galaxy with a supermassive black hole weighing 55 million times the sun's mass, is one of the first celestial radio sources identified with a galaxy. Cen A is one of the biggest and brightest objects in the sky. More

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Save the date: Sept. 21-24
Joint Conference of the National Society of Black Physicists and the National Society of Hispanic Physicists

We are pleased to announce the 2011 Joint Annual Conference of NSBP and NSHP will be held Sept. 21-24 at the Renaissance Hotel in Austin, Texas. With more than 600 participants, this meeting is the largest gathering of African-American and Hispanic physicists in the world. This is an exceptionally good meeting for students to attend. Students can present posters or oral presentations, attend professional development and scientific sessions, and network with fellow students and faculty. The conference includes one of the largest and most successful physics career fairs in the U.S. The sponsors include the National Science Foundation, the University of Texas at Austin and the Southeastern University Research Association.

Rogue waves captured
Science News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Sailors long have swapped stories about walls of water leaping up in the open ocean — even in calm water — without warning or obvious cause. But for centuries, rogue waves were little more than talk; no one ever had measured one with scientific instruments. Observed by laser mounted on an oil rig in 1995, and described by a system of nonlinear Schrödinger equations that give pulselike waves solutions called Peregrine solitons in 1993, scientist now have a model system to study noise and other nonlinear effects that lead to strong pulse waves. More

Five-hundred-meter Aperture Spherical radio Telescope (FAST) project    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Five-hundred-meter Aperture Spherical radio Telescope — FAST — is a Chinese mega-science project to build the largest single dish radio telescope in the world. FAST also represents Chinese contribution in the international efforts to build the square kilometer array. FAST will enable astronomers to jump-start many science goals, such as surveying the neutral hydrogen in the Milky Way and other galaxies, detecting faint pulsars, looking for the first shining stars, hearing the possible signals from other civilizations and more. More

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The accretion of African astronomy
The Nigeria Guardian    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Slowly but surely, astronomy has begun to accrete in Black Africa. Though not yet a "protoplanet" — or even a "planetesimal" — it clearly is taking on mass and evolving into a recognized, respected body of knowledge. Two recent indicators are prescient and promising. One is the recent formation of the African Astronomical Society, at a Cape Town, South Africa, meeting of the International Astronomical Union, with a Nigerian as president. The other is the interest sub-Saharan nations have begun to show in radio astronomy. More

Government of Ghana invests in African Institute of Mathematical Sciences    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The Government of Ghana has committed $1.5 million to the African Institute for Mathematical Sciences–Next Einstein Initiative. The funding will help build AIMS-Ghana, the third independent institute of AIMS-NEI, which aims to create a coordinated network of 15 centers by 2020. The opening of AIMS-Senegal was announced earlier this year. More

The African Astronomical Society is on Twitter!

Proton-nucleus collisions at the LHC: Scientific opportunities, requirements    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Proton-nucleus collisions long have been recognized as a crucial component of the physics program with nuclear beams at high energies, in particular for their reference role to interpret and understand nucleus-nucleus data as well as for their potential to elucidate the partonic structure of matter at low parton fractional momenta. Runs of proton-nucleus collisions also offer opportunities for more science, such as insight into the mass number of high energy cosmic rays. More

Antiferromagnetism coexists with superconductivity    Share    Share on FacebookTwitterShare on LinkedinE-mail article
High-temperature superconductivity can be seen as a fight for survival at the atomic scale. In an effort to reach that point where electrons pair up and resistance is reduced to zero, superconductivity must compete with numerous, seemingly rival phases of matter. One of those phases, antiferromagnetism, shows evidence of coexisting with superconductivity under examination by two high-tech procedures for measuring the activity of neutrons and electrons, an international team of physicists reports in the current edition of Nature Physics. More

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Tantalizing cosmic-ray electrons
American Physical Society    Share    Share on FacebookTwitterShare on LinkedinE-mail article
In 2009, astrophysicists reported high-energy cosmic rays contained an unexpectedly large ratio of positrons to electrons. The excess flux of positrons suggested perhaps the propagation of cosmic rays through space was different than had been assumed, or models needed to account for additional astrophysical sources. A new report from the PAMELA Collaboration appearing in Physical Review Letters contributes data on the absolute spectrum of electrons, where the data seems to fit an explanation that there are additional sources of positrons, such as supernova remnants or dark matter particles — the latter being a particularly exciting possibility. More

Expanded VLA flexing new scientific muscle
e-Science News    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A new, uniquely powerful tool for cutting-edge science, the Very Large Array, has become the Extended Very Large Array. The EVLA already has revealed previously unseen detail of molecular gas near a very young star, helped show how large ejections of matter from massive young stars can interact with their surroundings and play a key role in the evolution of galaxies, and several new results in galaxy formation. "These early results are only the beginning of a very rich scientific harvest that the EVLA will produce," says Fred Lo, the director of the National Radio Astronomy Observatory. More

Physicists show some particles are able to flow up small waterfalls    Share    Share on FacebookTwitterShare on LinkedinE-mail article
In a paper published on arXiv, Cuban physicist Ernesto Althsuler and his team at the University of Havana describe how they set out to reproduce a phenomenon they had observed while brewing the Argentinean drink mate, a type of tea. Althsuler noticed after causing hot water to drop from one vessel down a very slight waterfall into another containing tea leaves, some of the leaf particulates managed to make their way back up the waterfall and into the hot water vessel. In their subsequent research, they discovered a small counter-flow can come into existence in small drop waterfalls along the sides, enough to carry small particles. More

Physicist achieves measurement milestone down to yoctonewton level
Nanowerk    Share    Share on FacebookTwitterShare on LinkedinE-mail article
University of Sydney physicist Michael Biercuk has made the most sensitive measurement of force to date, down to the yoctonewton level, one septillionth (10-24) of a newton. In collaboration with the Ion Storage Group at the U.S. National Institute of Standards and Technology, Biercuk demonstrated it is possible to use trapped atomic ions as extremely sensitive detectors of applied forces and electromagnetic fields. The discovery provides an opportunity to address new challenges in materials science, nanotechnology and industrial sensing. More

Latest research from Physica Scripta
Physica Scripta    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Calorimetric studies of thermal crystallization in glassy Se 80— x Te 20 Sn x (0≤; x ≤10) alloys

Delay-improved signal propagation in globally coupled bistable systems

The existence and stability of incoherently coupled bright-dark soliton families in photorefractive polymers

Self-adjoint extensions and spectral analysis in the generalized Kratzer problem

Chaos in toroidal ion-temperature-gradient-driven modes in dust-contaminated magnetoplasma


Latest research from Biomicrofluidics
Biomicrofluidics    Share    Share on FacebookTwitterShare on LinkedinE-mail article
System-level simulation of liquid filling in microfluidic chips

Cell chip array for microfluidic proteomics enabling rapid in situ assessment of intracellular protein phosphorylation

Use of a virtual wall valve in polydimethylsiloxane microfluidic devices for bioanalytical applications

Structural and dynamic properties of linker histone H1 binding to DNA

Observation of nonspherical particle behaviors for continuous shape-based separation using hydrodynamic filtration


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