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Jan. 7, 2012
Volume: III
Number: 1
 
National Society of Black Physicists    African Physical Society    South African Institute of Physics   African Astronomical Society   
 
 
Ohm's law survives at the atomic scale
IEEE Spectrum    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A team of researchers from the U.S. and Australia have built low-resistance silicon wires that are just four atoms wide, and they show that Ohm's Law holds at the atomic level. Previous experiments had shown that at widths less than 10 nm, the resistivity of silicon nanowires increased exponentially (Ohm's Law, by contrast, is linear). The researchers were able to get around this exponential increase and follow Ohm's Law, in effect, by heavily doping the silicon nanowires with phosphorus. More



Hiding in time — A demonstration of temporal cloaking
Washington Report    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Physicists have previous reported the ability to manipulate a medium's index of refraction to affect "spatial cloaking." Extending the concept to the time domain, a team of physicists at Cornell have reported in Nature the ability to manipulate the dispersion of material in time producing a "time hole" to hide the occurrence of the event from an observer. More

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Hiding sound — Acoustic cloaking in thin plates
American Physical Society    Share    Share on FacebookTwitterShare on LinkedinE-mail article
A team of German physicists have reported in Physical Review Letters that cloaking devices made of a composite of soft and hard materials can divert elastic vibrational waves around an object as though it was not there. This acoustic cloak is based on a theoretical proposal that adapted the ideas of transformation optics, and consists of a composite structure consisting of only two materials with strongly contrasting Young's moduli. In their experiments and numerical analysis they show the cloaking effect via wavefronts impinging on an inclusion in the elastic medium, where they break around (uncloaked) or seemingly pass straight through (cloaked). More



5 experiments as hard as finding the Higgs
Nature    Share    Share on FacebookTwitterShare on LinkedinE-mail article
As the media spotlight shines on the Large Hadron Collider in Geneva and its high-profile hunt for a certain boson, other scientists are pressing forward with experiments that are just as challenging — and just as potentially transformative. Science writer Nicola Jones discusses how finding exoplanets, measuring the difference in the vibrational spectra of molecular enantiomers, finding the string theory's extra dimensions, finding gravity waves via pulsar timing and metrology experiments to determine fundamental constants are iconic quests that are also important to fundamental physics. More



Was a metamaterial lurking in the primordial universe?
Physics World    Share    Share on FacebookTwitterShare on LinkedinE-mail article
In a report published in Physical Review Letters, Igor Smolyaninov of the University of Maryland is arguing that the vacuum should behave as a metamaterial at high magnetic fields. Such magnetic fields were probably present in the early universe, and therefore he suggests that it may be possible to test the prediction by observing the cosmic microwave background radiation — a relic of the early universe that can be observed today. More

Who is the greatest living physicist?
Physics World    Share    Share on FacebookTwitterShare on LinkedinE-mail article
As scientific community celebrates Stephen Hawking's 70th birthday, Physics World wonders aloud, "Who is the world's greatest living physicists?" Philip Anderson, Steven Weinberg, Frank Wilczek, Ed Witten and Hawking are offered as suggestions. You can weigh in by participating in PW's Facebook poll, where you can also post a comment if you wish to bestow this accolade upon a physicist not listed. More

International Conference of Physics Students
The International Conference of Physics Students is an annual conference of the International Association of Physics Students. Usually, up to 400 students from all over the world attend the event. The 2012 ICPS will be held in the Netherlands in Aug. 4-10. During this week, approximately 400 students from around the world can enjoy lectures from top-class physicists, trips to scientific institutions and cultural excursions. Registration opens in February at www.icps2012.com.


Firing up tomorrow's science stars from Wales to Benin, South Africa
Science Careers    Share    Share on FacebookTwitterShare on LinkedinE-mail article
As a child growing up in the city of Cotonou in Benin, West Africa, Aude Alapini-Odunlade "used to look at the night sky all the time" from her bedroom window. A "great" physics teacher at Alapini-Odunlade's French private school in Cotonou, who ran after-school astronomy clubs, consolidated this early passion and she has gone on to earn a doctorate in astronomy. Now she has committed her career to science outreach, and in December 2011, the Institute of Physics awarded Alapini-Odunlade a Very Early Career Physics Communicator Award for her outreach work. More

2012 Quadrennial Physics Congress
The 2012 Quadrennial Physics Congress, hosted by Sigma Pi Sigma, the physics honor society. This meeting will take place Nov. 8-12 in Orlando, Fla., and will center on the theme Connecting Worlds Through Science & Service. Undergraduates, practicing physicists and physics alumni from a broad spectrum of career paths will gather together to address the interconnectivity of the modern world and what it means to science.

The Congress will feature talks by distinguished scientists such as Dr. John Mather, Physics Nobel Laureate; Freeman Dyson, acclaimed scientist and author; Dr. John Grunsfeld, astronaut and former chief scientist of NASA; Dr. Jocelyn Bell Burnell, world-class astrophysicist known for discovering pulsars, and many more.


Neutrino telescope will be '2nd biggest structure created by mankind' after Great Wall of China
Daily Mail Online    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The KM3NeT, a planned European deep-sea neutrino telescope, will search for neutrinos from distant astrophysical sources like gamma ray bursters, supernovae or colliding stars and will be a powerful tool in the search for dark matter in the universe. It will be constructed in the bed of the Mediterranean Sea as an array of thousands of optical sensors detecting light flashes resulting from neutrino collisions with water molecules. It will also house instrumentation from Earth and marine sciences for long-term and on-line monitoring of the deep sea environment and the sea bottom at depth of several kilometers. More

Star shattering events
American Physical Society    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Short-lived gamma-ray bursts are thought to originate from a neutron star merging with another neutron star or with a black hole. Immense tidal forces will be produced during this merger, and according to a new model proposed in Physical Review Letters, these forces may excite a resonant vibration in one of the neutron stars, causing its crust to shatter. The authors show that this sudden shattering could explain some pre-burst flares that have recently been observed. More



Theory — A word that gets no respect
The Huffington Post    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The word theory is used a lot. However, among the lay population there is a fundamental misunderstanding or, in some instances, a purposeful misrepresentation of what the scientific meaning of word "theory" is. Does the misunderstanding and the misrepresentation of the word theory matter? The answer is an emphatic yes. More

Final outcomes on the FY 2012 appropriations
American Institute of Physics    Share    Share on FacebookTwitterShare on LinkedinE-mail article
The fiscal year 2012 appropriations cycle concluded Dec. 23, 2011, when President Barack Obama signed into law the second of two large appropriations measures. The two measures combined all of the FY 2012 appropriations bills. AIP has compiled the percentage changes in budgets between FY 2011 appropriations levels and the FY 2012 outcome. Overall, according the American Physical Society, the final FY 2012 budget yielded better than expected results for science. More





National Society of Black Physicists jobs board postings
NSBP    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Full Professor Theoretical High Energy Physics at Columbia University
Tenure-track faculty position in experimental condensed matter physics
Physics and Astronomy REU Participant
REU Participant
Tenure Track Faculty Position in Theoretical Nuclear Physics
Postdoctoral Fellowship
Tenure-track faculty position in experimental plasma physics
Real World Science & Mathematics Summer Workshop for K-12 Science Teachers
Visiting Assistant Professor of Physics
Integrated Science Faculty in the College of Science
Summer Researcher
Summer Researcher
Mentor Opportunity Medical Physics Summer Experience Program
2012 Minority Undergraduate Summer Experience Program
AIP Congressional Fellows Program
Assistant Professor, Theoretical Physics, University of Minnesota Duluth
Assistant Professor of Physics and Astronomy
Summer Internship
Accelerator Physics Faculty
Undergraduate Researcher

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




Journal of Women and Minorities in Science and Engineering
Designed as a unique and much-needed resource for educators, managers and policymakers, the Journal of Women and Minorities in Science and Engineering publishes original, peer-reviewed papers that report innovative ideas and programs for classroom teachers, scientific studies and formulation of concepts related to the education, recruitment and retention of underrepresented groups in science and engineering.




Latest research from New Journal of Physics
IOP Journal    Share    Share on FacebookTwitterShare on LinkedinE-mail article
Phase diagrams of 3-component attractive ultracold fermions in 1 dimension

Tailoring interference and nonlinear manipulation of femtosecond X-rays

Nonclassical time correlation functions in continuous quantum measurement

Mechanism of nonclassical light emission from acoustically populated (311)A GaAs quantum wires

Scaling behaviors and novel creep motion of ac-driven flux lines in type II superconductor with random point pins
More

Latest research from Computer Physics Communications
Computer Physics Communications    Share    Share on FacebookTwitterShare on LinkedinE-mail article
GR@PPA 2.8: Initial-state jet matching for weak-boson production processes at hadron collisions

A Monte Carlo simulation of electromagnetic cascades on the extragalactic background light and in magnetic fields

Numerical solution of Q2 evolution equations for fragmentation functions

Towards a unified linear kinetic transport model with the trace ion module for EIRENE

Estimation of global sensitivity indices for models with dependent variables
More

 

 
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