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APS Physics
12/08/2016 at 21:40. Facebook
John Glenn was the first American astronaut to orbit Earth. He made history again when, at the age of 77, he became the oldest person in space. He also served as a U.S. Senator for more than two decades.

John Glenn, American Hero of the Space Age, Dies at 95

nytimes.com
APS Physics
12/08/2016 at 03:01. Facebook
Nuclear fusion could someday be a limitless energy source. The National Ignition Facility in California normally uses hydrogen ice as fuel for its fusion experiments. But generating self-sustaining fusion might be made easier with liquid fuel. Early experiments with liquid hydrogen are now looking promising.

Synopsis: Starting Fluid for Laser Fusion

physics.aps.org
APS Physics
yesterday at 22:15. Facebook
APS and IBM Research co-sponsor paid summer internships for undergraduate women and underrepresented minority students. The internships are typically 10-weeks long and are located at one of three IBM locations (Almaden in California, Watson Research in New York, or Austin Research Lab in Texas). Applications are due February 15.

APS/IBM Research Internship for Undergraduate Women and Underrepresented Minorities

go.aps.org
APS Physics
yesterday at 18:05. Facebook
As the president-elect, Donald Trump is continuing to make important appointments to his transition team. Although Trump has yet to choose a science advisor, many in the scientific community are speculating who will fill this role, and what research will look like under his presidency. Read what the experts have to say in the December issue of APS News:

Science in the Trump Administration

aps.org
APS Physics
12/06/2016 at 19:00. Facebook
Thanks to everyone who entered the Future of Physics Days t-shirt caption contest! And, the winning caption is:

"How does Einstein say hello? He Gravity Waves!"

Sent in by John Phillip Ferrier, of the University of Central Arkansas SPS Chapter.

Future of Physics Days T-Shirt Caption Contest

aps.org
APS Physics
12/05/2016 at 20:00. Facebook
The favorite of this science film festival was a documentary about a neuroscientist who studies the processing of traumatic experiences and who interviews her father, a Holocaust survivor.

Arts & Culture: Science and Filmmaking in an Equal Relationship

physics.aps.org
APS Physics
12/05/2016 at 18:10. Facebook
Micromachines are becoming more functional, and they are so small that the usual rules of thermodynamics don't always apply. Researchers would like to understand and control quantities such as entropy at the nanoscale. Now a team has implemented a so-called Maxwell's demon to control the entropy in a carbon nucleus using magnetic fields and an extra hydrogen nucleus.

Viewpoint: Maxwell’s Demon Meets Nonequilibrium Quantum Thermodynamics

physics.aps.org
APS Physics
12/02/2016 at 16:57. Facebook
High-power microwave radiation is needed for radar and telecommunications, and now a research team has developed a potentially more efficient source. Cutting C-shaped slots in copper plates for the top and bottom surfaces of a waveguide alters its electromagnetic properties, including the speed of wave propagation. An electron beam moving through the waveguide faster than this modified speed...
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Focus: Better Microwaves from a Metamaterial

physics.aps.org
APS Physics
12/01/2016 at 18:28. Facebook
We all know that aftershocks are more likely a day after a big earthquake than weeks later, but this clustering in time may be only an illusion. Instruments can't detect ground motion below a threshold. Experiments and theory suggest that this detection limit hides the true, random timing of earthquakes of all sizes.

Synopsis: Explaining Aftershock Clustering

physics.aps.org
APS Physics
12/01/2016 at 01:00. Facebook
A blue-footed booby dive-bombs for fish by hitting the water at up to 24 meters/second. How does it avoid breaking its slender neck? To understand its unique anatomy, researchers experimented with a bird carcass and with a crude bird model splashing into water. (From the journal Proceedings of the National Academy of Sciences of the United States of America—part of our monthly round-up of...
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Research News: Editors’ Choice

physics.aps.org
A few more days to submit a caption for the Future of Physics Days t-shirt caption contest! Be sure to click on the image and comment on the actual picture (not this post!).
Join the nation's largest meeting dedicated to the education of future physics teachers—featuring workshops on best practices, panel discussions by national leaders, and excellent networking opportunities for educators. The conference will be held February 17 and 18 in Atlanta, Georgia, immediately preceding the AAPT Winter Meeting. Learn more and register now!

2017 PhysTEC Conference

phystec.org
Sometimes theorists derive the correct result with the wrong reasoning. They thought graphene's fixed light absorption over a wide range of wavelengths came from its unusual band structure (electron energy-momentum relationship). But another similar material with a different band structure has the same property. A new calculation shows that the property comes mainly from the 2-dimensional,...
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Synopsis: Graphene’s Elegant Optics Explained

physics.aps.org
Infrared (IR) telescopes can see through dust, such as that of an early-stage planetary system, but IR detectors aren't as good as those for visible light. A scheme to convert the IR light from an array of telescopes to visible light has now reached a milestone. Researchers showed that the converted light maintains the delicate coherence that is needed when combining signals from separate...
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Synopsis: Sharper Vision for Infrared Telescopes

physics.aps.org
The vacuum isn't empty but instead roils with virtual particles that rapidly flit into and out of existence. The 1947 observation of the Lamb shift—an effect on the energy levels in hydrogen—was an important proof of the nature of the vacuum. Now researchers have carried out a similar experiment in an analog system of ultracold atoms. Vibrations of the atoms play the role of the virtual...
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Viewpoint: Lamb Shift Spotted in Cold Gases

physics.aps.org
The Alpha Magnetic Spectrometer - AMS-02 on board the International Space Station has new data on cosmic rays—particles and atomic nuclei reaching us from far beyond the Solar System. The data on carbon and boron nuclei support the view that the previously detected "excess" positrons (anti-electrons) may come from exotic sources like dark matter.

Focus: More Hints of Exotic Cosmic-Ray Origin

physics.aps.org
High school teachers deserve much of the credit for the enthusiastic crowds of undergrad physics majors at #PhysCon2016, according to student attendees. “It was this amazing moment to me when we actually pulled the trigger, and the ball went and landed within 1 or 2 inches of where we had predicted. . . . This idea that all these numbers and equations on the board were real. It was what...
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Meetings: Why College Students Choose Physics

physics.aps.org
Large crowds, like those at black Friday sales, can become dangerous when people focus around a point of common interest. In this paper, scientists study these effects using a model of "active matter." [ Journals.aps.org Link ]
A photon (particle of light) can have two colors at once, but physicists have only recently managed to create such particles and had yet to directly prove that they succeeded. Now a research team has proven that they created "bichromatic" photons and has provided tools for manipulating them, explains physicist Philipp Treutlein.

Viewpoint: Photon Qubit is Made of Two Colors

physics.aps.org
Physicists have found a way to deterministically absorb exactly one photon out of a beam of light. They use Rydberg atoms which have the property that, in some situations, only a single one of them can be excited at a time.

Single-Photon Absorber Based on Strongly Interacting Rydberg Atoms

journals.aps.org