Physics

NASA Awards Aerospace Propulsion, Communications Research Contracts

NASA has awarded contracts to 13 companies to provide advanced propulsion and communications system technologies as part of ongoing long-term aerospace research activities at the agency’s Glenn Research Center in Cleveland.

Short wavelength plasmons observed in nanotubes

Researchers have observed 'Luttinger-liquid' plasmons in metallic single-walled nanotubes. This holds great promise for novel plasmonic and nanophotonic devices over a broad frequency range, including telecom wavelengths.

NASA Awards Contract to Support Agency’s Human Spaceflight Programs

NASA has selected Wyle Laboratories Inc., of El Segundo, California, to provide biomedical, medical and health services in support of all human spaceflight programs at the agency’s Johnson Space Center in Houston. The work supports ongoing research aboard the International Space Station and helps enable the journey to Mars.

Lobster-Eye imager detects soft X-ray emissions

Solar winds are known for powering dangerous space weather events near Earth, which, in turn, endangers space assets. So a large interdisciplinary group of researchers, led by the U.S. National Aeronautics and Space Administration (NASA) set out to create a wide-field-of-view soft X-ray imager capable of detecting the soft X-ray emissions produced whenever the solar wind encounters neutral gas.

'Expansion entropy': A new litmus test for chaos?

Can the flap of a butterfly's wings in Brazil set off a tornado in Texas? This intriguing hypothetical scenario, commonly called "the butterfly effect," has come to embody the popular conception of a chaotic system, in which a small difference in initial conditions will cascade toward a vastly different outcome in the future.

Identifying ever-growing disturbances leading to freak waves

Physicists now better understand wave systems exhibiting unusual disturbances by identifying growing localised patterns as early indicators of such disturbances

A miniature accelerator to treat cancer

CERN, home of the 27-kilometre Large Hadron Collider (LHC), is developing a new particle accelerator just two metres long.

Arrow of time: New understanding of causality, free choice, and why we remember the past but not the future

Theoretical physicists have developed a fully-symmetric formulation of quantum theory which establishes an exact link between asymmetry and the fact that we can remember the past but not the future.

Stabilizing the transmission of time signals for relativity research

They say time waits for no man but David Gozzard might have found a way to at least tame it.

Latest results from the LHC experiments are presented in Vienna

The world particle-physics community has convened in Vienna for the 2015 European Physical Society Conference on High Energy Physics (EPS-HEP2015), where the latest results in the field are being presented and discussed. These include the first results from Run 2 of the Large Hadron Collider (LHC) at CERN, which are being presented for the very first time, less than two months after the experiments started to take data at the unprecedented energy of 13 TeV, following a two-year long shutdown.

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