Physics

NASA Debuts Online Toolkit to Promote Commercial Use of Satellite Data

While NASA’s policy of free and open remote-sensing data has long benefited the scientific community, other government agencies and nonprofit organizations, it has significant untapped potential for commercialization.

NASA Television, Website to Air Critical Conversations on Science in Space

NASA will join counterparts from across government, industry, academia and international organizations for an indepth conversation about science on the International Space Station Monday, July 23, through Thursday, July 26, in San Francisco.

The relationship between charge density waves and superconductivity? It's complicated

For a long time, physicists have tried to understand the relationship between a periodic pattern of conduction electrons called a charge density wave (CDW), and another quantum order, superconductivity, or zero electrical resistance, in the same material. Do they compete? Co-exist? Co-operate? Do they go their separate ways?

NASA, French Aerospace Lab to Collaborate on Sonic Boom Prediction Research

NASA and France’s Office National d'Etudes et de Recherches Aerospatiales (ONERA), the French national aerospace research center, signed a research agreement Wednesday that could make supersonic passenger flights over land practical, dramatically reducing travel time in the United States or anywhere in the world.

A possibly better way to measure our own galaxy speed moving through space

A pair of physicists at Aix-Marseille University has offered a possible way to measure the speed of our own galaxy more accurately as it moves through space. In their paper published in the journal Physical Review Letters, Julien Bel and Christian Marinoni describe their theory and how it might be tested.

Materials processing tricks enable engineers to create new laser material

By doping alumina crystals with neodymium ions, engineers have developed a new laser material that is capable of emitting ultra-short, high-power pulses -- a combination that could potentially yield smaller, more powerful lasers with superior thermal shock resistance, broad tunability and high-duty cycles.

Researchers measure simulated spent nuclear fuel temperatures in a dry cask for new data set

Sandia National Laboratories researchers have built a scaled test assembly that mimics a dry cask storage container for spent nuclear fuel to study how fuel temperatures change during storage and how the fuel's peak temperatures affect the integrity of the metal cladding surrounding the spent fuel.

A new approach for narrowing down huge calculations by focusing on a single, predictive parameter

A team that includes nuclear physicists, a machine-learning researcher and an NC State mathematician has created a new approach for narrowing down huge calculations – such as those involved in quantum physics – by focusing on a single, predictive parameter. This approach, dubbed the eigenvector continuation, could prove useful in solving other scientific and engineering problems where the calculations are simply too large for computer memory to handle.

UK delivers super-cool kit to USA for Next-Generation Dark Matter Experiment

A huge U.K.-built titanium chamber designed to keep its contents at a cool -100C and weighing as much as an SUV has been shipped to the United States, where it will soon become part of a next-generation dark matter detector to hunt for the long-theorised elusive dark matter particle called a WIMP (Weakly Interacting Massive Particle).

No more zigzags: Scientists uncover mechanism that stabilizes fusion plasmas

Article describes simulation of mechanism that eliminates sawtooth instabilities in fusion plasmas.

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