Physics

NASA Accepting Proposals for Reduced Gravity Education Flights

NASA's Johnson Space Center in Houston is accepting applications from teams of kindergarten, elementary and secondary school teachers to conduct scientific experiments aboard the agency's reduced gravity aircraft next year.

New "Earth As Art" Book Illustrates Beauty Of Satellite Views

A stunning array of images of our home planet, taken by Earth-observing science satellites, are featured in a new NASA publication.

ELISE investigating new type of heating for ITER

(Phys.org)—Tests for the heating that is to bring the plasma of the ITER international fusion test reactor to a temperature of many million degrees can go ahead from today: After three years of construction, Max Planck Institute for Plasma Physics (IPP) at Garching bei München has officially commissioned the ELISE test rig – the world's largest device of its kind and part of a four-million euro research contract of the "Fusion for Energy" European ITER Agency. Corepiece of the device is an innovative high-frequency ion source developed at IPP.

Researchers observe drop of resistance in the flow of a superfluid Fermi gas

(Phys.org)—Physicists working at the Institute for Quantum Electronics in Switzerland have succeeded in building an apparatus that has allowed for the observation of the drop of resistance in the flow of a superfluid Fermi gas. They describe their work in a paper they've had published in the journal Nature.

The beginning of everything: A new paradigm shift for the infant universe

(Phys.org)—A new paradigm for understanding the earliest eras in the history of the universe has been developed by scientists at Penn State University. Using techniques from an area of modern physics called loop quantum cosmology, developed at Penn State, the scientists now have extended analyses that include quantum physics farther back in time than ever before—all the way to the beginning.

Predicting material fatigue: Polymer composites: luminescent zinc oxide tetrapod filler makes inner damage visible

Detection of material failure is a difficult task for engineers, because cracks inside a material block can hardly be identified from the outside. However, early detection can prevent fatal disasters such as the world's deadliest high-speed train accident in 1998 near Eschede, Germany, caused by failure of a metal wheel. It is even more difficult to detect material failure in composite materials. A research team has now developed a new concept to design so-called self-reporting composite materials.

NASA Spacecraft Finds New Evidence for Water Ice on Mercury

A NASA spacecraft studying Mercury has provided compelling support for the long-held hypothesis the planet harbors abundant water ice and other frozen volatile materials within its permanently shadowed polar craters.

Ice Sheet Loss at Both Poles Increasing, Major Study Finds

An international team of experts supported by NASA and the European Space Agency (ESA) has combined data from multiple satellites and aircraft to produce the most comprehensive and accurate assessment to date of ice sheet losses in Greenland and Antarctica and their contributions to sea level rise.

Wildfires, Mars and Earth's Radiation Belts Among NASA News Highlights at American Geophysical Union Meeting

NASA researchers will present new findings on a wide range of Earth and space science topics next week at the annual meeting of the American Geophysical Union (AGU). The meeting takes place Dec. 3-7 at the Moscone Convention Center, 747 Howard St., in San Francisco. Media registration for the event is open.

Outside a vacuum: Model predicts movement of charged particles in complex media

Picture two charged particles in a vacuum. Thanks to laws of elementary electrostatics, we can easily calculate the force these particles exert upon one another, and therefore predict their movements.

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