Physics

Nanoparticles: When less is more in predicting performance

A computational approach that makes processor-intensive first-principle calculations more manageable is now available to predict the structure of nano-alloy catalysts.<img src="http://feeds.feedburner.com/~r/sciencedaily/matter_energy/physics/~4/Qsm... height="1" width="1"/>

Millimeter-wave oscillation by ferromagnetic nanocontact device

Researchers have demonstrated theoretically that oscillation of 5–140 GHz is possible by supplying direct current to a ferromagnetic nanocontact device.

Uwingu wants you to submit names for their planetary baby book

Astronomers are discovering a lot of planets these days. The official count is 800+, with thousands of more candidates (unconfirmed but suspiciously planet-like).

Right now we give them alphabet soup names. Alpha Centauri Bb. HR 8799b (through HR8799 e). And of course, everyone's favorite, 2MASS J04414489+2301513b.

These catalog names are useful, but less than public friendly. In science fiction we get Vulcan, Psychon, Arrakis, and other cool names. So why not in real life?

Uwingu wants you to submit names for their planetary baby book

Astronomers are discovering a lot of planets these days. The official count is 800+, with thousands of more candidates (unconfirmed but suspiciously planet-like).

Right now we give them alphabet soup names. Alpha Centauri Bb. HR 8799b (through HR8799 e). And of course, everyone's favorite, 2MASS J04414489+2301513b.

These catalog names are useful, but less than public friendly. In science fiction we get Vulcan, Psychon, Arrakis, and other cool names. So why not in real life?

Next-generation echo sounder ready

Echo sounders are used to find fish in the ocean, observe their behavior, and estimate their quantity and size as well as the abundance and distribution of the plankton upon which fish feed. Research vessels and many fishing vessels typically use echo sounders that send and receive signals on up to six frequencies.

NASA Selects American Small Businesses for Continuation of Innovative Research and Technology Projects

NASA has selected 39 small business proposals to enter into negotiations for Phase 2 contract awards through the agency's Small Business Innovation Research (SBIR) Program.

New Space Sensor to Track Air Pollution Across North America

NASA has selected a proposal from the Smithsonian Astrophysical Observatory in Cambridge, Mass., to build the first space-based instrument to monitor major air pollutants across the North American continent hourly during daytime.

NASA, ESA Use Experimental Interplanetary Internet to Test Robot From International Space Station

NASA and the European Space Agency (ESA) successfully have used an experimental version of interplanetary Internet to control an educational rover from the International Space Station.

Clear as ... paper? Scientists 'see' through solid layers

Scientists said Wednesday they have developed a method to "see through" layers of thin, solid material in a breakthrough that holds promise for medical imaging, nanotechnology—and the spy trade.

Quantum kisses change the color of nothing: New ways to measure the world at the scale of single atoms and molecules

Even empty gaps have a color. Now scientists have shown that quantum jumps of electrons can change the color of gaps between nano-sized balls of gold. The new results set a fundamental quantum limit on how tightly light can be trapped.<img src="http://feeds.feedburner.com/~r/sciencedaily/matter_energy/physics/~4/xOp... height="1" width="1"/>

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