Physics

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"/>

Look At This: A Rainbow, Magnetic Twister on the Sun

This vivid twist represents a solar cyclone, made of plasma, or ionized gas, moving along swirling magnetic fields on the Sun. It is a computer simulation of the storms on the Sun, created using data from a space telescope at NASA’s orbiting Solar Dynamics Observatory and the Swedish 1-meter Solar Telescope on Earth.

Look At This: A Rainbow, Magnetic Twister on the Sun

This vivid twist represents a solar cyclone, made of plasma, or ionized gas, moving along swirling magnetic fields on the Sun. It is a computer simulation of the storms on the Sun, created using data from a space telescope at NASA’s orbiting Solar Dynamics Observatory and the Swedish 1-meter Solar Telescope on Earth.

Persistent sync for neurons: Rats' neurons reveal steady neural network coordination

(Phys.org)—A team of Brazilian physicists working with neuroscientists studying freely behaving rats have found that their neurons often act in precise coordination over time, in a study about to be published in the European Physical Journal B. These findings stem from the work of Bruno Silva, a researcher at Bahia Federal University in Salvador, and his colleagues from other universities in the Northeastern region of Brazil, and suggest that neuronal networks' memory could be explored in the future.

Wanna see the space station overhead? NASA will send you mail!

Seeing the International Space Station pass overhead is pretty cool. It glides soundlessly across the sky, getting brighter as it gets closer to you, whizzing by hundreds of kilometers above your head at 8 kilometers per second.

I usually go to Heavens-Above when I think of it to check when the next few passes will be. But wouldn't it be nice if you get a text or email letting you know that a pass is about to happen?

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